Partial Corneal Transplants: Types, Benefits, and Potential Risks
Why the Shift Toward Partial Transplants?
Two decades of research have proven that transplanting only the affected layers — rather than the entire cornea — significantly reduces rejection risk and delivers better visual outcomes in suitable cases.
DALK — Deep Anterior Lamellar Keratoplasty
The diseased anterior layers of the cornea are removed while the patient's healthy endothelium is preserved. The major advantage: endothelial rejection risk is virtually zero because you keep your original endothelium. Suitable for keratoconus and anterior corneal scars.
DMEK and DSAEK — Endothelial Keratoplasty
Only the very thin endothelial layer is replaced without disturbing the rest of the cornea. Visual outcomes are excellent and recovery is significantly faster. DMEK delivers sharper vision than DSAEK but demands superior surgical expertise.
Comparing the Three Types
PKP for deep, full-thickness scars; DALK for keratoconus and anterior scars with healthy endothelium; DMEK/DSAEK for Fuchs dystrophy and isolated endothelial damage.
The choice of transplant type is determined by the surgeon after a thorough evaluation of your case. Contact Dr. Ahmed Shaarawy's clinic for a specialist opinion.
Do you wake up with foggy vision?
Corneal edema symptoms as you actually see them
Endothelial dystrophy (Fuchs / inner-cell loss) causes foggy vision that's worst in the morning and improves slightly through the day. Drag the divider to see what patients experience.
Driving at night
Soft halos and glare around lights — especially in low-light conditions
Read this text clearly
A clear inner cornea keeps vision crisp
Read this text clearly
A clear inner cornea keeps vision crisp
Reading
Foggy as if looking through a misted window — worst in the morning
Eye chart
Uniformly blurred letters — improves slightly through the day but never sharpens
DMEK and DSAEK restore transparency with rapid recovery
Have a related case?
Send your topography, OCT, or symptoms to Dr. Shaarawy. We respond in English within 24 hours.