Computed Corneal Topography Health Feed

Anterior most transparent layer of the eye is called cornea. It is an extremely useful layer for refraction and protection of the eye.

Any trauma, foreign body or chemical etc can invade the integrity of this layer and can be invaded by bacteria, fungus or virus, resulting in the corneal ulcer. Sometimes, due to hypoxia induced by contact lenses too can result in a corneal ulcer.

Depending on the clinical presentation, a doctor diagnoses the cause of the ulcer and start the the...more

When a vein in the retina becomes blocked, it's called retinal vein occlusion. This can give you a blurry vision or even sudden permanent blindness in that eye. It's similar to retinal artery occlusion, which is sometimes called an eye stroke. in the retina, arteries and veins cross over each other. Treatment for the complications of retinal vein occlusion may include focal laser treatment if macular oedema is present. Injections of anti-vascular endothelial growth factor (anti-vegf) drugs into ...more

A cataract is a clouding of the normally clear lens of your eye. For people who have cataracts, seeing through cloudy lenses is a bit like looking through a frosty or fogged-up window.

Clouded vision caused by cataracts can make it more difficult to read, drive a car (especially at night) or see the expression on a friend's face.

Most cataracts develop slowly and don't disturb your eyesight early on. But with time, cataracts will eventually interfere with your vision.

...more

Cataract surgery is performed to remove the lens of the eye and replace it with an artificial one. The surgery is undertaken to cure cataract, which makes the lens of the eyes cloudy, making it difficult to see. The surgery is not considered to be a major one and is performed on an outpatient basis, meaning that the patient can go home the very same day without having to spend the night at the hospital. The procedure is very normal and is undertaken when cataract starts to affect the day-to-day ...more

Currently there is no cure for keratoconus. It is a lifelong eye disease. Thankfully, however, most cases of keratoconus can be successfully managed. For mild to moderate keratoconus, scleral contact lenses made of advanced rigid gas permeable lens materials typically are the treatment of choice.

Refraction is a test for an eye examination, which measures prescription for eyeglasses or contact lenses for individuals. The test can be performed by either an ophthalmologist or optometrist or in layman terms, an eye doctor.

Procedure for the test
In this test, the individual sits on a chair, which has a special device attached to it, called the refractor or phoropter. The individual has to look through the device and properly focus on an eye chart which is exactly 6 meters or 20...more

The cornea is the front layer of eyes that helps in focusing light to see objects clearly. In a cornea transplant surgery, the damaged cornea tissue is replaced by a healthy donor tissue. In medical terms, it is known as keratoplasty for corneal graft. The cornea needs to be clear, smooth, and healthy for a good vision. An unhealthy cornea leads to blurry vision.

Before transplanting cornea, doctors also try to treat the problem with other methods. However, if the condition is not gett...more

The retina is the third and innermost layer of the eye that catches the light and helps us focus on things so that we can see clearly. This is one of the most important parts of the eye. The retina is made up of a number of light-sensitive cells that are connected to nerve fibres. These nerve fibres help in transmitting the images formed through neuro-impulses that reach the brain. There are many conditions and diseases that can affect this part of the eye.

Read on to know more.
<...more

The most common vision problems are shortsightedness and farsightedness. Shortsightedness is when a person sees close objects clearly while distant objects appear blurry. It is more common than farsightedness and affects about 70% of the Asian population.

When there is a refractive issue, the prescription usually has a plus/minus with it and also a number. A minus symbol is used to represent shortsightedness; the greater the number of the glasses, the higher the shortsightedness. High...more

Leukocoria (also white pupillary reflex) is an abnormal white reflection from the retina of the eye. Leukocoria resembles eyeshine, but leukocoria can occur in humans and other animals that lack eyeshine because their retina lacks a tapetum lucidum. Large reviews have shown that leukocoria is the most common presenting sign (> 50% of cases). As the disease can progress rapidly, retinoblastoma is considered an ocular emergency. Fortunately, with early diagnosis and treatment, more than 98% of chi...more