Cataract title image


Cataract is a degenerative eye disease where the lens becomes gradually cloudy and causes a blurred vision.

The natural crystalline lens helps us focus on objects at varying distances. As people grow older, by age 65, the lens often stiffens and hardens, and it gradually loses its flexibility and ability of focusing, creating vision problems. This is a natural consequence of aging and it is called presbyopia. Aging is the main cause of cataract. Heredity, birth defects, diabetes mellitus, excessive use of steroid medications and certain eye injuries can cause cataract.

The symptoms of cataract may be subtle and patients are usually not aware of them. Certain diagnostic symptoms are as follows:

  • Vision problems such as blurred or cloudy vision, poor night vision, alterations in color vision, and double vision in a single eye.
  • People become more sensitive to glare and light.
  • The prescription alterations for glasses or contact lenses are seen frequently.

In early stages of the disease, vision can be slightly improved via vision corrections. However, cataract surgery may be required in later stages. Physicians replace the degenerated lens with an intraocular lens (IOLs). This method used here is named as Clear Lens Extraction/Exchange (CLE). There are several types of IOLs such as standard monofocal intraocular lens (IOL), toric IOL, multifocal (IOL) or accommodating lens.

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