The lens of the eye needs to be clear so that light can pass through it uninhibited and cast an image on the back of the eye (retina). Clouding or opacification of the lens of the eye, which is clear under normal circumstances, is known as a cataract. This usually develops over a long time, impairing vision and may ultimately lead to blindness if left untreated. Cataracts are most commonly seen in older people (senile cataracts) but congenital cataracts may be present at birth. The other types of cataracts that may be seen are traumatic cataracts that may occur after an injury to the eye, and secondary cataracts such as those occurring due to a medical condition such as diabetes. Cataracts may develop in one or both eyes. There are various other causes of visual disturbances that may be similar to that of cataracts. It is therefore important that high risk patients, like those with diabetes, undergo routine screening. Cataracts develop gradually in most cases and may only be evident once it is significantly impacting on normal vision. A number of tests and diagnostic investigations will help to identify a cataract and differentiate from other ocular conditions. Cataract Tests The … Continue reading Tests to Detect A Cataract and Different Types of Treatment