Two simple methods of assessing Visual outcome following cataract surgery w
ere evaluated in India. The first used data obtained from standardized pati
ent records of cataract surgery. The second used data from population-based
rapid epidemiological assessments. Analysis of 4168 hospital and eye camp
records showed that, with the available standard correction, a good outcome
(visual acuity greater than or equal to 6/18) was achieved in 37.8%, a bor
derline outcome (visual acuity 6/24-6/60) in 45.6% and a poor outcome (visu
al acuity 6/60) in 16.6% of instances. Of 2401 aphakic/pseudophakic eyes ex
amined in a cross-sectional population-based study, outcome was good in 43.
5% and poor in 26.4%. For 776 eyes examined in a similar study in a differe
nt state, outcome was good in 49.9% and poor in 23.9%. These assessments in
dicate that outcome with available correction was poor in 15-25% of eyes fo
llowing cataract surgery. Visual outcome is likely to improve when better c
orrection for aphakia can be provided. Further assessment of the causes of
poor Visual outcome is needed. The visual outcome following cataract surger
y could be monitored on a regular basis by ophthalmologists, using either o
f the methods evaluated, an exercise which in itself is likely to improve t
he outcome of surgery. When the proportion of poor outcomes is high (>10%)
further investigation into the causes is warranted.