Ultraviolet femtosecond laser creation of corneal flap.

Purpose: To study parameters for ocular femtosecond laser surgery in terms of process efficiency and safety aspects using ultraviolet (UV) femtosecond laser pulses.

Methods: Studies on corneal surgery and flap processing on enucleated porcine eyes were performed using a newly developed ytterbium-doped gain media laser source. Ultraviolet femtosecond laser pulses centered at a wavelength of 345 nm and working at a repetition rate of 100 kHz were generated by the third harmonics of the 1035-nm fundamental wavelength.