Femtosecond-assisted keratopigmentation for functional and cosmetic restoration in essential iris atrophy

Demonstration of femtosecond-assisted KTP technique. The intrastromal tunnel was created using the 60 kHz femtosecond laser. Two self-sealing incisions were done at the 10 and 2 o’clock positions with a 1.0 mm calibrated knife. The atrophic parts of the iris were cut using scissors. The intralamellar femtosecond tunnel was opened and widened to the external border of the cornea using the lamellar dissector (KTP corneal dissector). An appropriate mineral micronized brown color pigment was injected into the tunnel and the peripheral dissected cornea with a 27-gauge cannula.