Use of SoftShield® collagen lenses in feline corneal sequestrum surgery

Abstract

Feline corneal sequestrum develops secondary to the quantitative or qualitative deficit of the lacrimal tear film or represents a sequela in the healing process of corneal ulcers. The classic surgical approach is keratectomy and corneal-conjunctival flap for which not only special equipment is required (surgical microscope, cornea surgery kit), but also good knowledge of the technique of corneal sutures. For 32 cats diagnosed with corneal sequestrum (Persian, Exotic Shorthair, British Shorthair and Domestic Shorthair), a new surgical protocol was performed: keratectomy, application of the SoftShield® collagen contact lens and third eyelid flap. The sutures were maintained for three weeks. The healing of the cornea was achieved with minimal scarring, compared to the cases in which the corneal-conjunctival flap was performed. This surgical technique for feline corneal sequestrum can be performed by any veterinarian because it does not require special equipment or knowledge of corneal suture techniques.