Long term followup of photorefractive keratectomy with adjuvant use of mitomycin C.

Purpose. To study the long term refractive and visual outcomes of photorefractive keratectomy (PRK) with intraoperative application of mitomycin C (MMC). Methods.

Effect of excimer laser repetition rate on outcomes after photorefractive keratectomy.

Purpose: To compare the refractive outcomes after photorefractive keratectomy (PRK) for low to moderate myopic corrections using 2 excimer lasers with different repetition rates (200 Hz and 400 Hz).

Setting: University refractive surgery center.

Methods: This retrospective study included all consecutive patients who underwent PRK using the 200 Hz or the 400 Hz Allegretto laser platform (WaveLight Laser Technologie AG).

Long-term results of thin corneas after refractive laser surgery.

Purpose: To report the long-term refractive results of photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) in patients with thin corneas.

Design: A long-term, retrospective, non-randomized follow-up study.

Methods: Sixty-three patients (124 eyes) (28 males and 35 females), who had a preoperative central corneal thickness (CCT) of less than 500 microns and completed at least one year of follow-up examinations after surgery.