A simple treatment for chronic postoperative hypotony of unknown etiology:The injection of balanced salt solution into the anterior chamber

Postoperative hypotony is not rare. When it occurs, effective treatment mus t be initiated to avoid secondary complications. We report two cases of pos toperative hypotony that have been treated successfully with a single injec tion of balanced salt solution (BSS) into the anterior chamber. One patient developed hypotony three months after combined cataract surgery and trabec ulectomy with the use of Mitomycin C (MMC). The cause of hypotony remained unknown. Leakage, hyperfiltration, cyclodialysis, and other possible causes had been excluded. With a single injection of BSS into the anterior chambe r the long-standing hypotony was successfully managed. A second patient wit h hypotony after pars plana vitrectomy was also treated successfully with a n injection of BSS into the anterior chamber. We conclude that an injection of BSS into the anterior chamber is an inexpensive and efficacious remedy for postoperative hypotony of unknown etiology.