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GLAUCOMA

DIABETES & EYE

CATARACT

COMPUTER VISION SYNDROME

NUTRITION AND EYE

 

GLAUCOMA

Glaucoma also known as Kala motia, Kanchbind or Kala pani –Is an disease affecting people above the age of 40yr .Intra ocular pressure or IOP increases . It is often confused with cataract and thus neglected.

GLAUCOMA SYMPTOMS

Glaucoma often is called the "silent thief of sight," because most types typically cause no pain and produce no symptoms until noticeable vision loss occurs. For this reason, glaucoma often progresses undetected until the optic nerve already has been irreversibly damaged, with varying degrees of permanent vision loss. But with acute angle-closure glaucoma, symptoms that occur suddenly can include blurry vision, halos around lights, intense eye pain, nausea and vomiting. If you have these symptoms, make sure you see an eye care practitioner or visit the emergency room immediately so steps can be taken to prevent permanent vision loss.

DIAGNOSIS, SCREENING AND TESTS FOR GLAUCOMA

During routine eye exams, a tonometer is used to measure your intraocular pressure, or IOP. An abnormally high IOP reading indicates a problem with the amount of fluid (aqueous humor) in the eye. Either the eye is producing too much fluid, or it's not draining properly. Normally, IOP should be below 21 mmHg If your IOP is higher than 30 mmHg, your risk of glaucoma damage is 40 times greater than someone with an IOP of 15 mmHG or lower. Other methods of monitoring glaucoma involve imaging of the eye's optic nerve and internal structures (scanning laser polarimetry or SLP, optical coherence tomography or OCT, Visual field testing is a way for your eye doctor to determine if you are experiencing vision loss from glaucoma. Visual field testing involves staring straight ahead into a machine and clicking a button when you notice a blinking light in your peripheral vision. The visual field test may be repeated at regular intervals Gonioscopy is another test done to evaluate the angle of the eye.

TYPE OF GLAUCOMA

The two major types of glaucoma are chronic or primary open-angle glaucoma (POAG) and acute angle-closure glaucoma. Glaucoma can be very destructive to your vision; in fact, it's the second-leading cause of blindness in India.
Primary open-angle glaucoma. This common type of glaucoma gradually reduces your peripheral vision without other symptoms. But by the time you notice it, permanent damage has already occurred.
Angle-closure glaucoma. Angle-closure or narrow angle glaucoma produces sudden symptoms such as eye pain, headaches, halos around lights, dilated pupils, vision loss, red eyes, nausea and vomiting.

GLAUCOMA TREATMENTS

Treatment can involve glaucoma surgery, lasers or medication, depending on the severity. Eye drops with medication aimed at lowering IOP usually are tried first to control glaucoma. Because glaucoma often is painless, people may become careless about strict use of eye drops that can control eye pressure and help prevent permanent eye damage.

DIABETES & EYE

How can diabetes affect eye?

Treatment can involve glaucoma surgery, lasers or medication, depending on the severity. Eye drops with medication aimed at lowering IOP usually are tried first to control glaucoma. Because glaucoma often is painless, people may become careless about strict use of eye drops that can control eye pressure and help prevent permanent eye damage.

What is diabetic retinopathy?

Retina is the layer at the back of the eye that is sensitive to light. Diabetes affects the small vessels of the retina in the eye. There are various stages of diabetic retinopathy:
Non-proliferative or background diabetic retinopathy: When blood vessels in the retina are damaged, they can leak fluid or bleed
Macular edema: The fluid and exudates collects in the macula (the part of the retina that allows us to see fine details), thus decreasing the vision
Proliferative diabetic retinopathy: This is an advanced stage of diabetic retinopathy, where the blood supply of retina is compromised. In response to this, new fragile blood vessels grow on the surface of the retina (neovascularization). These new vessels are very fragile and bleed easily. These may lead to serious vision problems if they bleed into the vitreous (the clear, jelly-like substance that fills the center of the eye) which is known as vitreous hemorrhage. This prevents the light from reaching the retina and thus can blur the vision. The new blood vessels and the bleed into the vitreous can also cause scar tissue to develop, which can pull the retina away from the back of the eye. This is known as retinal detachment, and can lead to blindness if untreated.

