This article is part of Ophthalmology Advisor’s conference coverage from the 2021 meeting of American Society of Cataract and Refractive Surgery (ASCRS), held in Las Vegas from July 23 to 27, 2021. The team at Ophthalmology Advisor will be reporting on a variety of research presented by the cataract and refractive surgery experts at ASCRS. Check back for more from the ASCRS 2021 Meeting.


Extended depth of focus intraocular lenses (IOL) are promising in patients with a history of radial keratotomy who require cataract surgery or refractive lens exchange, according to a presentation at the American Society of Cataract and Refractive Surgery (ASCRS) 2021 meeting in Las Vegas. 

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To evaluate refractive outcomes associated with extended depth of focus IOLs, researchers will conduct a prospective evaluation of eyes from a single center both with and without a history of radial keratotomy. 

Available preoperative data include uncorrected distance visual acuity, uncorrected near visual acuity, manifest refraction, axial length, k1, k2, and mean k. Postoperative assessments will include manifest refraction, uncorrected and corrected distance visual acuity, and uncorrected near visual acuity. 

Results of this study are forthcoming. 

“Initial clinical impressions of extended depth of focus IOLs are promising in post radial keratotomy patients and this may be considered a good treatment option for cataract and refractive lens exchange,” the researchers explain. 

Visit Ophthalmology Advisor’s conference section for complete coverage of the ASCRS 2021 meeting and more.



Penatti RC, Gouvea L, Waring IV GO, Rocha KM. Refractive outcome of extended depth of focus IOL in post radial keratotomy eyes compared to normal eyes. Paper presented at: 2021 ASCRS Annual Meeting; July 2021; Las Vegas, NV. Abstract 76726.