Cataract Extraction

A cataract is a clouding of the lens. It may be partial or full-scale. It may be located in the center of the lens, or in marginal areas where vision is then less disturbed. As this clouding thickens, it prevents light from passing clearly through the lens. The slight or early signs do not affect vision, but they can be detected by ophthalmic examination. As the clouding increases, the vision decreases and it cannot be corrected with glasses.

A cataract usually affects both eyes, but the vision loss may not develop equally. The exact cause of cataracts is unknown, but many factors have been identified that may promote the formation.

The most common ones are:

  • Age
  • Diabetes
  • High UV radiation exposure from the sun
  • Eye inflammation
  • Penetrating injuries
  • Cataracts in conjunction with taking prescription drugs such as chemotherapy
Cataract extraction

Symptoms

  • Blurred vision, the intensity may vary depending on lighting conditions
  • Fading colours
  • “Double vision”, affecting one eye
  • Frequent refraction changes
  • The vision cannot be corrected, even with glasses

Of course these symptoms may be related to other eye problems and do not necessarily represent cataracts, so if any of these symptoms occur, medical eye examination is necessary. Symptoms may be mild at the beginning, then they intensify. The difference between the two eyes becomes obvious with the passing of time. Vision starts to decrease gradually.
It is important to know that patients with diabetes and near sightedness may develop cataract formation much earlier. Sudden and unexplainable visual acuity changes should be investigated immediately.

How to cure a cataract ?

Today, the most common surgical technique for removing cataracts is by phacoemulsification. During surgery the clouded lens inside the eye is removed and replaced by an intra ocular lens implant.