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Amniotic Membrane Replacement

Amniotic membranes have been widely used in tissue engineering and corneal repair for many years.

Corneal stem cells are the "mother" cells of the cornea; they lie deep within a protected area adjacent to the cornea, continually giving birth to new corneal cells to replace aging corneal cells, and to repair corneal injuries.

Severe injuries to the cornea, such as a chemical, fire or radiation burn, can destroy corneal stem cells. So can certain diseases that affect the eye, including some tumors and a handful of disorders such as pterygium. Pterugium may cause astigmatism or damage the central cornea and possibly cause blindness.

In AMT, a few corneal stem cells are first removed from a healthy cornea - either from the patient's other healthy eye or from the cornea of a related donor.

AMT is successfully applied to pterygium surgery and conjunctival surface reconstruction where a conjunctival graft, or natural tissue, is applied tro the treated eye surface.