1Consultant Optometrist, Nepal Eye Hospital, Nepal
2Consultant Optometrist, Nepal Eye Hospital, National Academy of Medical Sciences, Nepal
3Optometry student, National Academy of Medical Sciences (NAMS), Bir Hospital, Nepal
*Corresponding author:Manish Dahal, (M Optom), Nepal Eye Hospital, Kathmandu-44600, Nepal, Nepal
Submission: May 15, 2021; Published: June 03, 202
ISSN: 2578-0360Volume3 Issue2
Background: Engineering is one of the disciples of science which needs tedious near works, long run
computer tasks and accurate focus and fixation. This study was carried out to assess the prevalence of
Non-Strabismic Binocular Vision Dysfunctions (NSBVD)among engineering students in Nepal.
Methodology: It was a cross-sectional study which was conducted among engineering students in
different engineering colleges in Kathmandu valley (Kathmandu, Lalitpur and Bhaktapur districts),
Nepal. Students in the age group of 18-30 years were included in the study. Each subject was examined to
investigate for the presence of an NSBVD.
Results: Of the 210 participants of age group 18 to 30 years examined,150 (71.41%) students presented
some form of NSBVD. The prevalence of accommodative dysfunction, vergence dysfunction and
oculomotor dysfunction was 21.42%, 28.57% and 10.00% respectively. The most common NSBVD was
accommodative insufficiency(12.85%) followed by convergence insufficiency (11.42%).
Conclusion: The present study indicates that non strabismic binocular vision dysfunctions are prevalent
among engineering students in Nepal and accommodative insufficiency was the most prevalent.
Keywords:Accommodative dysfunction; Engineering students; Oculomotor dysfunction; Vergence dysfunction
Abbreviations:NSBVD: Non-Strabismic Binocular Vision Dysfunctions; NPA: Near Point of Accommodation; RAF: Royal Air Force; AF: Accommodative Facility