Using the heterophoria method,
calculate the AC/A (accommodative convergence / accommodation) ratio using
the following values (assuming the patient is emmetropic):
-
Interpupillary distance
= 60 mm
-
Alternate cover test
at
the distance (6 metre) = 36 prism dioptres esophoria
at
near (33 cm)
= 30 prism dioptres esophoria
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