Ideally, in any ocular infection, identification of the causative microorganisms and determination of their antibiotic resistance should precede initiation of antibiotic therapy. However, in practice bacterial cultures are only performed for vision-threatening ocular infections, whereas, cultures are rarely performed for routine infections. Penny Asbell and colleagues recently published the antibiotics resistance of 6091 isolates received from 88 centers in the United States between 2009 and 2018. Their article in JAMA Ophthalmology provides useful data on the antibiotics resistance of various species of microorganisms isolated from the ocular surface against the antibiotics routinely prescribed by ophthalmologists.
https://jamanetwork.com/journals/jamaophthalmology/fullarticle/2763805