Effect of the angle of the operating microscope light beam on visual recovery after phacoemulsification: Randomized trial

Journal of Cataract and Refractive Surgery
Francesca E HarmanJulian D Stevens

Abstract

To evaluate differences in visual recovery after phacoemulsification with direct or tilted surgical microscope illumination using a macular photostress test. Western Eye Hospital, Imperial College Health Care National Health Service Trust, London, United Kingdom. This randomized double-masked controlled trial enrolled patients presenting to a daycare unit for single-eye cataract surgery. Inclusion criteria were no ocular pathology other than cataract, corneal keratometric astigmatism less than 1.50 diopters, intended target of emmetropia in the operated eye, and cataract grade 1 to 3 (Lens Opacification Classification System II). Exclusion criteria were an abnormal preoperative photostress test. Patients were randomized to have phacoemulsification with the operating microscope angled 15 degrees nasal to the fovea (study group) or with the operating microscope directly overhead around the optic disc region (control group). The same surgeon performed all phacoemulsification procedures using a standardized technique and topical anesthesia. Outcome measures were uncorrected (UDVA) and corrected (CDVA) distance visual acuity 10 minutes and 60 minutes postoperatively. In the 30 patients evaluated, the mean UDVA 10 minutes postoperati...Continue Reading

References

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Citations

Mar 29, 2014·Middle East African Journal of Ophthalmology·Ammar M Al MahmoodAshley Behrens
Mar 29, 2018·Journal of Cataract and Refractive Surgery·Hyejin SeoTerry Kim
Sep 25, 2019·Indian Journal of Ophthalmology·Yu Jeong KimKyu Hyung Park

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