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Clear lens extraction for the management of primary angle closure glaucoma: surgical technique and refractive outcomes in the EAGLE cohort

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Author(s)

Alexander C. Day, David Cooper, Jennifer Burr, Paul J. Foster, David S. Friedman, Gus Gazzard, Jemaima Che-Hamzah, Tin Aung, Craig R. Ramsay, Augusto Azuara-Blanco

School/Research organisations

Abstract

Background To describe the surgical technique and refractive outcomes following clear lens extraction (CLE) in the Effectiveness, in Angle-closure Glaucoma, of Lens Extraction trial.

Methods Review of prospectively collected data from a multicentre, randomised controlled trial comparing CLE and laser peripheral iridotomy. Eligible participants were ≥50 years old and newly diagnosed with (1) primary angle closure (PAC) with intraocular pressure above 30 mm Hg or (2) PAC glaucoma. We report the postoperative corrected distance visual acuity (CDVA) and refractive outcomes at 12 and 36 months postoperatively for those who underwent CLE.

Results Of the 419 participants, 208 were randomised to CLE. Mean baseline CDVA was 77.9 (SD 12.4) letters and did not change significantly at 36 months when mean CDVA was 79.9 (SD 10.9) letters. Mean preoperative spherical equivalents were +1.7 (SD 2.3) and +0.08 (SD 0.95) diopters (D) at 36 months. Fiftynine per cent and 85% eyes were within ±0.5D and ±1.0D of predicted refraction, respectively, at 36 months.

Conclusions Mean CDVA in patients undergoing CLE for angle-closure glaucoma appeared stable over the 3-year study period. Refractive error was significantly reduced with surgery but refractive predictability was suboptimal.

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Details

Original languageEnglish
Pages (from-to)1658-1662
Number of pages5
JournalBritish Journal of Ophthalmology
Volume102
Issue number12
Early online date16 Feb 2018
DOIs
Publication statusPublished - Dec 2018

    Research areas

  • National Ophthalmology Database, Electronic multicenter audit, Cataract surgery, Visual acuity, Benchmark standards, Royal College, Accuracy

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