Visual Acuity Screening By by School Teachers in Far West Nepal: A randomized trial of alternate screening models.

The sample size was 5000 students.

Teachers from both arms were trained to identify children aged 6 years and above with Snellen visual acuity 6/9 or worse in either eye as well as obvious ocular abnormalities and refer them to an ophthalmic team.

Result All class teachers (80 teachers) screened 3713 children and selected teachers (9 teachers) screened 2064 children aged 6 to 15 years.

The cost of screening per child with refractive error and or other ocular abnormalities was $3.05 for all class teachers and $ 5.29 for selected teachers.