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Are You Susceptible To Vision Loss?

Vision loss is more common than you may think! In fact, it’s among the most prevalent disabilities in adults and children. Knowing what puts you at risk of developing vision loss is important and can help you to be proactive about caring for your eyes.

Below, we’ll explore the most common causes of vision loss and the risk factors associated with each. 

Spreading awareness and education about visual health is just one way that our eye doctors near you can help. To schedule your comprehensive eye exam, call us today. 

Common Causes of Vision Loss

Glaucoma

Glaucoma is a group of eye diseases caused by a buildup of pressure within the eye. Too much inner-eye pressure can damage the optic nerve and lead to vision loss. 

Since symptoms don’t usually manifest in the early stages of glaucoma, getting regular eye exams is all the more crucial. Advanced or rapidly progressing glaucoma can show a variety of symptoms, such as blurred vision, headache, severe eye pain and redness, seeing halos around lights, and nausea. 

Risk factors for developing glaucoma include: 

  • Being 60 years or older
  • Family history of glaucoma
  • African, Asian, or Hispanic descent
  • High myopia (nearsightedness) or hyperopia (farsightedness)
  • Previous eye injury or certain eye surgeries
  • Certain medications, like corticosteroids 
  • Thin corneas
  • Certain medical conditions, like diabetes, hypertension, heart disease, and sickle-cell anemia

Cataracts

Cataracts occur when the eye’s lens becomes cloudy. A healthy lens is clear and allows light to pass through it undisturbed. 

Common cataract symptoms include cloudy or blurred vision, difficulty seeing at night, light sensitivity, double vision in the affected eye, and seeing colors as faded or yellowish. 

Risk factors for developing cataracts include: 

  • Aging
  • Diabetes 
  • Hypertension
  • Smoking
  • Previous eye surgery, injury, or inflammation
  • Alcoholism
  • Extended use of corticosteroids

Age-Related Macular Degeneration (AMD) 

AMD is the leading cause of severe vision loss in adults over the age of 60. It occurs when the macula (the small central portion of the retina, which is responsible for sharp, colourful, central vision) begins to wear down. 

Early stages of AMD usually go unnoticed, but later stages of the disease can produce symptoms like blurred vision, dark or blurry areas in your central vision, and problems with colour perception. 

There’s not yet a cure for AMD, but certain treatments can help prevent vision loss. 

Risk factors for developing AMD include: 

  • Smoking
  • Obesity
  • Aging
  • Long-term sun exposure 
  • Hypertension
  • Heart disease
  • Family history of AMD
  • Light-colored eyes
  • Farsightedness 

Diabetic Retinopathy (DR)

Diabetic retinopathy is a complication of Type 1 or Type 2 diabetes that affects the light-sensitive tissue at the back of the eye called the retina. 

Initially, diabetic retinopathy shows no symptoms but can eventually lead to blindness. As it develops, it can cause increased floaters, impaired colour vision, dark spots in your visual field, and blurred vision. 

Risk factors for developing diabetic retinopathy include: 

  • Length of time from diabetes diagnosis — the longer you’ve had it, the higher your chances of developing visual complications
  • Uncontrolled blood sugar
  • Obesity
  • High cholesterol or blood pressure
  • Pregnancy
  • Smoking
  • African American, Hispanic, and Native American ethnicities 
  • Family history of DR

So, what’s the bottom line ?

Multiple factors contribute to eye disease and vision loss, and some may even be relevant to you. If you think you may be at risk for vision loss or experience any of the symptoms listed above, speak with your eye doctor in Mississauga as soon as possible. We also recommend you have your eyes thoroughly examined every 1-2 years, or as often as your eye doctor recommends. To schedule your comprehensive eye exam, call Sheridan Optometric Centre today. 

 

Frequently Asked Questions With Our Mississauga Eye Doctors

  1. Can blindness be prevented?

When caught early, many eye diseases can be treated to halt or slow the progression of the disease and potentially prevent vision loss. The best things you can do to preserve your vision for the long term is to lead a healthy lifestyle and make sure you undergo a comprehensive eye exam every 1-2 years. 

  1. Which eye diseases are genetically inherited?

More than 350 ocular diseases have some sort of genetic component. Certain diseases, like retinitis pigmentosa and albinism, are directly inherited through chromosomal information. In other cases, a predisposition to the disease is inherited, rather than the disease itself. 

3 Benefits of Anti-Glare Coating

Glare refers to the excessive brightness caused by direct or reflected light. It can cause eye strain, digital eye strain (when using a computer, for example), halos, and headaches. Glare can also reduce visibility, making it unsafe to drive. 

Anti-glare coating, also known as anti-reflective (AR) coating, is a thin layer applied to the surface of your eyeglass lenses that allows more light to pass through your lenses. By reducing the amount of glare that reflects off of your lenses, you can see more clearly and experience more comfortable vision. You can request anti-glare coating for lenses when you buy eyeglasses.

AR Coating Offers 3 Major Advantages

Better Appearance

Without an anti-glare coating on your glasses, camera flashes and bright lights can reflect off your lenses. This can hinder your appearance when speaking to people or in meetings, cause flash reflections when picture-taking, and make it difficult to find the right angle for video calls. Anti-reflective coating eliminates the harsh reflections and allows others to clearly see your eyes and face. 

Reduced Digital Eye Strain 

You know that tired, irritated feeling you get after staring at a digital screen for several hours? That’s digital eye strain. Anti-glare coating helps reduce digital eye strain by lowering exposure to excessive glare from digital devices and lighting. 

Safe Driving at Night

The bright headlights from cars driving in the opposite direction can pose a serious danger when driving at night. These sudden glares can lead you to momentarily lose focus of the view ahead. AR coating on your prescription eyewear effectively reduces reflections from headlights at night, allowing you to enjoy a better view of the road and safer driving at night.

Let your eyes look and feel better every day with anti-glare coated lenses. Contact us to book your appointment today! 

Protect Your Eyes From Vision Loss: Diabetes Awareness Month

What Is Diabetic Retinopathy?

Diabetic Retinopathy (DR) is one of the most prevalent eye diseases affecting the working age population. It is thought to be caused by high blood sugar levels which, over time, damage the tiny blood vessels of the retina at the back of the eye, making them swell and leak. Left untreated, DR can lead to vision loss and eventually blindness.

Since diabetic eye disease is typically painless and shows no symptoms until its advanced stages, it’s critical to get your annual eye evaluation, as an optometrist can detect the developing signs early enough to prevent vision loss.

Symptoms of Diabetic Retinopathy 

Diabetics may not realize they have diabetic retinopathy, because it develops silently. As the condition worsens, it may cause: 

  • Blurred vision
  • Poor night vision
  • Colors to appear faded or washed out
  • An increased presence of floaters
  • Vision loss
  • Blank or dark areas in your field of vision

Diabetic retinopathy symptoms usually affect both eyes.

Risk Factors

If you are diabetic, caring for your eyes by undergoing routine eye exams and taking care of your body by controlling blood sugar levels are critical to preventing vision loss. There are several risk factors associated with diabetic eye complications, including: 

  • Poor blood sugar control
  • Smoking
  • High cholesterol 
  • High blood pressure
  • Pregnancy
  • Excess weight/obesity

Are There Any Treatments for Diabetic Retinopathy?

Today’s treatment options may improve your vision, even if you feel your eyesight has begun to deteriorate. Medications can be injected to reduce swelling, and laser surgery can be used to shrink and seal off swollen and leaking blood vessels — preserving and, in many cases, even improving vision. 

While certain treatments may work, frequent monitoring of your eyes coupled with managing your blood sugar levels can go a long way toward preventing or reducing diabetic retinopathy complications. 

If You Have Diabetes, Make Sure to: 

  • Control blood sugar and blood pressure to prevent long-term damage to the fine blood vessels within the retina.  
  • Keep a healthy lifestyle routine, especially during stressful times such as the COVID-19 pandemic. (Plus, while diabetics are in the high-risk category, your chances of developing serious COVID-19 related complications is lower if your diabetes is under control.)
  • Maintain a steady diet and exercise regimen to help the body and mind feel better. 
  • Quit smoking, if applicable; you can reach out to a medical professional for guidance.
  • Get yearly diabetic eye exams.

Preventing and managing diabetic retinopathy require a multi-disciplinary approach involving your eye doctor and other medical professionals. Your eye doctor will perform a comprehensive eye exam to determine whether you have diabetic retinopathy, assess its severity, and discuss preventative strategies as well as the latest treatment options. 

