Impaired fusional vergence facility in young adults with dry eye syndrome

CLINICAL RELEVANCE: Symptoms associated with dry eye and those related to vergence and accommodative disorders exhibit considerable overlap, suggesting a possible dysfunction in vergence/accommodative performance in individuals with dry eye. BACKGROUND: This cross-sectional study aimed to assess the accommodative and binocular vision performance in young adults with dry eye syndrome compared to a control group. METHODS: Forty individuals with dry eye syndrome and 40 healthy controls were enrolled. Each participant underwent a comprehensive ocular examination including visual acuity measurement, refraction, slit-lamp examination, tear film evaluation, and assessments of accommodative and binocular vision performance. RESULTS: = 0.010) was noted between the vergence facility and the tear break-up time. CONCLUSION: Dry eye negatively affects vergence facility in young adults. This vergence dysfunction contributes to the symptoms reported by dry eye patients and shows a significant positive correlation with tear film instability.