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Table 4 OQAS results obtained preoperatively and 6 months postop

From: Mutual comparative analysis: a new topography-guided custom ablation protocol referencing subjective refraction to modify corneal topographic data

  Preoperatively
(Mean ± SD)
Postoperatively
(Mean ± SD)
pa
OSI 0.50 ± 0.45 0.50 ± 0.46 0.662
MTF 33.51 ± 9.72 32.79 ± 9.52 0.466
SR 0.22 ± 0.23 0.22 ± 0.19 0.830
  1. a Paired t-test
  2. OQAS= Optical Quality Analysis System II, OSI= objective scattering index, MTF= modulation transfer function, SR= Strehl ratio