Abstract
Background: Hypertropia is a condition of misalignment of the eyes where the visual axis of one eye is higher than the fellow fixating eye. Hypotropia is the similar condition focus being on the eye with the visual axis lower than the fellow fixating eye. Dissociated Vertical Deviation is a special type of hypertropia leading to slow upward drift of one or rarely both eyes usually when the patient is inattentive. Vertical Deviation may be congenital or acquired and misalignment is due to imbalance in extra ocular muscle function. Materials and Methods: This is a prospective study conducted on 32 patients with clinical diagnosis of vertical deviation. Results: 32 cases with clinical diagnosis of Vertical Deviation were enrolled in this study. Esodeviation is the common associated deviation. Conclusion: Superior oblique palsy was the frequent cause of hypertropia. Majority of them were congenital in origin. Majority presented with upward deviation of Right eye.
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