Do school classrooms meet the visual requirements of children and recommended vision standards?

ABSTRACT:

Background

Visual demands of school children tend to vary with diverse classroom environments. The study aimed to evaluate the distance and near Visual Acuity (VA) demand in Indian school classrooms and their comparison with the recommended vision standards.

Materials and methods

The distance and near VA demands were assessed in 33 classrooms (grades 4 to 12) of eight schools. The VA threshold demand relied on the smallest size of distance and near visual task material and viewing distance. The logMAR equivalents of minimum VA demand at specific seating positions (desk) and among different grades were evaluated. The near threshold was converted into actual near VA demand by including the acuity reserve. The existing dimensions of chalkboard and classroom, gross area in a cla

SUBMITTER: Negiloni K 

PROVIDER: S-EPMC5378392 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature