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What Is Lamellar Keratoplasty?

Lamellar keratoplasty is a corneal transplant technique that replaces only the diseased layers of the cornea rather than the entire thickness. Depending on the problem, the surgeon may replace the front layers, the back layers, or specific combinations of tissue. Preserving healthy layers can reduce rejection risk and improve structural strength compared with full-thickness transplantation. The exact subtype is chosen based on which corneal layer is damaged.

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What Is Lamellar Keratoplasty?

Lamellar keratoplasty is a corneal transplant technique that replaces only the diseased layers of the cornea rather than the entire thickness. Depending on the problem, the surgeon may replace the front layers, the back layers, or specific combinations of tissue. Preserving healthy layers can reduce rejection risk and improve structural strength compared with full-thickness transplantation. The exact subtype is chosen based on which corneal layer is damaged.

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Types of Lamellar Keratoplasty

Lamellar keratoplasty is broadly grouped into anterior procedures and posterior procedures based on the tissue replaced. Anterior lamellar techniques replace the epithelium and stroma while keeping the patient's own Descemet's membrane and endothelium. Endothelial keratoplasty replaces the diseased endothelium and Descemet's membrane while leaving most of the front cornea intact. Your surgeon will explain which layer is responsible for your symptoms and imaging findings.

  • Anterior lamellar keratoplasty
  • Endothelial keratoplasty
  • Procedure choice based on the diseased layer

When It Is Recommended

Lamellar approaches are often preferred when disease is limited to specific layers, because they can target the problem more precisely. Anterior lamellar surgery is used for stromal scars, stromal dystrophies, and keratoconus when the endothelium is healthy. Endothelial keratoplasty is used for endothelial failure such as Fuchs endothelial corneal dystrophy or pseudophakic bullous keratopathy. The goal is to restore clarity while keeping as much healthy cornea as possible.

Benefits Compared With Full-Thickness Transplant

Because lamellar surgery preserves healthy tissue, it can offer faster healing and fewer full-thickness wound risks in many cases. Keeping the patient's own endothelium in anterior lamellar surgery lowers the risk of endothelial rejection. Posterior lamellar techniques often have smaller incisions and faster visual rehabilitation than penetrating keratoplasty. Outcomes still depend on diagnosis, ocular surface health, and long-term follow-up.

Risks and Recovery Considerations

Risks vary by subtype but can include graft detachment in endothelial procedures, interface haze in anterior procedures, infection, elevated eye pressure, and refractive changes. Visual recovery can be faster than full-thickness grafting, but it is still gradual and may require glasses or contact lenses. Long-term drops and regular monitoring are common, especially to manage inflammation and eye pressure. Contact your eye doctor promptly for new pain, redness, or sudden vision decrease.

FAQs on Lamellar Keratoplasty

Is lamellar keratoplasty always better than penetrating keratoplasty?

Not always. Lamellar approaches are excellent when disease is limited to certain layers, but full-thickness transplantation may be needed when multiple layers are damaged or when the eye has complex structural issues. The best procedure depends on your diagnosis, corneal anatomy, and surgeon's assessment.

Can lamellar keratoplasty treat keratoconus?

Yes, in many cases. Deep anterior lamellar keratoplasty is commonly used for keratoconus when the endothelium is healthy, especially when scarring or contact lens intolerance limits other options. Earlier keratoconus is often managed with specialty lenses and corneal cross-linking rather than transplantation.

Does lamellar surgery have a lower rejection risk?

Often, yes, but it depends on the type. Anterior lamellar procedures retain the patient's own endothelium, which reduces the risk of endothelial rejection. Endothelial keratoplasty still uses donor endothelium, so rejection is possible, but reported rates are generally lower than full-thickness transplants.

How long is the recovery after lamellar keratoplasty?

Recovery depends on the subtype and the eye's overall health. Endothelial keratoplasty often improves vision within weeks to months, while anterior lamellar procedures may take longer if sutures are used. Your surgeon will set expectations based on the planned technique and your healing response.

References

Cornea Transplantation. StatPearls (National Library of Medicine, National Institutes of Health). https://www.ncbi.nlm.nih.gov/books/NBK539690/. Date Accessed February 4 2026.

Advancements in Keratoplasty: Exploring Newer Techniques and Imaging Modalities. Saudi Journal of Ophthalmology (Lippincott Williams & Wilkins). https://journals.lww.com/sjop/fulltext/2025/10000/advancements_in_keratoplasty__exploring_newer.7.aspx. Date Accessed February 4 2026.

Lamellar Keratoplasty Using Microkeratome-Assisted Anterior Lamellar Graft. PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC10286843/. Date Accessed February 4 2026.

Microkeratome-Assisted vs Femtosecond Laser-Assisted Superficial Anterior Lamellar Keratoplasty for Superficial Corneal Opacities. PubMed Central. https://pmc.ncbi.nlm.nih.gov/articles/PMC12356419/. Date Accessed February 4 2026.

Deep Anterior Lamellar Keratoplasty Using Dehydrated Corneas in Fungal Keratitis. American Journal of Ophthalmology. https://www.sciencedirect.com/science/article/pii/S016164202300934X. Date Accessed February 4 2026.