Contact Sheridan Optometric Centre at 866-948-8849 to schedule your diabetic eye exam today, and to learn more about what you can do to protect your vision and general health.

How Long Does It Take to Get Used to New Glasses?

Most people who wear glasses are familiar with the excitement and confidence boost that accompanies wearing new specs for the first time. But sometimes there is an adjustment period before your vision is fully comfortable. Things may look blurry, or you may notice feeling dizzy after prolonged wear. Some of these symptoms can be a normal part of the adjustment period, but sometimes they’re a reason to contact your eye doctor. If your new glasses are giving you trouble, speak with Dr. Hwang about ensuring that your eyesight is both clear and comfortable.

When Will My Eyes Adjust to My New Glasses?

It can take a few days to a few weeks for your eyes and brain to fully adjust to your new eyewear, whether you are increasing your prescription or wearing eyeglasses for the first time.

Even if you are getting new glasses with the same prescription, different frames or lenses can alter your vision until you get used to the new frame style or lens type. The complexity of your prescription and whether you buy a lens with premium optics versus basic spherical lens or polycarbonate material all can affect the adjustment time.

Progressive lenses tend to be the most difficult to adjust to. This is related to the peripheral soft focus zones, which are much less blurred for customized lenses prescribed by your local optometrist.

What Are Some Possible Visual Symptoms I Could Experience?

Some common experiences shared by those adjusting to new eyewear include:

  • Eye strain, headache
  • Blurry vision
  • Trouble with depth perception, nausea and dizziness
  • “Barrel distortion” — objects appear distorted, for high plus lenses
  • “Fishbowl effect” — the feeling that your visual field is being bent along the edges, as if you’re looking through a fishbowl, common in high minus prescriptions

Why Do My New Glasses Give Me a Headache?

Fatigued eye muscles can cause headaches. But your eyes aren’t the only things adjusting to your new lenses. Your brain is also working hard to create a clear picture of the messages it’s receiving from your eyes. This extra brain activity can sometimes bring on a headache, which should only last about a day or so.

Why Do I Feel Dizzy With My New Glasses?

Dizziness and nausea can be caused by problems with depth perception, similar to motion sickness. With motion sickness, you feel uneasy because your brain is having difficulty understanding the position of your body in relation to the space surrounding it. So when you wear your new glasses, your brain may need some time to understand how to interpret the new images it’s receiving, causing you to feel disoriented or dizzy.

When Should I Call My Eye Doctor?

When the adjustment period extends beyond a few weeks, there is a possibility that there was an error in the manufacturing of the lenses. Many people purchase eyewear from somewhere other than their eye doctor or order glasses online, and some studies have shown that up to 40% of online eyewear is made incorrectly or inaccurately.

It’s important to note that many offices may charge fees to check eyewear that is not made by them and that there may be fees for rechecking a patient’s refraction when glasses are made by another source.

Discomfort that lasts longer than a couple of weeks means it’s time to call your optometrist. Persistent symptoms like headaches, dizziness, or blurry vision can indicate that your glasses aren’t well suited to your eyes and need adjusting. Your optometrist will double check the prescription of the glasses among other things to ensure that the new glasses are right for you.

If you need new glasses or are having a hard time adjusting to a new pair, don’t hesitate to contact Sheridan Optometric Centre to schedule an appointment with the Mississauga eye doctor.

School and Vision: 2 Important Partners

It’s February and that means we’re smack in the middle of winter, which is also the middle of the school year. It’s the season when kids fervently hope for snow days and parents hope they don’t happen. As we head towards the second half of the school year, you’ve probably attended a few parent-teacher conferences and discussed your child’s education.

Like peanut butter and jelly, school and vision go hand-in-hand. Both are important partners in ensuring that children excel in their learning, extracurricular activities, and relationships with their peers.

ADD/ADHD and Vision Problems

Did you know that certain vision problems can mask themselves as behavioral or learning difficulties? In fact, education experts often say that 80% of learning is visual.

