The Cataract In Diabetes
Light rays will normally enter the eye from the front, and progressively pass through the clear cornea, the anterior chamber, through a clear lens, the posterior chamber, and then hit the back of the eye.
If the lens clouds over, light cannot pass through, and the image becomes dim or blurry and colors become somewhat duller. This clouding of the lens is known as a cataract. Some other signs of a cataract include impaired distance vision, poorer vision in bright lights and conversely better vision toward the evening, sensitivity to glare and bright light, a frequent need for new eyeglasses prescriptions, seeing halos around lights, and monocular diplopia, or even double vision in one eye due to uneven increase in optical density of the lens with resultant bending of light rays.
People with diabetes have a higher risk of developing cataracts in their 30’s or 40’s. In the early stages patients may be able to cope in their daily activities. However when the cataract becomes more opaque, a surgical technique known as phacoemulsification is often offered. This is done under local anesthesia, and usually takes less than an hour. The cataract is removed through a very small incision and often an artificial lens is implanted.
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