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Clinical Case Notes

Anterior and posterior visual pathway disturbances have been reported post‐coronary artery bypass graft surgery. Acute angle‐closure glaucoma after general anaesthesia has also been well described in the literature. To date, however, there are only two cases of angle closure caused by tonic pupils. The case is reported herein of bilateral subacute angle‐closure glaucoma that occurred following coronary artery bypass graft surgery in association with tonic pupils.