Cornea Tips

While red bloodshot eyes may look worrisome at first sight, it is not a cause for concern all the time. There are benign, short-lasting bouts that will disappear on their own to serious medical reasons that could require intervention. Listed below are some common causes and ways to manage red eyes.

Conjunctivitis- The most common cause of red or pink eye is conjunctivitis- infection of the membrane covering the sclera. The blood vessels are irritated and give the eye a red hue. This is ...more

Keratoconus is the thinning and bulging of the cornea due to weakening of the bonds between the collagen layers in its structure. The normally round cornea becomes thin and cone-shaped, and bulges out, deflecting the light entering the eye leading to a distorted and blurry vision. While it has a genetic tendency in some instances, it can also be produced by vigorous and long term eye rubbing especially in people with chronic eye allergy.

The diagnosis is suspected on clinical examinatio...more

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

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

Astigmatism is an eye condition where there is an imperfection in the cornea's curvature. The cornea and lens are smooth and equally curved in all directions, which helps to focus the light rays to the retina. But if there is an imperfection in the curvature, then you will suffer from a refractive error. Astigmatism is not an eye disease. It is simply a condition where the eye is not able to focus the light.

CAUSES:

Irregular shape of the cornea is the main cause for astigmati...more

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

LASIK or laser in situ keratomileusis, is a form of corrective surgery that help patients who are suffering from nearsightedness (Myopia), farsightedness (Hypermetropia) and even astigmatism (cylindrical power in glasses). This procedure aims at correcting the shape of the cornea, which is the transparent layer that lines the front of the eye. Through this procedure, the cornea is reshaped so that the retina receives a focused light.

So what are the health tips for people going through ...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.
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