A 3rd grader may be misdiagnosed with ADD or ADHD if they display behaviors like being fidgety, having difficulty focusing or concentrating, or having a short attention span. These symptoms may not always be purely behavioral; they could be vision-related. A child who experiences blurry vision, suffers from headaches or eyestrain, or itches their eyes excessively may, in fact, have a refractive error such as myopia (nearsightedness), hyperopia (farsightedness) or astigmatism, or another condition such as convergence insufficiency.

Undiagnosed myopia, for example can cause these same types of behaviors that are commonly attributed to attention disorders. That’s because if your child has to squint his eyes to see the board clearly, eyestrain and headaches are bound to follow. Struggling with reading or writing is common too. Other vision disorders can cause similar behavior patterns. An additional challenge is that kids don’t always express their symptoms verbally, and often they don’t even realize that other people see differently than do.

This can also impact kids emotionally. When they feel like they’re not keeping up with their peers or their learning is inferior in some way, this may lead the child to act out verbally or even physically.

Distinguishing between colors is an important skill for early childhood development. While color vision deficiency affects both children and adults, kids, in particular, can experience difficulty in school with this condition. Simply reading a chalkboard can be an intense struggle when white or yellow chalk is used. When a teacher uses colored markers on a whiteboard to draw a pie chart, graph, or play a game, this can be a difficult experience for a young student with color blindness. A child, his or her parents, and teachers may even be unaware that the child is color blind.

What School Vision Screenings Miss

Many parents believe that an in-school vision screening is good enough. However, an eye chart test only checks for basic visual acuity, so kids with blurry or double vision, for example, may be able to pass a vision screening while still struggling to read, write, or focus on the board. Children who have problems with their binocular vision, which means using both eyes together to focus on something, can pass the screening when they use just one eye to read the chart.

Studies show that a whopping 43% of children who have vision problems can successfully pass a school vision screening. This means that the vision test may fail to detect the more subtle but significant and treatable vision problems. Early detection and diagnosis is critical to maintaining healthy eyes. That’s why it’s so important to make eye care a part of your child’s healthcare routine.

The Importance of Yearly Eye Exams

The #1 way to do this is to schedule annual eye exams. Your eye doctor can perform a comprehensive pediatric eye exam to check visual acuity, visual clarity, binocular vision, and screen for any eye diseases or vision problems.

Because children develop so rapidly at different ages, it’s essential that eye exams are done at specific stages of their young lives. In fact, The American Optometric Association (AOA) recommends regular eye exams at age 6 months, 3 years, before school starts, and every 2 years thereafter.

Simply being aware of the tendency to associate a child’s learning issues with a learning disability or attention disorder instead of an underlying vision problem is critical for parents and educators. Both are partners in a child’s education and they must work together to ensure that each child gets the health care and attention he or she needs.

If you notice changes in your child’s schoolwork, behavior with friends or in sports or other after-school activities, it may be time to schedule an eye exam. You’ll want to be sure that your kids have all the tools they need to succeed in school and beyond.

Sunburned Eyes? Beware of Snow Blindness!

Playing outside in a snowy winter wonderland can be magical. Under clear skies in the sunshine, the soft white landscape becomes just about irresistible, whether at home or travelling on a winter-weather get-away. 

Before you let your children run outside to build the most adorable snowman or fling themselves onto the ski slopes, make sure their eyes are well protected. Sun and snow can be a dangerous combination for both the eyes and skin. 

Sunlight Reflected in the Snow

We all know why we need to wear sunglasses and sunscreen in the summer. Winter, however, can be deceiving. It’s an illusion to assume that we are safe from sunburns during the colder season. 

Snow acts as a powerful mirror for sunlight and magnifies the effects of UV rays which would otherwise be absorbed by the ground. As a result, the eyes are exposed to both the UV radiation bouncing back from the snowy carpet and the rays shining down directly from the sun. 

If your family is skiing or snowboarding up in the mountains, you need to be even more careful! UV rays are more powerful at higher altitudes. Another important factor to remember is that ultraviolet radiation penetrates through clouds, so even if the sun is hidden behind them, it can still damage your eyes.

Can I Get Sunburned Eyes?

As you may have already guessed, yes —it is possible to get sunburned eyes. The condition is called snow blindness, or photokeratitis. Although most people do not actually experience permanent vision loss, photokeratitis is usually painful, causes extreme sensitivity to light, and can take up to two weeks to fully heal. 

