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Binocular vision case studies

Sosena Tang explains the diagnosis and management of the case study presented in last week's issue

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This patient presents with classic signs and symptoms of convergence insufficiency (CI). CI is a common symptomatic binocular vision anomaly seen in optometric practice. The definition of CI is an 'inability to obtain or maintain sufficient convergence for comfortable binocular vision'.1 A normal near point of convergence is considered in the range of 6-8cm2 (Figure 1).

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