| An onlay lamellar tissue
was sutured into a prepared annular keratectomy over a de-epithelialized
surface of corneal thinning secondary to corneal melt. Initially it was
covered by a conjunctival graft that was sutured over the onlay transplant
to accelerate re-epithelialization and wound healing. Note the conjunctival
graft was retracted. |
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- A type of lamellar keratoplasty that is used to reinforce thinned
or ectatic corneas
- Unlike inlay lamellar keratoplasty, there will be no anterior stromal
tissue removed from the recipient cornea
- Advantages:
- Less invasive than penetrating keratoplasty
- No risk of rejection
- Can be removed when penetrating keratoplasty is to be done
- Complications include:
- Insignificant peripheral opacities
- Epithelial ingrowth
- Neovascularization of the graft-recipient interface that may
requires graft replacement
- Recurrent erosions
- Persistent epithelial defect
- Graft melt
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