Abstract

The impact of anti-sepsis-anesthesia sequence in intravitreal injection (IVI)-associated endophthalmitis is unknown. We compared outcomes of patients who had 10% topical povidone-iodine before or after 2% topical lidocaine gel during IVIs. A retrospective study of IVIs in nine clinical sites was undertaken. Group 1 had lidocaine gel applied first. This protocol was changed on March 1, 2020, with Group 2 having povidone-iodine applied first. Visual and micro-biological outcomes were compared. Among 72 cases (0.07%) from 102,908 IVIs, Group 1 had 59 cases from 65,307 IVI (0.09%) and Group 2 had 13 cases from 37,601 IVI (0.03%; P = 0.001). There was no significant difference in the best-corrected visual acuity between groups. Highly virulent bacteria were predominantly isolated in Group 1, but proportions of gram-positive bacterial growth were similar. Application of povidone-iodine before lidocaine gel, compared to after, significantly decreased rate of IVI endophthalmitis, with no significant changes in visual and microbiological outcomes. [Ophthalmic Surg Lasers Imaging Retina 2023;54:520-525.].

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