A single day of playing outside in the snow and being exposed to intensive sun glare can be enough to cause snow blindness— though usually with a delay of several hours following sun exposure. What’s worse, if the eyes are repeatedly sunburned there is a risk of long-term damage. 

Symptoms of Snow Blindness

Just like a typical skin sunburn appears only after having been exposed to the sun’s rays, the same is true for the eyes. One sign of overexposure to UV is a stinging or burning sensation in the eyes, or a feeling of having sand in your eyes after a day spent in the snow. 

When eyes are sunburned, they become highly sensitive to light, making it difficult to be outside. Other symptoms include blurred vision, watery eyes, and swollen eyelids. In rare cases, photokeratitis can even cause temporary vision loss, but it doesn’t usually last longer than a day or two.

How Do I Protect My Eyes From Sunburn?

Prevent overexposure to sunlight by wearing sunglasses that absorb at least 95% of ultraviolet radiation when you go outside, no matter what time of year it is. An even more effective solution for winter activities is to strap on a pair of well-fitting UV protective sports eyewear, such as ski goggles. Wrap-around styles are ideal because they stay on even when you’re active, and block the sun’s rays from entering your eyes from the sides too. 

For winter sports lovers, there are plenty of good reasons to wear protective eyewear, and what works well in sports can be good for play as well. 

How Can I Treat Sunburned Eyes?

It’s after the fact, and you’re suffering from photokeratitis… now what? Give your eyes a rest. 

  • Stay out of the sun for a few days until the symptoms die down. 
  • You may find it comforting to wear sunglasses even when indoors. 
  • For additional relief, place a cool, damp cloth over the closed eyelids while resting.
  • Don’t wear contact lenses until the eyes return to normal. 
  • Artificial tears can help keep the eyes moistened, soothe discomfort and promote healing. However, it’s important to consult an eye doctor before running to the pharmacy, since some eye drops are not well-suited for this condition. You can give us a call at 866-948-8849.

Now that you know the risks and precautions to take, you’re all set to enjoy the winter wonderland! Dr. Hwang at Sheridan Optometric Centre is happy to help you protect yourself and your family from snow blindness, and offers expert treatment for sunburned eyes. 

Smart Hygiene Habits to Care for Your Contact Lenses

Swimming in a pool with your contacts on or topping off your solution may seem harmless, but they could compromise your contact lenses and your vision.

Below are daily habits to adopt for optimal contact lens care:

Wash Your Hands Regularly

Whether you use daily or monthly contact lenses, make sure to first wash your hands. Placing your finger on some clear tape and seeing the mark you leave will give you some indication of what you’re putting on your contact lenses if you don’t wash and dry your hands beforehand. Avoid using scented or oily soaps, as their residue might stick to the lens surface. Similarly, avoid creams and lotions prior to inserting contacts into your eyes. 

This one simple and easy habit can make a massive difference in your eye health and can potentially prevent eye irritation and infections. 

Clean Your Contacts Daily

You must clean and disinfect your contact lenses on a daily basis, unless you use daily disposables, of course. There are several cleansing systems and solutions available — the choice depends on the type of lens you use. Speak with Dr. Hwang to determine the best cleaning solution for your lenses and eyes.

Avoid Contact with Water

It might seem harmless, but we advise against using tap water, as it contains impurities and microorganisms that can cause infections. Furthermore, tap water can lead your contacts to swell and change their shape. Don’t swim with contact lenses in.  Prescription goggles and scuba masks are available.

Never Ever Use Saliva 

Your mouth is filled with germs, which are fine for your teeth but not for your eyes. Avoid using saliva to “clean” or moisten your contact lenses.  

Do Not Top off Solution

Just as you shouldn’t mix spoiled food with fresh foods, you should not top off yesterday’s solution in your contact lens case with fresh solution. The concoction might not contain enough disinfectant to kill off organisms and clean your lenses. 

Routinely Change the Contact Lens Case

Many people don’t know about this one, but it’s recommended to change your contact lens case every 2-3 months, as microscopic dirt may linger in the case, leading to contamination and eye infections. 

Don’t Sleep with Your Lenses On

It’s important to give your cornea a chance to breathe; sleeping with your contacts may cause redness, soreness and infections. So make sure to remove your contact lenses before you get some shut-eye, unless they’re specialty lenses which are intended to be worn overnight. 

