Management of alkali burns - An 11-year retrospective review

Objective: To review the spectrum of patients with alkali burns admitted ov er an 11-year period and to assess the clinical outcomes after the introduc tion of a standard alkali burn treatment protocol. Design: Retrospective nonrandomized comparative study. Patients and Interventions: A total of 121 patient records with alkali burn s (n = 177 eyes) admitted to a tertiary hospital between 1987 and 1998 were reviewed. Eyes treated with a standard alkali burn treatment protocol, whi ch included intensive topical steroids, ascorbate, citrate, and antibiotics , were compared with eyes treated by conservative management with antibioti cs, and a short course of steroids. Main Outcome Measures: Time to corneal reepithelialization, final best-corr ected visual acuity, and time to visual recovery, length of hospital stay, and complications were analyzed. Results: The standard protocol tended to delay corneal reepithelialization by one day (P = not significant) in eyes with grade 1 burns (n = 76) and by 2 days (P = 0.04) in grade 2 burns (n = 52), with no difference in final v isual outcome. There were 37 eyes with grade 3 burns. Those treated with th e standard protocol showed a trend toward more rapid corneal reepithelializ ation. Twenty-seven of 29 (93%) eyes with grade 3 injuries achieved a final best-corrected visual acuity of 20/40 or better compared with 3 of 6 (50%) eyes not treated according to the standard protocol (P = 0.02). Eyes with grade 4 burns (n = 12), whether treated with the standard protocol or not, required 10 to 12 weeks for corneal reepithelialization, There was no stati stically significant difference in final visual acuity. Conclusion: On the basis of our findings, a number of recommendations can b e made for the management of alkali injuries. Patients with a grade 1 or 2 injury do not require routine admission and do not benefit from the use of intensive treatment with ascorbate and citrate. A trend toward more rapid h ealing and a better final visual outcome were apparent in grade 3 burns, bu t our standard protocol made no difference in grade 4 burns. Ophthalmology 2000; 107:1829-1835 (C) 2000 by the American Academy of Ophthalmology.