CATARACT Surgery
Normally the lens of the eye is clear and allows light rays to pass through easily When a cataract develops the lens becomes cloudy and opaque The light rays no longer pass through the lens easily so the patient cannot see clearly
Cataract is not a new growth or a film over the eye In most cases it is just part of the aging process
There are many types of cataracts
A change in the chemical composition of the lens causes most cataracts The following are the various types of cataracts
Senile Cataract This is the most common type of cataract comprising 80 percent of the total cataracts It occurs in patients above the age of 50
Congenital Cataract Cataracts in children are rare They can be caused by infection of the mother during pregnancy or they may be hereditary
Traumatic Cataract Eye injuries may cause cataracts in patients of any age
Secondary Cataract Eye diseases like glaucoma iritis eye tumours and diabetes may cause cataracts
Druginduced Cataract Prolonged treatment with steroid drugs either for local e g allergic conjunctivitis or systemic diseases e g asthma may lead to cataract formation
Symptoms of Cataract
Cataract formation is not associated with signals such as pain redness or tearing The common symptoms are Blurring or dimness of visionFeeling of a film over the eyesSensitivity to light and glareChange in colour of pupil.Double vision dulling of colour sense Cataract cannot be cured by medicines or spectacles Removal of the clouded lens through surgery is the only treatment
Routine method old method
After administering a local anaesthesia a 10 mm incision is made in the eye The cataract lens is removed and it may be replaced by an Aphakic glass The incision is then closed with sutures After the surgery glasses with high power called ophakic spectacles are prescribed to the operated person Intra Ocular lens IOL is a tiny transparent convex lens It is made of polymethyl methacrylate a harmless plastic substance Unlike contact lens an IOL stays permanently in the eye and does not cause irritationAfter administering a local anaesthesia a 10 mm incision is made in the eye The clouded lens is removed and replaced by an IOL and the incision is then closed with sutures The entire procedure takes only 15minutes .Phaco or sutureless surgery with implantation of IOL
After giving a local anaesthesia a 5mm incision is made in the eye The cataract lens is broken into small pieces by a machine with ultrasonic waves and removed with a needle A specially prepared IOL is inserted into the eye and the wound heals without sutures Early surgery can be done so that patient need not wait for the cataract to mature,SmallIncision,No sutures and no need of suture removal,No irritation no watering ,Early return to work ,No need to continue drops for a long time,No need for hospital stay.Even if the patient stays it is only for a short time.Only one postoperative visit ,Stable refraction after one month The ophthalmic surgeon decides whether the patient can undergo phaco or not.
Normally the lens of the eye is clear and allows light rays to pass through easily When a cataract develops the lens becomes cloudy and opaque The light rays no longer pass through the lens easily so the patient cannot see clearly
Cataract is not a new growth or a film over the eye In most cases it is just part of the aging process
There are many types of cataracts
A change in the chemical composition of the lens causes most cataracts The following are the various types of cataracts
Senile Cataract This is the most common type of cataract comprising 80 percent of the total cataracts It occurs in patients above the age of 50
Congenital Cataract Cataracts in children are rare They can be caused by infection of the mother during pregnancy or they may be hereditary
Traumatic Cataract Eye injuries may cause cataracts in patients of any age
Secondary Cataract Eye diseases like glaucoma iritis eye tumours and diabetes may cause cataracts
Druginduced Cataract Prolonged treatment with steroid drugs either for local e g allergic conjunctivitis or systemic diseases e g asthma may lead to cataract formation
Symptoms of Cataract
Cataract formation is not associated with signals such as pain redness or tearing The common symptoms are Blurring or dimness of visionFeeling of a film over the eyesSensitivity to light and glareChange in colour of pupil.Double vision dulling of colour sense Cataract cannot be cured by medicines or spectacles Removal of the clouded lens through surgery is the only treatment
Routine method old method
After administering a local anaesthesia a 10 mm incision is made in the eye The cataract lens is removed and it may be replaced by an Aphakic glass The incision is then closed with sutures After the surgery glasses with high power called ophakic spectacles are prescribed to the operated person Intra Ocular lens IOL is a tiny transparent convex lens It is made of polymethyl methacrylate a harmless plastic substance Unlike contact lens an IOL stays permanently in the eye and does not cause irritationAfter administering a local anaesthesia a 10 mm incision is made in the eye The clouded lens is removed and replaced by an IOL and the incision is then closed with sutures The entire procedure takes only 15minutes .Phaco or sutureless surgery with implantation of IOL
After giving a local anaesthesia a 5mm incision is made in the eye The cataract lens is broken into small pieces by a machine with ultrasonic waves and removed with a needle A specially prepared IOL is inserted into the eye and the wound heals without sutures Early surgery can be done so that patient need not wait for the cataract to mature,SmallIncision,No sutures and no need of suture removal,No irritation no watering ,Early return to work ,No need to continue drops for a long time,No need for hospital stay.Even if the patient stays it is only for a short time.Only one postoperative visit ,Stable refraction after one month The ophthalmic surgeon decides whether the patient can undergo phaco or not.
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