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Lifeline Eye Centre | Cornea Care & Transplant
A damaged or diseased cornea can affect vision and everyday activities. Corneal transplantation can help restore clearer vision in selected patients. But not every patient needs the same type of transplant. Understanding the different cornea transplant procedures can help you have a more informed discussion with your ophthalmologist.
Cornea
Clear Outer Layer
3 Main
Transplant Approaches
Layer-Specific
Treatment Options
Individual
Patient Assessment
The cornea is the transparent, dome-shaped front surface of the eye. It plays an important role in focusing light and maintaining clear vision. When the cornea becomes severely damaged, scarred, swollen or diseased, glasses or contact lenses may not provide sufficient visual improvement.
A cornea transplant, also called keratoplasty, involves replacing some or all of the unhealthy corneal tissue with healthy donor tissue. The type of transplant depends largely on which layers of the cornea are affected.
Modern corneal surgery can sometimes replace only the diseased layer rather than the entire cornea. This can reduce the amount of tissue transplanted and may offer advantages for suitable patients.
01
Penetrating Keratoplasty (PK)
Penetrating keratoplasty is a full-thickness corneal transplant. In this procedure, the surgeon removes the affected central portion of the cornea and replaces it with healthy donor corneal tissue.
May be considered when: multiple layers or the full thickness of the cornea are significantly damaged.
02
Deep Anterior Lamellar Keratoplasty (DALK)
DALK replaces the diseased anterior layers of the cornea while preserving the patient's healthy inner endothelial layer.
May be considered when: the disease primarily affects the front or middle layers while the endothelium remains healthy.
03
Endothelial Keratoplasty
Endothelial keratoplasty replaces the unhealthy inner endothelial layer of the cornea while leaving most of the patient's corneal tissue intact.
May be considered when: the endothelium is damaged or not functioning properly.
DSEK / DSAEK
A thin layer containing donor endothelial cells and supporting tissue is transplanted into the eye to replace dysfunctional endothelial tissue.
DMEK
DMEK uses an even thinner donor tissue layer containing the endothelium and Descemet's membrane. It is a highly specialised form of endothelial transplantation.
Layer-Specific Approach
The goal of endothelial procedures is to treat the unhealthy inner layer while preserving as much of the patient's own cornea as possible.
| Procedure | Main Tissue Replaced | Generally Considered For |
|---|---|---|
| PK | Full-thickness cornea | Extensive or full-thickness corneal damage |
| DALK | Anterior corneal layers | Disease affecting front/middle layers with healthy endothelium |
| DSEK / DSAEK | Endothelial tissue with supporting layers | Diseased or dysfunctional endothelium |
| DMEK | Endothelium and Descemet's membrane | Selected endothelial disorders |
There is no single transplant procedure that is best for everyone. The choice depends on the location and severity of corneal damage, the health of the remaining corneal layers, your overall eye health and the underlying condition.
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Corneal Layer Affected
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Underlying Eye Condition
❤️
Overall Eye Health
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Specialist Assessment
Keratoconus
Advanced keratoconus can cause significant corneal thinning, irregularity and visual impairment.
Corneal Scarring
Deep scars caused by injury, infection or other conditions may interfere with clear vision.
Corneal Dystrophies
Certain inherited corneal disorders can affect transparency and visual function.
Endothelial Disorders
Dysfunction of the corneal endothelium can cause swelling and reduced clarity of the cornea.
Corneal Injury
Significant trauma or damage to the cornea may sometimes require transplantation.
Failed Previous Graft
In selected cases, a repeat corneal transplant may be considered when a previous graft fails.
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Improved Corneal Clarity
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Potential Vision Improvement
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Layer-Specific Treatment
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Preservation of Healthy Tissue
Recovery varies according to the type of transplant, the underlying eye condition and the individual's healing response. Vision may not become clear immediately after surgery and can continue to change during the recovery period.
Follow Your Medication Plan
Use prescribed eye medications exactly as advised by your ophthalmologist.
Attend Follow-Up Visits
Regular examinations help your doctor monitor healing and the health of the graft.
Protect Your Eye
Follow your surgeon's advice regarding eye protection, activities and recovery precautions.
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Specialist Eye Care
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Comprehensive Cornea Evaluation
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Advanced Eye Treatment
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Eye Care in Delhi
If you have been diagnosed with corneal disease, scarring or another condition affecting corneal clarity, consult an ophthalmologist to understand whether corneal transplantation may be appropriate for you.
Q1. What are the different types of cornea transplant?
The main types include penetrating keratoplasty (PK), deep anterior lamellar keratoplasty (DALK) and endothelial keratoplasty. Endothelial procedures include techniques such as DSEK/DSAEK and DMEK.
Q2. Which type of cornea transplant is best?
There is no single best procedure for every patient. The appropriate technique depends on which corneal layers are diseased, the underlying condition and the overall health of the eye.
Q3. What is the difference between DALK and a full cornea transplant?
DALK replaces the diseased anterior layers of the cornea while preserving the patient's healthy endothelium. A penetrating keratoplasty replaces the full thickness of the central cornea.
Q4. What is DMEK cornea transplant?
DMEK is a type of endothelial keratoplasty in which a very thin layer containing donor endothelial cells and Descemet's membrane is transplanted to replace dysfunctional inner corneal tissue.
Q5. Can keratoconus require a cornea transplant?
Advanced keratoconus may sometimes require corneal transplantation when the cornea becomes severely irregular or scarred and other treatment options are no longer sufficient.
Q6. How long does it take to recover from a cornea transplant?
Recovery varies significantly depending on the type of transplant and individual healing. Vision may improve gradually, and regular follow-up appointments are important throughout recovery.
Q7. Is cornea transplant surgery safe?
Corneal transplantation is an established surgical treatment, but like any surgery, it carries potential risks. Your ophthalmologist can explain the expected benefits, risks and suitability of the procedure for your specific condition.
Q8. Where can I get cornea transplant treatment in Delhi?
Lifeline Eye Centre provides comprehensive ophthalmic evaluation and cornea care in Delhi. A specialist consultation can help determine whether corneal transplantation is appropriate and which approach may be suitable.
Medical Disclaimer: This article is intended for general educational purposes and does not replace a professional eye examination, diagnosis or personalised medical advice. The suitability of a particular cornea transplant technique varies from patient to patient and should be determined by a qualified ophthalmologist.
