In some provinces, a number of optical stores offer sight tests, or vision tests, which use automated machinery. However, a sight test is not a proper comprehensive eye exam and may not be performed by a trained and licensed professional. A Doctor of Optometry, on the other hand, can examine, diagnose, treat, manage and help […]
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What is double vision? If you see two of whatever you are looking at, you may have a condition known as double vision, also referred to as diplopia. What causes double vision? There are two possible causes of double vision: Failure of both eyes to coordinate together, a condition referred to as “strabismus.” If the
What is diabetes? Diabetes is a chronic disease that prevents your body from making or using insulin, which in turn leads to increased sugar levels in your bloodstream, known as high blood sugar. How does diabetes affect the eye? Diabetes and its complications can affect many parts of the eye. Diabetes can cause changes in:
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What is conjunctivitis? Conjunctivitis is an inflammation of the conjunctiva, the thin, transparent layer covering the surface of the inner eyelid and a portion of the front of the eye. Conjunctivitis has several causes and affects people of all ages. What causes conjunctivitis? Three main types of conjunctivitis: infectious, allergic, and chemical. Infectious conjunctivitis: also
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What is colour deficiency? Colour deficiency occurs when your ability to distinguish colours and shades is different from normal. Colour deficiency is more common in males than females, with one in 10 males having a colour deficiency. What causes colour deficiency? Colour deficiency results from an imbalance in the three kinds of cones in the
What is blepharitis? Blepharitis is a common condition that causes eyelid inflammation. It is a chronic external eye disorder resulting in red, burning, and irritated eyes. What causes blepharitis? Blepharitis is caused by inflammation of the oil glands behind the eyelashes. These oil glands are responsible for producing the outermost layer of tears. With blepharitis,
What is astigmatism? Astigmatism is a refractive error that occurs when the front surface of your eye (cornea) or the lens inside the eye is slightly irregular in shape. This results in blurred vision or distortion at all distances. Astigmatism is not a disease, but a common visual condition. What causes astigmatism? Astigmatism is caused
What is a cataract? When the lens within your eye becomes cloudy and opaque, it is called a cataract. Cataracts vary from extremely small areas of cloudiness to large opaque areas that cause a noticeable blurring of vision. Cataracts usually develop in both eyes, but often at different rates. Who gets cataracts? Cataracts happen with
What is lazy eye (amblyopia)? Lazy eye (amblyopia) is the term used when the vision in one eye is reduced because the eye and brain are not working together properly. Lazy eye can result from any condition that prevents the eye from focusing correctly during the early stages of development. If detected and treated, it
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What is Bell’s palsy? Bell’s palsy is a common condition that results from facial nerve weakness or paralysis. It usually only affects one side of the face including the forehead and lower facial areas. Several physical manifestations of Bell’s palsy include: Difficulty closing one eye Slurred speech Drooping of one corner of the mouth Inability
