<prompt> Drugs causing macular toxicity when given intiavitreally-GentamycinVancomycinDexamethasoneCeftazidime  <response>: 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. 