Cataract

Cataract

 

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A cataract is a clouding of the eye’s natural lens lying behind the iris and the pupil.  Cataracts, the most common cause of vision loss in people with age >40, is the leading cause of blindness in the world.

Types of cataracts:
1. Age-related cataracts – result of aging
2. Congenital cataracts – birth cataracts as a result of  infection, injury or poor development before birth
3. Secondary cataracts – developed as a result of other medical conditions, such as diabetes, exposure to toxic substances, certain drugs (e.g. corticosteroids or diuretics), radiation or ultraviolet light
4. Traumatic cataracts – caused by the injury of eye

Symptoms:
1. Changes in viewing color
2. Double vision
3. Problems in driving at night
4. Problems with glare during the day
5. “Second sight” in older people – Progressive nearsightedness, no longer need reading glasses
6. Vision being cloudy, blurry, filmy or foggy
7. Sudden changes in glasses prescription

Diagnose of Cataracts:
With an eye exam testing your vision (don’t forget bringing your glasses or wear your contacts to the appointment). Your doctor will also dilate your pupil in order to examine the condition of the lens and other parts of the eye.

Cataract   clickhere_red25
白内障   clickhere_orange25



Cataracts and Age-Related Macular Degeneration
BY Joshua Dunaief, MD    
Friday, May 1, 2015
Will Cataract Surgery Make Age-Related Macular Degeneration (AMD) Worse?
Will Cataract Surgery Improve Vision?
Readmore   clickhere_green25

 

Cataracts: animation

 

What are Cataracts?

 

How to Prevent Cataracts