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  • Title: Outcome of fixed volume intracameral sodium hyaluronate 1.4% injection for early postoperative hypotony after Baerveldt glaucoma implant.
    Author: Chiam PJ, Chen X, Haque MS, Sung VC.
    Journal: Clin Exp Ophthalmol; 2018 Dec; 46(9):1035-1040. PubMed ID: 29934963.
    Abstract:
    IMPORTANCE: Using an ophthalmic viscoelastic device to manage early postoperative hypotony after Baerveldt glaucoma implant (BGI). BACKGROUND: To determine the outcome of intracameral sodium hyaluronate injection for early postoperative hypotony treatment after BGI. DESIGN: A retrospective study. PARTICIPANTS: One-hundred-and-thirty-eight patients (176 eyes) had BGI from January 2012 to November 2015. Those who had hypotony within 3 months postoperatively were studied. METHODS: Hypotonous eyes were injected with 0.1 mL sodium hyaluronate 1.4% intracameral on the slit-lamp. The patients were followed up weekly and the injection repeated up to 3 times if hypotony persisted. The tube was tied surgically as a last resort. MAIN OUTCOME MEASURES: The intraocular pressure and best-corrected visual acuity at week 1, 2, 3, 4, 6 and month 4 were assessed. RESULTS: Thirty (17.0%) out of 176 eyes developed early postoperative hypotony. The median intraocular pressure and median best-corrected visual acuity when hypotony first presented were 3 mmHg and 0.8 logMAR. Two eyes were excluded as they had more than 0.1 mL injection. Eight (29%) of the 28 hypotonous eyes resolved after one injection, seven (25%) required two and 10 (36%) needed three injections. Three (11%) eyes had surgical tube tie. The median intraocular pressures were 5, 7, 8, 10, 11 and 13 mmHg at week 1, 2, 3, 4, 6 and month 4 post-injection. The median best-corrected visual acuity were 0.60, 0.50, 0.50, 0.45, 0.40 and 0.40 logMAR for the same period. CONCLUSIONS AND RELEVANCE: Standardised intracameral 0.1 mL sodium hyaluronate 1.4% is an effective and safe way to manage early postoperative hypotony after BGI.
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