Objectives: Report a case of Tay-Sachs disease. Methods: A complete ophthalmologic examination, retinography and blood dosage of hexosaminidase A (EHA) activity were performed. Results: A one year and seven months old male with a history of generalized tonic-clonic seizures, with delayed neuropsychomotor development from the eighth month of life. At the ophthalmologic examination the patient did not fix or foll...