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Fig. 1 | BMC Ophthalmology

Fig. 1

From: Comparison between Wavefront-optimized and corneal Wavefront-guided Transepithelial photorefractive keratectomy in moderate to high astigmatism

Fig. 1

Visual outcomes after WFO and CWFG trans-PRK in moderate to high astigmatism. (a) Cumulative 6-months postoperative uncorrected distance visual acuity (UDVA) and preoperative corrected distance visual acuity (CDVA). Snellen line changes in postoperative UDVA (b) and CDVA (c), relative to preoperative CDVA values, are shown. The accuracy of the spherical equivalent refraction (SEQ) to the intended target (d), and attempted versus achieved change in SEQ (e) at postoperative 6 months are shown. The relative distribution of preoperative and postoperative 6-months cylinder (f) and target-induced versus surgically induced astigmatism (g) at postoperative 6 months are shown. (h) The refractive astigmatism angle of error distribution at postoperative 6 months. Data are presented as mean ± standard deviation. WFO, wavefront-optimized; CWFG, corneal wavefront-guided; trans-PRK, transepithelial photorefractive keratectomy

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BMC Ophthalmology

ISSN: 1471-2415

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