If you’re using orthokeratology (ortho-k) lenses to reshape your cornea, do wear them at night or as instructed by your eye doctor. 

Get That Annual Eye Exam

Don’t forget to book your yearly eye exam at Sheridan Optometric Centre in Mississauga, as your vision can change. You can’t purchase new contact lenses with an expired prescription anyway, so you’ll need an updated one when your contact lens supply is running low. Furthermore, getting an exam is also an excellent opportunity to ask Dr. Hwang any questions you may have.

Parkinson’s Awareness Month and Your Vision

April is Parkinson’s Awareness Month in the USA and Canada, a time when those living with the disorder, their family members, friends, and community come together to raise awareness and share helpful information. People with Parkinson’s Disease (PD) and their loved ones are encouraged to share their stories, struggles, and successes in order to educate and support others.

The Parkinson’s Foundation has announced this year’s theme: #KeyToPD and Parkinson Canada advocates the same involvement. What is the key to living a high quality of life while living with Parkinson’s? Patients, doctors, caregivers, and families are encouraged to use this hashtag on social media to give of their knowledge and experience.

In order to successfully manage the disorder, it’s essential to understand the disease, symptoms, and treatments. After all, knowledge is power.

What is Parkinson’s Disease?

Parkinson’s Disease is a neurological disorder that affects the brain’s ability to control physical movement. It typically affects middle aged people and the elderly. Parkinson’s causes a decrease in the brain’s natural levels of dopamine, which normally aids nerve cells in passing messages within the brain. According to The Parkinson’s Foundation and Statistics Canada, the disorder affects an estimated 1 million people in the United States, 55 000 Canadians, and 10 million globally.

What Causes Parkinson’s Disease?

Although much research has been done on the subject, the exact cause of the disease isn’t really known. What doctors and scientists do know is that certain nerve cells located in the brain somehow break down. This damage interferes with both motor and non-motor functions.

How Does Parkinson’s Affect Vision?

Parkinson’s can have a significant impact on vision and ocular health. Patients with PD often find themselves unable to control blinking. Blinking is good for the eyes as it moisturizes the surface and clears it from foreign substances. Less blinking can cause Dry Eye Syndrome, resulting in itchy, red, or gritty-feeling eyes. Other people blink too much or can’t keep their eyes open. 

In more serious cases, Parkinson’s affects the nerves that help us see. Someone with PD may experience blurry vision, double vision, difficulty seeing color and contrast, problems with focus, and other visual symptoms. 

In addition to the inherent impact of the disease, some of the medications used to treat Parkinson’s symptoms have known side effects including dry eyes, blurred eyesight and even hallucinations in advanced PD.

Common Visual Symptoms of Parkinson’s

Although the most recognized physical symptom is uncontrollable tremors, patients can experience other symptoms that affect their vision. These typically include:

  • Apraxia (inability to open the eyelids) 
  • Blurry or double vision
  • Difficulty with balance
  • Dry eyes
  • Eye twitching
  • Focusing problems

Parkinson’s Patients and Eye Exams

Eye exams can be particularly challenging for a PD patient, so choosing the right doctor is essential. Make sure your eye doctor regularly treats patients with PD. They’ll understand your or your loved ones’ unique needs and will take the time needed.

Common Non-Visual Symptoms of Parkinson’s

PD affects other areas of the body that may or may not – depending on each patient – be related to their eye health and visual needs. 

Some of the most common non-visual symptoms are:

  • Depression
  • Excessive saliva
  • Loss of smell
  • Moodiness
  • Muscle cramps
  • Sleep disturbance
  • Slow movement (bradykinesia)
  • Stiff limbs
  • Tremors

Coping With Vision Problems From Parkinson’s

Despite the struggles caused by this degenerative disease, there is hope. Talk to your eye doctor. He or she may recommend medicated ointments or drops, injections, therapeutic lenses, visual aids, vision therapy, or a combination thereof. Additionally, a Neuro-Optometric Rehabilitation doctor can provide comprehensive eye care specifically designed for neurological disorders like PD.

