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).
WHEN TO GO FOR CATARACT SURGERY?
The moment cataract begins to disrupt your lifestyle , get it
removed .Do not wait for the cataract to mature , as it leads to more
difficult surgery and impairs your vision.
What Is An Intra Ocular Lens ?
Intra ocular lenses or IOL are the artificial lenses that replace /substitute the natural lens ,which is removed during cataract surgery .Thick glasses after cataract surgery were a common thing in the days before the use of these IOLs .IOLs gave independence from thick glasses of the operated patients .
Recommended treatment For The Cataract
The recommended treatment for the cataract is Phacoemulsification
with implantation .Phacoemulsification has helped to reduce the standard 1 2 mm incision to a less than 2mm self -sealing incision with no sutures or bandages .The location of this incision can further be planned to reduce astigmatism and enhance your vision to minimize the dependence on glasses.
Astigmatism:
Can A Cataract Grow Back ?
No .Blurred vision after months or years of cataract surgery results from clouding of the thin capsular bag membrane that helps keep the lens implant in place.To restore clear vision ,surgeons use a laser to open a visual path through the cloudy membrane .This can be easily removed by laser treatment as a simple outdoor procedure.
When To Plan Cataract Surgery Of The Other Eye ?
Usually both eye surgeries are not done together .If the recovery of first eye is good ,the second eye can be operated even on the next day .It's as per the comfort of the patient and the doctor.
(concluded)
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).
WHEN TO GO FOR CATARACT SURGERY?
The moment cataract begins to disrupt your lifestyle , get it
removed .Do not wait for the cataract to mature , as it leads to more
difficult surgery and impairs your vision.
What Is An Intra Ocular Lens ?
Intra ocular lenses or IOL are the artificial lenses that replace /substitute the natural lens ,which is removed during cataract surgery .Thick glasses after cataract surgery were a common thing in the days before the use of these IOLs .IOLs gave independence from thick glasses of the operated patients .
Recommended treatment For The Cataract
The recommended treatment for the cataract is Phacoemulsification
with implantation .Phacoemulsification has helped to reduce the standard 1 2 mm incision to a less than 2mm self -sealing incision with no sutures or bandages .The location of this incision can further be planned to reduce astigmatism and enhance your vision to minimize the dependence on glasses.
Astigmatism:
What Is Astigmatism?
Astigmatism is a common eye condition that's easily corrected by eyeglasses, contact lenses, or surgery.
Astigmatism is caused by an eye that is not completely round. This is one type of refractive error. Astigmatism occurs in nearly everybody to some degree. For vision problems due to astigmatism, glasses, contact lenses, and even vision correction procedures are all possible treatment options.
Astigmatism is caused by an eye that is not completely round. This is one type of refractive error. Astigmatism occurs in nearly everybody to some degree. For vision problems due to astigmatism, glasses, contact lenses, and even vision correction procedures are all possible treatment options.
What Causes Astigmatism?
Astigmatism is a natural and commonly occurring cause of blurred or distorted vision. The exact cause in not known.
How Soon After The Phaco Surgery
,Will I Be Able To See?
In some cases ,the patient is able to see almost immediately
following the surgery .Although ,most patients experience
clear vision after one or two days.
Will I Need Glasses After Phaco Surgery ?
You may need to wear glasses .If unifocal IOL is used during
surgery ,near vision glasses are generally required.
What is Unifocal IOL
Unifocal IOLs are designed to provide good distance vision.For near vision he/she has to wear glasses. These lenses can be used most for all patients.
What is Multifocal IOL
The latest multifocal IOLs are designed to provide good distance vision, intermediate and near vision. They reduce the patient’s dependence on glasses for routine activities. Unlike conventional IOL it has multiple zones of different focal lengths that bring everything from near to far into clear focus. These lenses can be used only for suitable patients.
Will Activities Have To Be Restricted After
Phaco Surgery ?
Normal activities including walking ,reading
,writing&watching television may be resumed
soon after the surgery.However ,during the
first week after the surgery it is better to avoid
strenuous activities .Driving can be resumed
depending upon the visual recovery of the
patient.There are no diet restrictions at all .
(continued...)
Can A Cataract Grow Back ?
No .Blurred vision after months or years of cataract surgery results from clouding of the thin capsular bag membrane that helps keep the lens implant in place.To restore clear vision ,surgeons use a laser to open a visual path through the cloudy membrane .This can be easily removed by laser treatment as a simple outdoor procedure.
When To Plan Cataract Surgery Of The Other Eye ?
Usually both eye surgeries are not done together .If the recovery of first eye is good ,the second eye can be operated even on the next day .It's as per the comfort of the patient and the doctor.
(concluded)
6 टिप्पणियां:
आँखों की देखभाल नियमित रूप से करना जरुरी है .....शुगर से मरीज को तो ज्यादा ध्यान रखना चाहिए ...बहुत अच्छा लेख ......
धन्यवाद , उपयोगी लेख के लिए ...
सुन्दर प्रस्तुति-
आभार आपका-
.सार्थक व् उपयोगी जानकारी हेतु आभार संजय जी -कुमुद और सरस को अब तो मिलाइए. आप भी जानें संपत्ति का अधिकार -४.नारी ब्लोगर्स के लिए एक नयी शुरुआत आप भी जुड़ें WOMAN ABOUT MAN
बहुत विस्तृत ...
बहुत ही उपयोगी जानकारी ... राम राम जी ...
विस्तृत जानकारी देता हुआ उपयोगी लेख
एक टिप्पणी भेजें