Can something be done to prevent diabetic retinopathy?

There is no treatment that can prevent diabetic retinopathy altogether But it has been proven that a good control of diabetes can delay and slow down the rate of progress of diabetic retinopathy and its complications. Besides a good control of blood sugar, one must exercise regularly, keep the blood pressure under control, avoid smoking, and avoid obesity.

How frequently should I get my eye examined?

If you have diabetes, you should get a yearly examination with your ophthalmologist.

What is fluorescein angiography ?

It is test in which a series of photographs of the retina are taken with the help of a special camera. These photographs are taken after giving the patient an injection of a yellow dye. This dye reaches the retina through the blood stream and helps in seeing the blood vessels of retina more clearly. This test helps the doctor to determine which areas to be treated with laser.
 
 

CATARACT

Cataract is the clouding of the natural lens in the eye. It is more common after the age of 45 years, however it can occur at any age.

CATARACT SYMPTOMS AND SIGNS

A cataract starts out small and at first has little effect on your vision. You may notice that your vision is blurred a little, like looking through a cloudy piece of glass. A cataract may make light from the sun or a lamp seems too bright or glaring. Colors may not appear as they once did. If you think you have a cataract, contact for an exam to find out for sure.

WHAT CAUSES CATARACTS?

No one knows for sure why the eye's lens changes as we age, forming cataracts. Many studies suggest that exposure to ultraviolet light is associated with cataract development, so eye care practitioners recommend wearing sunglasses and a wide-brimmed hat to reduce your exposure. Other studies suggest people with diabetes are at risk for developing a cataract. The same goes for users of steroids, diuretics and major tranquilizers, but more studies are needed to distinguish the effect of the disease from the consequences of the drugs themselves. Some eye care practitioners believe that a diet high in antioxidants, such as beta-carotene (vitamin A), selenium and vitamins C and E, may forestall cataract development. Meanwhile, eating a lot of salt may increase your risk. Other risk factors include cigarette smoke, air pollution and heavy alcohol consumption.

CATARACTS TREATMENT

Think about surgery when your cataracts have progressed enough to seriously impair your vision and affect your daily life. Many people consider poor vision an inevitable fact of aging, but cataract surgery is a simple, relatively painless procedure to regain vision. Cataract surgery is very successful in restoring vision. In fact, it is the most frequently performed surgery world wide. During surgery, the surgeon will remove your clouded lens and in most cases replace it with a clear, plastic intraocular lens (IOL).
Phacoemulsification - popularly known as laser surgery is done through a 2mm incision tunnel and is total painless. There is no need to stay in the hospital and you can go home in 2hrs. You can start regular work in 3-4days. There are no precautions or restrictions and one can take normal bath. An intraocular lens (IOL) is implanted in the eye in place of the clouded natural lens. At Eye site we offer a wide variety of IOLs such rigid, Foldable, Mulitifocal IOLs. One may not need any type of glasses after multifocal IOL.
 
 

COMPUTER VISION SYNDROME

More than 3hrs of computer use can lead to CVS. Common symptoms are pain in eyes, watering, irritation in eyes, headache etc. This mainly because of dryness caused by radiations coming out of screen and fatigue of eye muscles
Prevention is –
Taking small breaks
Using an eye friendly monitor
Using a lubricant eye drop

NUTRITION AND EYE

Vitamin A,C and antioxidants are good for eye.All seasonal vegetables, fruits and dairy products are good for eye. Non –vegetarian food specially fish, white of egg etc are also good.
Sprouts of all king should be taken row
Protect your eyes from Ultra –violet light and bright sun light