Treatment for Parkinson’s Disease

There is currently no cure for the disease itself, but there are options to treat the symptoms of PD. A combination of medications, physical and/or occupational therapy, support groups, and of course, top-quality vision care can give a PD patient relief for some of their symptoms and tools to help cope with the condition.

Research and clinical trials are continuing as doctors and others in the medical community work towards the goal of finding a cure for PD.

No two patients are alike, and each can experience PD differently from the other, so finding what works for you or your loved one is key. During this Parkinson’s Awareness Month, share your #KeyToPD and give your loved ones hope for a healthy and high quality of life.

What You Need to Know About Glaucoma – The Sneak Thief of Sight

January is National Glaucoma Awareness Month.

What is Glaucoma?

Glaucoma, a silent eye disease, is the most common form of irreversible blindness in the world. It is actually a group of diseases that causes progressive damage to the optic nerve. 

  • Glaucoma is a progressive eye disease that can lead to permanent vision loss if not controlled. 
  • There is currently no cure for glaucoma, but there are many treatments available for slowing the progressive damage to the eye. Treatment, however, can’t reverse damage that is already done.
  • Glaucoma affects the optic nerve which sends visual information from your eye to your brain. 
  • Glaucoma is called the “Thief Sneak of Sight” because there are often no symptoms in the early stages such as pain or “pressure sensation” as one may expect, and by the time it is diagnosed there may already be permanent vision loss.
  • When vision loss occurs, peripheral vision is typically affected before central vision. As a result, glaucoma is a major public health issue because individuals usually do not notice any problem with vision until end stages of the disease when there is severe and irreversible vision loss.
  • Awareness and regular eye exams are key to early detection and preventing vision loss. 

What Causes Glaucoma?

Glaucoma is caused by a buildup of natural fluid that doesn’t drain properly from the eye. The buildup of fluid can result in high pressure in the eye which is the most common cause of the condition. There are many types of glaucoma, which include:

Chronic (open angle) glaucoma occurs when pressure builds up over time, usually as a result of aging. This is the most common type of glaucoma. 

Acute (angle closure) glaucoma is an acute condition where pressure builds up suddenly and demands immediate medical attention. Symptoms include blurred vision, eye pain, headaches, seeing halos around lights, nausea and vomiting. 

Secondary glaucoma results from another eye disease, condition or a trauma to the eye. 

Normal tension glaucoma is when there is no build up of pressure but the optic nerve is still damaged. We are still not yet sure what causes this type of glaucoma. 

Who is at Risk for Glaucoma?

Everyone is at risk of glaucoma however there are certain factors which increase the likelihood of developing the condition. Vision loss from glaucoma can be greatly reduced when detected and treated early which is why knowing your risk factors can play a tremendous role in prevention. 

Age

Age is one of the biggest risk factors, as your chances of developing glaucoma increase significantly after the age of 40. In fact people over 60 years old are six times more likely to get the condition. 

Ancestry and Family History

Individuals from African American, Hispanic, Asian and Native American or Aboriginal Canadian descent are at increased risk. Family history is a very strong factor as the condition occurs twice as much in people with close relatives who have had glaucoma. 

Previous Eye Injury, Traumas or Surgery

Eye injuries, traumas or surgeries have been known to sometimes cause secondary glaucoma which can happen immediately after the injury or procedure, or even years later. Even childhood injuries can result in secondary glaucoma later in life. 

Use of Steroids

Studies show that prolonged steroid use is linked to increased elevated intraocular pressure which increases the risk of open-angle glaucoma. 

 

Certain medical and eye conditions such as diabetes, hypertension and high myopia (nearsightedness) also increase a person’s risk of developing glaucoma. 

Glaucoma Treatment

While there is no cure for glaucoma, there are treatments to slow down the progression of the disease including eye drop medications, iridotomies, iridectomies, laser procedures and surgeries. 

Glaucoma Prevention

Other than taking care of any underlying conditions that may increase the risk of developing glaucoma, there is little one can do in the way of prevention. You can however reduce your chances of suffering vision loss. The first step is knowing the risk factors and signs of the condition (even though as mentioned most cases have no symptoms in the early stages, until vision is already lost). 

