WHAT IS CATARACT? (I PART)
Cataract is the clouding of the lens of your eye that impairs vision .Cataract is responsible for more than half of blindness in the world ,which is a grim fact because it is a treatable condition.
WHAT CAUSES CATARACT ?
Advancing age is a primary reason for cataract .With age ,protein of the lens turns opaque .In the initial stage ,the lens bends light rays irregularly which requires prescription glasses of higher number to correct it.
other causes of cataract are metabolic disorders ,excessive exposure to sunlight ,life style disorders like heavy alcohol consumption and smoking .Injury to the eye can also lead to clouding of the lens of the eye .
Metabolic disorders
WHAT ARE THE SYMPTOMS OF CATARACT ?
Cataract can make simple day to day living difficult .The symptoms are :
(1)The vision becomes cloudy ,blurry or foggy .
(2)Progressive nearsightedness in older people .
Nearsightedness, or myopia, as it is medically termed, is a
vision condition in which close objects are seen clearly, but
objects farther away appear blurred.
(3)Changes in the way you see colour because the lens acts as a filter .
(4 )Problems driving at night such as glare from oncoming headlights .
(5 )Double vision (like a suprimposed image).
(6 )Sudden changes in glasses prescription.
How Cataract Is Treated ?
When cataract is formed ,surgery is the only way to treat it .In cataract surgery ,the surgeon removes the clouded lens and puts an Intra Ocular Lens (IOL) in your eyes .Your vision will be as good as pre -cataract surgery ,though you may need to wear glasses .Over the years ,cataract surgery has moved from vision restoration to refractive surgery ,so that you may have reduced need of glasses.
(continued....)
Surgical Techniques
Micro Incision Cataract Surgery
Over the years the size of corneal incision made during cataract surgery has considerably reduced leading to improved visual outcome & quicker post procedure recovery for the patient .
(1)Requires a very small incision of about 2mm.
(2)Cataract is emulsified into small pieces by Phaco and a foldable IOL is implanted.
Phacoemulsification cataract surgery is a procedure in
which an ultrasonic device is used to break up and then
remove a cloudy lens, or cataract, from the eye to improve
vision. The insertion of an intraocular lens (IOL) usually
immediately follows phacoemulsification.
(3)Walk -in ,Walk -0ut procedure .
(4)Stitchless ,bloodless ,painless surgery .
(5)Heals very quickly.
Small Incision Ctaract Surgery (SICS)
(1)Requires a smaller incision of about 2 mm.
(2)Cataract is removed manually and foldable intraocular
lens
(IOL) is implanted .
(3)No stitches .
(4)Heals fast.
CONVENTIONAL CATARACT SURGERY OR EXTRA CAPSULAR CATARACT EXTRACTION (ECCE)
(1)Requres an incision of 10 -12 mm.
(2)The cloudy eye lens is removed in one piece .
(3)A hard plastic lens is implanted .
(4 )Multiple stitches are required .
(5 )Final glass prescription could take 6-10 weeks.
Conventional surgery
10 -12 mm .incision (Multiple Stitches)
Phacoemulsification
3mm.incision (Stitchless).
Cataract is the clouding of the lens of your eye that impairs vision .Cataract is responsible for more than half of blindness in the world ,which is a grim fact because it is a treatable condition.
WHAT CAUSES CATARACT ?
Advancing age is a primary reason for cataract .With age ,protein of the lens turns opaque .In the initial stage ,the lens bends light rays irregularly which requires prescription glasses of higher number to correct it.
other causes of cataract are metabolic disorders ,excessive exposure to sunlight ,life style disorders like heavy alcohol consumption and smoking .Injury to the eye can also lead to clouding of the lens of the eye .
Metabolic disorders
Metabolism is the process your body uses to get or make
energy from the food you eat. Food is made up of proteins,
carbohydrates, and fats. Chemicals in your digestive system
break the food parts down into sugars and acids, your
body's fuel. Your body can use this fuel right away, or it can
store the energy in your body tissues, such as your liver,
muscles, and body fat.
A metabolic disorder occurs when abnormal chemical
reactions in your body disrupt this process. When this
happens, you might have too much of some substances or
too little of other ones that you need to stay healthy.
You can develop a metabolic disorder when some organs,
such as your liver or pancreas, become diseased or do not
function normally. Diabetes is an example.
WHAT ARE THE SYMPTOMS OF CATARACT ?
Cataract can make simple day to day living difficult .The symptoms are :
(1)The vision becomes cloudy ,blurry or foggy .
(2)Progressive nearsightedness in older people .
Nearsightedness, or myopia, as it is medically termed, is a
vision condition in which close objects are seen clearly, but
objects farther away appear blurred.
(3)Changes in the way you see colour because the lens acts as a filter .
(4 )Problems driving at night such as glare from oncoming headlights .
(5 )Double vision (like a suprimposed image).
(6 )Sudden changes in glasses prescription.
How Cataract Is Treated ?
When cataract is formed ,surgery is the only way to treat it .In cataract surgery ,the surgeon removes the clouded lens and puts an Intra Ocular Lens (IOL) in your eyes .Your vision will be as good as pre -cataract surgery ,though you may need to wear glasses .Over the years ,cataract surgery has moved from vision restoration to refractive surgery ,so that you may have reduced need of glasses.
(continued....)
Surgical Techniques
Micro Incision Cataract Surgery
Over the years the size of corneal incision made during cataract surgery has considerably reduced leading to improved visual outcome & quicker post procedure recovery for the patient .
(1)Requires a very small incision of about 2mm.
(2)Cataract is emulsified into small pieces by Phaco and a foldable IOL is implanted.
Phacoemulsification cataract surgery is a procedure in
which an ultrasonic device is used to break up and then
remove a cloudy lens, or cataract, from the eye to improve
vision. The insertion of an intraocular lens (IOL) usually
immediately follows phacoemulsification.
(3)Walk -in ,Walk -0ut procedure .
(4)Stitchless ,bloodless ,painless surgery .
(5)Heals very quickly.
Small Incision Ctaract Surgery (SICS)
(1)Requires a smaller incision of about 2 mm.
(2)Cataract is removed manually and foldable intraocular
lens
(IOL) is implanted .
(3)No stitches .
(4)Heals fast.
CONVENTIONAL CATARACT SURGERY OR EXTRA CAPSULAR CATARACT EXTRACTION (ECCE)
(1)Requres an incision of 10 -12 mm.
(2)The cloudy eye lens is removed in one piece .
(3)A hard plastic lens is implanted .
(4 )Multiple stitches are required .
(5 )Final glass prescription could take 6-10 weeks.
Conventional surgery
10 -12 mm .incision (Multiple Stitches)
Phacoemulsification
3mm.incision (Stitchless).
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