초록 ▼

An apparatus and process for applying a synthetic lenticule to the cornea of a human eye is disclosed, the process also contemplating selective reprofiling of the lenticule while it is in place over the cornea. The process involves ablating a shallow peripheral groove in the cornea to receive the pe

An apparatus and process for applying a synthetic lenticule to the cornea of a human eye is disclosed, the process also contemplating selective reprofiling of the lenticule while it is in place over the cornea. The process involves ablating a shallow peripheral groove in the cornea to receive the peripheral edge of the lenticule which is then secured therein with an adhesive, thus leaving the visual axis of the eye undisturbed. The lenticule is placed over the cornea with a unique micromanipulation apparatus and normally under vacuum conditions. A laser delivery system is used to reprofile the lenticule if necessary for refining the refractive power of the lenticule.

대표청구항 ▼

A process for application and adjustable reprofiling of synthetic lenticule to the cornea of the human eye for correcting vision, comprising the steps of: (a) preparing a topographic map of the anterior surface of the cornea; (b) profiling the posterior surface of a synthetic lenticule to closely ma

A process for application and adjustable reprofiling of synthetic lenticule to the cornea of the human eye for correcting vision, comprising the steps of: (a) preparing a topographic map of the anterior surface of the cornea; (b) profiling the posterior surface of a synthetic lenticule to closely match the anterior surface of the cornea, said lenticule being formed of a material that is resistant to invasion by cells and cellular agents in the optical zone and that said lenticule has the capability of being reprofiled through laser ablation and also being constructed so as to correct the patient\s particular refractive error; (c) removing the outer epithelial cell layer from the anterior surface of the cornea; (d) forming a shallow peripheral groove in the cornea, outside the visual axis of the eye; (e) applying adhesive means in said groove; (f) placing the peripheral edge of said lenticule in said groove whereby said lenticule is disposed over the cornea; and (g) ablating by laser predetermined portions of said lenticule for refining its refractive power.