WHAT IS CATARACT
Cataract (Hindi: Safed Motia or Motiabind) is age related clouding and increasing opacification of the natural lens of the eye causing blurring of vision. It occurs with the age and starts after 5th decade of life.The symptoms of cataract can vary according to the area of the lens involved and the blurring is early and more pronounced when central part is opacified as compared to the peripheral part of the lens. The other symptoms may be blurring of vision in sun and in bright light(Glare) , Coloured rings around the lights (Haloes), Multiple blurred images of an object (Polyopia), Blurring of vision in dim light, Difficulty in reading and driving, Repeated quick change in glasses power, eye strain and headache etc.
This clouding of lens can occur due to injury (Traumatic cataract) , Diabetes mellitus and various other diseases and thus can occur earlier also. In new born and infants it occurs due to genetic reasons or poor maternal health and diseases during pregnancy and then is called Congenital Cataract.
TRATMENT OF CATARACT
Treatment of cataract is surgical removal of the cataractous lens. There is no drug or diet available for reducing cataract. The progress of cataract is different in different people and though in some it progresses rapidly and causes vision disturbances , in other people it may take many years to progress.
METHODS OF CATARACT SURGERY
The old system of cataract surgery involved injection around the eye, making the surrounding area and the eye numb, making a large incision (cut) of 12 to 13 mm and taking out the cataract through this incision in one piece (Intracapsular) or just the central nucleus leaving behind the outer covering (the capsule) in which a intraocular lens could be fixed. The large incision was then closed with stitches. The eye was then bandaged for a period of one day or more. The visual recovery in these cases took upto 6 weeks and sometimes removal of stitches was required for complete recovery of vision.