Postoperative bilateral visual loss after a single dose of tranexamic acid.

A 32-year-old woman presented with transient visual loss following the intra-operative administration of a single intravenous dose of tranexamic acid during urgent cholecystectomy. Apart from obesity, the patient had no notable medical history or pre-existing ocular conditions. Immediately after surgery, the patient reported sudden onset blindness. Ophthalmological and radiologic assessments did not reveal any detectable macrovascular or organic ophthalmic lesions. The patient's vision gradually improved spontaneously, with the resolution of the dyschromatopsia on the first postoperative day and complete recovery by the second postoperative day. This case highlights the importance of prompt investigation of acute visual impairment postoperatively and identifying potential causative agents, such as tranexamic acid.