The following clinical assessments are undertaken at each visit:

Binocular single vision (BSV) testing: simultaneous perception, motor fusion, and distance stereopsis using synoptophore; near and distance stereopsis using Titmus test and Randot test

Best corrected visual acuity (BCVA)

Measurement of ocular alignment using the prism and alternative cover test (PACT) at near and distance

Ocular motility examination

Measurement of control of alignment using revised Newcastle control score (NCS)

Evaluation of quality of life using Intermittent exotropia questionnaire (IXTQ) [19 (link), 20 ]

Cycloplegic refraction

Routine ocular examination of anterior segment, fundus, and ocular motility

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