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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Cornea. 2014 Mar;33(3):280–287. doi: 10.1097/ICO.0000000000000050

Table 3.

Pre- and postoperative visual acuities, MRSE, mean astigmatism magnitude and mean irregularity index following OCT-guided transepithelial PTK.

Preoperative Postoperative p
UDVA (logMAR) 0.71 ± 0.27 0.31 ± 0.16 <0.01
CDVA (logMAR) 0.36 ± 0.17 0.16 ± 0.19 <0.05
UDVA (Snellen) 20/103 (range 20/60 to 20/400) 20/41 (range 20/25 to 20/80) <0.01
CDVA (Snellen) 20/45 (range 20/30 to 20/80) 20/29 (range 20/15 to 20/60) <0.05
MRSE (D) −2.59 ± 2.83 (range −8.625 to +2.25) +1.38 ± 2.37 (range −0.625 to +4.75) <0.01
Mean Astigmatism Magnitude (D) 1.40±1.18 (range 1.0 to 2.25) 1.14±0.83 (range 0.5 to 2.3) ns
Mean irregularity index 4.20 ± 1.88 (range 1.7 to 7.9) 4.41±1.43 (range 2.5 to 7.9) ns