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Table 2 Patient demographics and ocular biometric parameters

From: Ocular biometry with swept-source optical coherence tomography-based optical biometer in Japanese patients with EYS-related retinitis pigmentosa: a retrospective study

  Overall EYS-related RP Other RP P value*
  44 patients 18 patients 26 patients  
Age (years), median [IQR] 51.0 [20.0] 49.5 [18.0] 51.0 [29.0] 0.748
Female, n (%) 23 (52.3) 12 (66.7) 11 (42.3) 0.112
  86 eyes 35 eyes 51 eyes  
Cataract, n (%) 45 (52.3) 19 (54.3) 26 (51.0) 0.829
PSC, n (%) 13 (15.1) 10 (28.6) 3 (5.9) 0.045*
Biometric parametersa
AL (mm) 24.2 (23.9–24.5) 24.3 (23.8–24.8) 24.1 (23.9–24.4) 0.610
CCT (μm) 526.0 (520.6–531.4) 515.4 (506.9–523.9) 536.6 (529.8–543.4)  < 0.001*
ACD (mm) 3.05 (2.98–3.13) 3.05 (2.92–3.17) 3.06 (2.98–3.14) 0.861
AQD (mm) 2.53 (2.45–2.60) 2.53 (2.40–2.66) 2.52 (2.44–2.61) 0.922
LT (mm) 4.48 (4.39–4.57) 4.53 (4.38–4.67) 4.44 (4.32–4.55) 0.357
WTW (mm) 12.1 (12.0–12.1) 12.1 (12.0–12.2) 12.0 (11.9–12.1) 0.349
Keratometry
R1 (mm) 7.84 (7.79–7.89) 7.82 (7.74–7.89) 7.87 (7.80–7.93) 0.316
R2 (mm) 7.56 (7.51–7.61) 7.52 (7.43–7.60) 7.61 (7.56–7.66) 0.072
PR1 (mm) 6.99 (6.94–7.04) 6.96 (6.88–7.04) 7.02 (6.96–7.08) 0.208
PR2 (mm) 6.61 (6.56–6.67) 6.55 (6.45–6.65) 6.68 (6.63–6.73) 0.024*
TR1 (mm) 7.83 (7.78–7.88) 7.81 (7.74–7.88) 7.86 (7.80–7.92) 0.331
TR2 (mm) 7.57 (7.52–7.62) 7.52 (7.44–7.61) 7.61 (7.55–7.67) 0.102
Astigmatism
Standard KA (D) 1.59 (1.40–1.78) 1.75 (1.44–2.06) 1.43 (1.22–1.64) 0.093
PCA (D) -0.33 (-0.37 to -0.29) -0.37 (-0.42 to -0.31) -0.29 (-0.34 to -0.25) 0.061
TCA (D) 1.52 (1.33–1.70) 1.65 (1.35–1.96) 1.38 (1.18–1.58) 0.145
  1. Abbreviations: RP, retinitis pigmentosa, IQR, interquartile range, PSC, posterior subcapsular cataract, AL, axial length, CCT, central corneal thickness, ACD, anterior chamber depth, AQD, aqueous depth, LT, lens thickness, WTW, white to white, R1 and R2, standard keratometry corneal curvature radius at the flattest and steepest meridians, respectively, PR1 and PR2, posterior corneal curvatures radius at the flattest and steepest meridian, respectively, TR1 and TR2, total keratometry corneal curvature radius at the flattest and steepest meridians respectively KA, keratometric astigmatism PCA. posterior corneal astigmatism TCA, total corneal astigmatism
  2. *Statistically significant at the P < 0.05 level (generalized estimating equation model)
  3. aEye-level values are represented as the estimated marginal mean (95% confidence interval)