CPT® Code 65710

An anterior lamellar keratoplasty is a specialized surgical procedure aimed at replacing a diseased or scarred portion of the anterior layer of the cornea while preserving the underlying healthy corneal tissue. This technique is particularly beneficial for patients with conditions affecting only the superficial layers of the cornea, allowing for a more selective approach to corneal transplantation. The procedure involves precise surgical techniques, including trephination, which is the process of creating a circular incision in the cornea to a specific depth of 400 micrometers. This depth is critical as it ensures that only the affected layers are removed, minimizing damage to the surrounding healthy corneal structure. The use of a 25-gauge bent needle facilitates the injection of air to create a 'big bubble' within the cornea, which aids in the separation of the deeper stromal layers from Descemet's membrane, thus allowing for a more controlled dissection of the corneal tissue. The procedure is meticulously performed to ensure optimal outcomes, including the successful integration of the donor cornea into the recipient's eye, ultimately improving visual function and quality of life for patients suffering from corneal diseases.