Skip to main content

Advertisement

Table 3 Best corrected distance visual acuity (BCDVA) before and after every phototherapeutic keratectomy

From: Multiple phototherapeutic keratectomy treatments in a Chinese pedigree with corneal dystrophy and an R124L mutation: a 20-year observational study

Number of PTK Preoperative BCDVA (mean value) Postoperative BCDVA (mean value) Sample size(n) Estimate of mean difference Standard error P value (linear mixed model)
1st 1.12 ± 0.15 0.36 ± 0.07 10 −0.758 0.043 < 0.001
2nd 1.24 ± 0.13 0.44 ± 0.15 10 −0.798 0.052 < 0.001
3rd 1.26 ± 0.11 0.37 ± 0.08 7 −0.883 0.056 < 0.001
4th 1.30 0.40 1