Dr. Nora Mei yu Chan O.D.

LASIK eye surgery is a corrective procedure that aims to rectify vision distortions that are caused by the changing curvature of the cornea and shifting length of the eyeball. The cornea is a transparent coating that bulges on the outside of the eyeball, and allows light to penetrate its surface at...

What is a stye?A stye occurs when a particular strain of bacteria affects the oil gland of the eyelid. It becomes infected and causes inflammation, redness, as well as pain on the eyelid and its surrounding tissues. A stye is an inflamed swelling or circumscribed abscess. It can be treated with...

The lenses of healthy eyes are usually clear. Cataracts occur when a person's lenses become cloudy and opaque. Cataracts can affect both eyes at the same time, called bilateral cataracts. Bilateral cataracts are very common, but cataracts must occur on their own and cannot spread from one eye to the...

What is eye twitching?While it may seem like a normal experience of the eye, eye twitching could become irritating and could be a cause for concern when it persists for a long period of time and with higher frequency. In medical terms, eye twitching is known as blepharospasm, which is defined as an...

What is Double Vision?Seeing two images of the same object displaced horizontally or vertically is known as double vision or diplopia. While most of the cases of double vision are not serious, some need to be treated quickly. There are three categories of diplopia:...

Safeguarding Your VisionWe are all dependent on our vision in more ways than we realize. Without a healthy vision, we would be unable to smoothly do a lot of things. Our vision enables us to properly work and recognize faces and objects.There are numerous factors that can affect our eyes, including...