Drugs causing macular toxicity when given intiavitreally-: (A) Gentamycin, (B) Vancomycin, (C) Dexamethasone, (D) Ceftazidime
Answer is A. Ref:comprehensive ophthalmology AK Khurana 4th edition page no :152 Gentamycin is 4 times more retinotoxic (causes macular infarction) than amikacin. Preferably the aminoglycosides should be avoided. 