What is cornea?

The cornea is the clear, dome-shaped surface that covers the front of the eye

What is corneal ulcer?

It is the wound in the cornea due to trauma or infection.

What is keratoconus?

Keratoconus is a progressive disease in which the normally round cornea thins and begins to bulge into a cone-like shape. This cone shape deflects light as it enters the eye causing distorted vision.

What causes keratoconus?

Collagen fibers help hold the cornea in place and keep it from bulging. When these fibers become weak the cornea becomes progressively more cone shaped.

What are the symptoms of keratoconus?

Blurredand distortedvision,frequent change in glass prescription.

How keratoconus is diagnosed?

By slit-lamp examination corneal thinning can be observed. Corneal topography is also useful in detecting early keratoconus and allows following its progression.

Can keratoconus be treated?

Mild form of keratoconuscan be corrected byeyeglasses orRGP contact lenses. But severe forms cannot be corrected by them.

What is C3R?

C3R stands for CORNEAL COLLAGEN CROSSLINKING with riboflavin C3R is a keratoconus treatment.

Will keratoconus progressive after C3R?

It depends on the nature of condition,C3R helps to control the progress but cannot cure them completely .close follow up is required .

What is the cause for eye allergy?

The most common airborne allergens that cause eye allergies are pollen, mold, dust and pet dander.Eye allergies also can be caused by reactions to certain cosmetics or eye drops that contain preservatives.It may be seasonal or perennial.

How to prevent eye allergy?

Eye allergy can be prevented by avoiding exposure to common allergens by wearing sun goggles while going outside during allergy season, avoiding contact with pets and avoid using cosmetics and drops causing allergy.

Can eye allergy be cured?

Prevention is always better than cure. The first approach in managing eye allergy is to avoid allergens.

Stay indoors when allergens are at peak

Wear sunglasses when going out

Avoid rubbing eyes as this might worsen the symptoms

Keep windows closed and use ac at home

Wash bed sheets frequently in hot water

Mop the floors rather than dust sweeping

Avoid contact with pets

Washing hands often especially before and after touching eyes

How allergy /red eye is Treated ?

Artificial tears: help to wash out the debris and lubricate the eyes.

Decongestants: help reduce the redness. Not suitable for prolonged use since they cause rebound congestion.

Anti-histamines : help reduce itching.

Mast cell stabilizers: used to prevent allergy.

Corticosteroids: used in the case of severe allergy.

Immunotherapy : if they are non-responsive to steroids then immune modulators are given.

IS EYE infection is contagious ?

Eye infection is caused by a virus or bacteria, the infected person can be contagious for several days to several weeks once symptoms (itchy, watery eyes; with or without eye discharge) appear.

How long eye infection last?

If the infection is caused by a common viral infection and no other complications occur, then your eyes should clear up within a few days to two weeks.

Infection also can be caused by bacterial conjunctivitis, which — even with treatment such as prescription antibiotic eye drops — can last up to a month or longer. However, with this type of infection, people should no longer be contagious 24 hours after antibiotic treatment begins.

Can I send my child to school with infected eyes?

No ,infection is contagious .it is preferable to stay indoor as it may spread to other kids in school.

I have difficulty in seeing bright light ? What should I do ?

During infection your cornea( transparent part in front ) is affected which makes you more sensitive to bright light .it will be difficult for you to face bright light especially while driving .Its better to avoid outdoor activities or wear a sunglasses to avoid discomfort .

My family member also got infection ,can he use the same eye drops which was prescribed to me?

No, infection is caused by many organisms like bacteria ,virus , fungal . all commonly show redness symptoms but treatment and selection of eye drops differ for each case.seek your doctor advice and use drops according to prescription.

I have blurred vision even after infection is cured? is there any serious problem ?

No,due to infection your cornea may be affected deeply . It takes time to heal and restore the normal vision back .consult your cornea specialist in case of doubt and emergency .

What is corneal blindness?

Cornea, is the clear front surface of the eye which allows light to enter the eye. Vision could be markedly reduced or lost if the cornea becomes cloudy or scarred. This is known as corneal blindness.

What is a corneal transplant?

A corneal transplant is a surgical procedure to replace part of your cornea with corneal tissue from a donor. The cornea is the transparent, dome-shaped surface of your eye. This surface is responsible for focusing light much like the lens of a camera. The cornea must be clear and regular because it accounts for a large part of your eye’s focusing power.

Where does the donor tissue come from?

Corneas are sourced from regional “eye banks.” The donor tissue is rigorously inspected for suitability and safety.

What are the reasons for a corneal transplant?

Transplants may be performed to restore vision by replacing scarred, diseased or physically distorted corneal tissue with clear, non-distorted healthy tissue. Often times, these are typically caused by Keratoconus, trauma or infections.

What is the risk of transplant failure?

Corneal rejection is uncommon. Rarely, a loss of transparency occurs due to rejection or repeated eye surgeries. If this occurs, another procedure may be performed at the discretion of your surgeon.

Most corneal transplants last well beyond 10 years. Corneal transplant patients require bi-annual ophthalmic checkups to ensure optimal eye health.

How soon does my vision become functional?

This varies from patient to patient, contingent upon the surgical technique employed to execute the procedure and achievable pre-operative vision.

The new femtosecond laser technique (IEK), offers most patients the ability to achieve vision for limited function, without contacts or glasses, within 2 to 3 weeks.

At 6 to 7 months after surgery, when some or all of the sutures have been removed, most patients may achieve 20/40 or better vision with glasses or contacts.

The non-laser technique has a much longer recovery period. A similar outcome may be achieved at 12-18 months.

When can I resume normal activities?

This varies from patient to patient. In general, it is safe to resume normal non-contact physical activities, like gym, yoga, etc., within 1 month.

Will my eye color change?

No, your eye color stays exactly the same. The transplant involves only the transparent clear cornea and not the colored part of the eye (iris).


Mahathma Eye Hospital Private Limited
No. 6, Seshapuram,
Tennur, Tiruchirappalli-620 017.
Phone : 91-431-2740494 , 2740494, 2741198

Opening Hours

Mon-Fri 8.00 AM To 7.00 PM
Saturday 8.00 AM To 7.00 PM
Sunday 24 / 7 Emergency calls

For Emergency


93447 77411

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