Nonstrabismic binocular vision anomalies among students of a Malaysian private university

Purpose The study aimed to find the status of nonstrabismic binocular vision anomalies (NSBVA) among the students of a Malaysian private university. Patients and methods This is a prospective cross–sectional study that was conducted among the students of a private Malaysian University. It included 142 students irrespective of sex. The study included University students aged 18–35 years with best-corrected distance and near visual acuity of 6/6 and N6, respectively. They were subjected to a series of tests which included the heterophoria test, amplitude of accommodation, negative relative accommodation, positive relative accommodation, accommodative facility (monocular and binocular), accommodative convergence accommodation ratio, monocular estimation method, near point of convergence, positive fusional vergence (distance and near), negative fusional vergence (distance and near), and vergence facility to identify the NSBVA. Results The NSBVA were reported in 40.8% of the students. The accommodative and vergence anomalies were detected in 17.6% and 23.2% of the students, respectively. There was no statistically significant association between the NSBVA and sex [ χ 2 (1, N =142) =3.569, P= 0.059]. Conclusion The percentage of NSBVA was high among the students of a Malaysian private university and the percentage of vergence anomalies was higher than the accommodative anomalies. However, there was no significant association between sex and NSBVA.