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Table 6 Retinal causes of visual impairment in better eye after best correction

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

Cause Unilateral low vision Bilateral low vision Unilateral blindness Bilateral blindness
Dry AMD 56 (56) 64 (52.45) 7 (18.42) 6 (42.85)
Wet AMD 2 (2) 3 (2.46) 6 (15.79) 5 (35.71)
BRVO 10 (10) 13 (10.65) 2 (5.26)  
ERM 8 (8) 11 (9.01) 6 (15.79)  
CRVO 2 (2) 2 (1.64) 1 (2.63)  
Diabetic retinopathy 10 (10) 7 (5.74) 3 (7.89)  
Macular hole 1 (1) 5 (4.09) 2 (5.26)  
Myopic fundus 4 (4) 7 (5.74) 5 (13.16) 2 (14.28)
Macular scar 4 (4) 4 (3.28) 3 (7.89)  
Retinitis pigmentosa   1 (0.82)   
Retinal detachment   1 (0.82) 1 (2.63) 1 (7.14)
Hypertensive retinopathy (grade three) 2 (2) 3 (2.46) 1 (2.63)  
Undetermined cause   1 (0.82) 1 (2.63)  
Chorio-retinal coloboma 1 (1)    
Total 100 122 38 14
  1. Best corrected visual acuity (BCVA) in better eye measured in LogMAR
  2. Low vision (< 0.3 LogMAR ≥1.3 LogMAR), Blindness (> 1.3 LogMAR)
  3. Abbreviation: AMD Age Related Macular Degeneration, BRVO Branch Retinal Vein Occlusion, CRVO Central Retinal Vein Occlusion, ERM Epi Retinal Membrane