Variable | Respondents | Non-respondents | P value |
Demographic | |||
No. of subjects | 186 | 134 | < 0.001 |
Age, year | 64.7±7.0 | 69.4±7.9 | < 0.001 |
Gender (M/F) | 74/112 | 45/89 | 0.257* |
Weight, kg | 56.4±9.0 | 56.3±10.5 | 0.973 |
Height, cm | 155.9±8.2 | 154.8±8.7 | 0.224 |
SBP, mm Hg | 135.0±21.8 | 140.7±21.7 | 0.023 |
DBP, mm Hg | 72.3±12.8 | 71.9±12.3 | 0.767 |
SE, dioptre | 1.1±2.5 | 1.6±2.2 | 0.066 |
Biometric parameter | |||
AL, mm | 23.8±5.7 | 24.8±11.5 | 0.287 |
ACD, mm | 2.8±0.5 | 2.8±1.0 | 0.644 |
LT, mm | 5.8±9.8 | 7.0±14.2 | 0.403 |
IOP, mm Hg | 14.1±2.8 | 13.6±3.0 | 0.128 |
TISA500, mm2 | 0.077±0.05 | 0.078±0.05 | 0.919 |
ARA750, mm | 0.158±0.10 | 0.156±0.09 | 0.846 |
IT750, mm | 0.450±0.18 | 0.455±0.18 | 0.812 |
Iarea, mm2 | 1.569±0.48 | 1.591±0.29 | 0.631 |
ACW, mm | 11.74±0.44 | 11.66±0.47 | 0.089 |
ACA, mm2 | 18.94±2.89 | 17.93±3.34 | 0.004 |
LV, μm | 573.5±246.2 | 651.4±278.7 | 0.008 |
PD, mm | 4.319±1.14 | 3.97±1.23 | 0.009 |
ΔTISA500, mm2 | 0.218±0.032 | 0.020±0.029 | 0.514 |
ΔARA, mm2 | 0.045±0.065 | 0.041±0.054 | 0.516 |
ΔIT750, mm | −0.755±0.166 | −0.632±0.162 | 0.509 |
ΔIarea, mm2 | 0.271±0.415 | 0.256±0.267 | 0.731 |
ΔACW, mm | 0.052±0.197 | 0.024±0.160 | 0.178 |
ΔACA, mm2 | −0.707±0.271 | −0.644±0.304 | 0.057 |
ΔLV, μm | 20.4±70.9 | 11.7±63.3 | 0.259 |
ΔPD, mm | −1.678±1.112 | −1.241±1.210 | 0.001 |
Bold indicates statistical significance.
*Fisher exact probability test.
Δ, light-to-dark changes (dark minus light); ACA, anterior chamber area; ACD, anterior chamber depth; ACW, anterior chamber width; AL, axial length; ARA, angle recess area;BP, blood pressure;DBP, diastolic blood pressure; IOP, intraocular pressure; IT750, iris thickness at 750 µm; Iarea, iris area; LT, lens thickness; LV, lens vault; PD, pupil diameter; SBP, systolic blood pressure; SE, spherical equivalent; TISA500, trabecular iris space area at 500 µm.