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Abstract #98363 Published in IGR 22-4
Refractive Outcomes for Combined Phacoemulsification and Glaucoma Drainage Procedure
Mehta R; Tomatzu S; Cao D; Pleet A; Mokhur A; Aref AA; Vajaranant TSOphthalmology and therapy 2022; 11: 311-320
INTRODUCTION: To evaluate the refractive outcome of combined cataract extraction and glaucoma drainage device (GDD) surgery. METHODS: Patients who had undergone combined phacoemulsification with GDD surgery [Baerveldt, Abbott Medical, Abbott Park (IL) or Ahmed valve, New World Medical, Rancho Cucamonga (CA)] between June 2009 and August 2017 were included in the study. The main outcome measure evaluated was whether or not spherical equivalent (SE) between ± 1D from target refraction was achieved at 3-6 months postoperatively. RESULTS: The final analysis included 42 eyes of 38 patients who underwent combined phacoemulsification and GDD surgery. A refractive outcome of spherical equivalent (SE) between ± 1D of the target refraction was achieved in 30 of 42 eyes (71.43%) at 3-6 months after surgery. Mean preoperative axial length (AL) of eyes with postoperative SE outside ± 1D from target (SD = 0.98, p = 0.003) was noted to be 25.37 ± 0.98 mm (longer mean AL) and that of eyes with SE between ± 1D (SD = 0.89, p = 0.000) was found to be 23.34 ± 0.89 mm (average mean AL). Twelve (29%) eyes were noted to have a mean 0.52D (SD = 0.49; range 0.02-1.49) of corneal astigmatism induced by combined surgery. Age, central corneal thickness, preoperative anterior chamber depth, and pre- and postoperative intraocular pressure did not significantly affect refractive outcomes. CONCLUSION: Refractive outcomes within 1.00D of the target refraction were achieved in most patients undergoing a combined surgical approach. Longer AL was a risk factor among patients with refractive change > 1.00D from target.
Illinois Eye and Ear Infirmary, 1855 W. Taylor Street, M/C 648, Chicago, IL, 60612, USA.
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