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Comparison of bromfenac 0.09% QD to nepafenac 0.1% TID after cataract surgery: pilot evaluation of visual acuity, macular volume, and retinal thickness at a single site

Authors Cable M

Received 24 March 2012

Accepted for publication 24 April 2012

Published 2 July 2012 Volume 2012:6 Pages 997—1004


Review by Single anonymous peer review

Peer reviewer comments 2

Melissa Cable

Discover Vision Centers, Independence, MO, USA

Purpose: The purpose of this study was to investigate the clinical outcomes of bromfenac ophthalmic solution 0.09% once daily (QD) and nepafenac 0.1% ophthalmic suspension three times daily following cataract extraction with posterior chamber intraocular lens implantation, specifically looking at any differences in Early Treatment Diabetic Retinopathy Study visual acuities, macular volume, and/or retinal thickness changes.
Methods: Subjects were randomly assigned to receive either bromfenac (n = 10) QD or nepafenac (n = 10) three times daily. Dosing began 3 days before cataract surgery, continuing to day 21 postsurgery. In addition to the investigated nonsteroidal antiinflammatory drug regimen, all subjects received antiinfective intraoperative and postoperative standard of care. Subjects were followed at 1 day and 1, 3, and 6 weeks postoperatively. Study visit assessments included best-corrected visual acuity, biomicroscopy, summed ocular inflammation score (anterior chamber cells and flare grading), intraocular pressure measurement, adverse event recording, and concomitant medication review. Optical coherence tomography was performed at 1, 3, and 6 weeks.
Results: Both treatment groups had similar baseline measurements. Outcomes for mean letters read (P = 0.318), mean change in macular volume (P = 0.665), and retinal thickness (P = 0.552) were not statistically different between the groups from baseline through week six, although independently only the bromfenac group demonstrated a statistically significant improvement in letters gained from baseline to week six (P = 0.040). In the same time period, mean macular volume and retinal thickening worsened in the nepafenac group, demonstrating a statistically significant increase (P = 0.006) at week six for macular volume when compared to baseline. One subject in the nepafenac group experienced recurrent inflammation at week six, was unmasked, and then rescued with bromfenac 0.09% QD and difluprednate 0.05% QD.
Conclusion: Both bromfenac and nepafenac resulted in positive clinical outcomes of Early Treatment Diabetic Retinopathy Study visual acuities. Postoperative measurements of macular volume and retinal thickness of bromfenac subjects showed a trend toward improved vision, less retinal thickening, and more stable macular volumes overall.

Keywords: NSAIDs, phacoemulsification, inflammation, cataract, macular volume, retinal thickness

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