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Table 3 Presenting visual acuity and best corrected visual acuity in better eye

From: Prevalence and causes of low vision and blindness in an elderly population in Nepal: the Bhaktapur retina study

  Presenting visual acuity in better eye (N/%) P value Best Corrected visual acuity in better eye (N/%) P value
No visual impairment Low vision Blindness   No visual impairment Low vision Blindness  
Age (years):
 60–69 555(58.42) 390(41.05) 5(0.53) <  0.001¥ 856(90.11) 90(9.47) 4(0.42) <  0.001¥
 70–79 253(36.30) 428(61.41) 16(2.30) 466(66.86) 220(31.56) 11(1.58)
  ≥ 80 32(15.02) 166(77.93) 15(7.04) < 0.001¥ 82(38.50) 116(54.50) 15(7.04) < 0.001¥
Gender:
 Men 386(47.02) 412(50.18) 23(2.80) 0.153ǂ 629(76.61) 171(20.83) 21(2.56) 0.314ǂ
 Women 454(43.70) 572(55.05) 13(1.25) 775(74.59) 255(24.54) 9(0.87)
Occupation:
 Agricultural 606(44.86) 717(53.07) 28(2.07) 0.666ǂ 993(73.45) 335(24.80) 24(1.78) 0.001ǂ
 Others 234(45.97) 267(52.46) 8(1.57) 411(80.91) 91(17.91) 6(1.18)
Literacy:
 Illiterates 588(41.03) 813(56.73) 32(2.23) < 0.001ǂ 1033(72.08) 373(26.03) 27(1.88) < 0.001ǂ
 Literates 252(59.02) 171(40.05) 4(0.94) 371(86.89) 53(12.41) 3(0.70)
 Total 840(45.16) 984(52.90) 36(1.94)   1404(75.48) 426(22.92) 30(1.61)  
  1. No Visual impairment (< 0.3 LogMAR), Low vision (< 0.3 LogMAR ≥1.3 LogMAR), Blindness (> 1.3 LogMAR)
  2. Abbreviation: N Number
  3. ¥p-value is comparing the proportion of visual impairment in age group 70–79 years and 80 years and above each with 60–69 years using Chi-square test
  4. ǂ p-value is comparing the proportion of visual impairment across gender, literacy and occupation each using Chi-square test. Presenting visual acuity and best corrected visual acuity (BCVA) measured in LogMAR