The best possible way to prevent vision loss is to have regular comprehensive eye exams to check the health of your eyes and if your eye doctors prescribes medication for glaucoma, make sure to diligently take them as directed. Your eye doctor will be able to conduct certain tests to detect eye diseases such as glaucoma before you even begin to notice symptoms. If you have any of the risk factors above, mention it to your eye doctor, and always be sure to schedule a yearly eye exam, or as often as your eye doctor recommends, to check the health of your eyes and rule out any underlying or developing eye conditions like glaucoma. 

8 Tips to Relieve Winter Dry Eyes

What can I do about Dry Eyes in Winter ?

Dry eyes is one of the most common complaints eye doctors get from patients during the winter season, especially in the cooler climates. That’s why we’d like to share some tips on how to relieve dry eye discomfort, and how to know when your condition is serious enough to come in for an evaluation.

Sheridan Optometric Centre - Local Vision Center in Mississauga, Ontario

Whether you live in a climate with cold winter weather or you are planning a ski trip up north, winter can be a challenge if you suffer from dry eyes. Dry, cool air, cold winds and even drier indoor heating can cause eye irritation, burning, itchiness and redness, and sometimes even excessively watery eyes as more tears are produced to compensate for the dryness. Many people have a chronic feeling that they have something in their eye and some even experience blurred vision. These symptoms can be debilitating!

“An estimated 5 million people over 50 years of age in the U.S. suffer from dry eye, according to the National Eye Institute (NEI).”, American Optometric Association

Tips to Relieve Winter Dry Eyes

  • Keep eyes moist using artificial tears or eye drops. You can apply these a few times each day when the eyes are feeling dry or irritated. If over-the-counter drops don’t help or if you have chronic dry eyes, speak to your eye doctor about finding the best drops for you. Since not all artificial tears are the same, knowing the cause of your dry eye will help your eye doctor determine which brand is best suited for your eyes.
  • Use a humidifier to counteract the drying effects of indoor heaters or generally dry air.
  • Point car vents or indoor heaters away from your face when the heat is on. Try to keep your distance from direct sources of heating, especially if they blow out the heat.
  • Drink a lot! Hydrating your body will also hydrate your eyes.
  • Protect your eyes outdoors with sunglasses or goggles – the bigger the better! Larger, even wrap-around glasses as well as a hat with a wide brim will keep the wind and other elements out of your eyes. If you wear goggles for winter sports, make sure they fit well and cover a large surface area.
  • Soothe dry eyes using a warm compress and never rub them! Rubbing your eyes will increase irritation and may lead to infection if the hands are not clean.
  • Give your eyes a digital break. People blink less during screen time which is why extensive computer use can lead to dry eyes. Follow the 20/20/20 rule by taking a break every 20 minutes to look 20 feet away for 20 seconds and make sure you blink!
  • For contact lens wearers: If you wear contact lenses, dry eyes can be particularly debilitating as the contact lenses can cause even further dryness and irritation. Contact lens rewetting drops can help your eyes feel better and may also allow you to see more clearly. Not all eyedrops are appropriate for use with contact lenses, so ask your optometrist which eyedrop is compatible with your contacts and cleaning solution. If rewetting drops don’t help, consider opting for glasses when your dry eyes are bad, and speak to your optometrist about which brands of contact lenses are better for dry eyes. Many people find dry eye improvement when they switch to daily single use contact lenses.

Local Dry Eye Treatment in Mississauga, Ontario

Chronic Dry Eyes or Dry Eye Syndrome

Dry eye syndrome is a chronic condition in which the eyes do not produce enough tear film, or do not produce the quality of tear film needed to properly keep the eyes moist. While winter weather can make this condition worse, it is often present all year round. If you find that the tips above do not alleviate your discomfort or symptoms, it may be time to see a optometrist to see if your condition requires more effective medical treatment.

Dry eyes and uncomfortable symptoms are not a reason to throw out your contact lenses! Your first step should be a visit to our optometrist for an eye exam to rule out any other serious, underlying eye problems.

Once the cause of your discomfort is determined, we’ll work with you patiently to find the best solution.
If you’re bothered by dry eyes, schedule a comprehensive eye exam with our optometrist.
We’ll evaluate the cause of your condition and recommend the best dry eye treatment to bring you relief!

Call Sheridan Optometric Centre on 866-948-8849 in Mississauga, ON to schedule an eye exam with our optometrist.

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