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Table 2 “Visual acuity and refractive data stratified by refractive error”

From: Biometry and visual function of a healthy cohort in Leipzig, Germany

 

Myopes

Emmetropes

Hyperopes

UDVA [logMAR]

+0.52 ± 0.43

−0.09 ± 0.09

+0.32 ± 0.32

CDVA [logMAR]

−0.10 ± 0.08

−0.15 ± 0.07

−0.10 ± 0.09

Sphere [D]

−2.01 ± 1.81

0.11 ± 0.34

2.05 ± 1.30

SE [D]

−2.40 ± 1.83

−0.06 ± 0.31

+1.79 ± 1.23

DD to habitual correction [D]

0.52 ± 0.35

0.34 ± 0.26

0.73 ± 0.38

DD to a 0.00D lens [D]

2.47 ± 1.82

0.34 ± 0.19

1.74 ± 1.21

AL [mm]

24.38 ± 1.06

23.54 ± 0.73

22.98 ± 0.79

CRTmin [μm]

231.08 ± 20.07

231.76 ± 20.50

232.51 ± 18.75

CFST [μm]

279.01 ± 20.58

279.49 ± 20.70

279.28 ± 20.67

height adjusted data (for procedure see Table 8)

 AL_adj [mm]

24.32 ± 1.01

23.57 ± 0.65

23.03 ± 0.74

 CRTmin_adj [μm]

230.96 ± 19.76

232.03 ± 20.47

233.17 ± 18.89

 CFST_adj [μm]

278.10 ± 19.66

279.61 ± 20.18

280.41 ± 19.60

  1. Caption: Data stratified by refractive state based on spherical equivalent (SE) of subjective refraction (mean ± standard deviation) determined by best corrected visual acuity. Data grouped into three refractive states by SE based on the following criteria: hyperopia > +0.50 and myopia < −0.50. Uncorrected distance visual acuity (UDVA) was best for emmetropes, corrected distance visual acuity (CDVA) was relatively equal between groups, mean SE identified that myopia was the highest absolute refractive error of the sample. Dioptric distance (DD) was employed to present the change of the best corrected subjective refraction to the previous corrective state (e.g., spectacle correction if present). Here a value of zero would indicate that former correction and current refraction matched. Based on this, the mean DD between best corrected refraction and current spectacle correction was 0.52D (SD ±0.35) for myopes, 0.34D (±0.26) for emmetropes and 0.73D (±0.38) for hyperopes. To summarise the refractive error present in the sample (218 subjects) by dioptric distance to a 0.00D lens, the group presented with 1.55 ± 1.63 D (range 0.00 to 8.38 D); women 1.45 ± 1.59 D; men 1.64 ± 1.67 D. Stratified by SE, these values for DD were 2.47D (±1.82) for myopic subjects, 0.24D (±0.19) for emmetropes and 1.74D (±1.21) for hyperopes, which is supplied here for comparison with the routinely used measure of SE when stratified into the three groups