Early Refractive and Clinical Outcomes of High-Myopic Photorefractive Keratectomy as an Alternative to LASIK Surgery in Eyes with High Preoperative Percentage of Tissue Altered

Table 4

Large published series of photorefractive keratectomy in high myopia.

Series	Number of eyes	Surgery dates	Excimer laser platform	UCVA (%)		Spherical equivalent error		CDVA line change		Haze	MMC used
				>20/20	>20/40	±0.50 D	±1.00 D	Gain ≥1	Loss ≥2
Our series	187	2013	WaveLight EX500	65.5%	99.4%	71.0%	93.0%	7.4%	0.0%	4.8%	Yes
Alio et al. [12]	267	1992–5	VISX 20/20	10.0%	63.0%	40.0%	58.0%	52%	11.6%	8.6%	No
Cennamo et al. [13]	452	1991–8	Aesculap	—	49.0%	—	49.8%	—	15.7%	∼70%	No
Steinert and Hersh [14]	210	<1998	Summit Apex	29–35%	71–74%	22–40%	47–68%	—	—	—	No

10-year follow-up. UCVA = uncorrected visual acuity; CDVA = corrected distance visual acuity; D = diopters; MMC = mitomycin-C. The WaveLight EX500 is manufactured by Alcon Laboratories, Inc., Fort Worth, TX, USA. The VISX 20/20 is manufactured by VISX, Inc., Santa Clara, CA, USA. The Aesculap is manufactured by Aesculap-Meditec, Jena, Germany. The Summit Apex is manufactured by Summit Technology, Inc., Waltham, MA, USA.