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Surgeon offers postop astigmatism value for ICL implantation
CHICAGO — A presenter here specified the degree of postoperative residual astigmatism necessary to attain superior visual outcomes following posterior chamber phakic lens implantation, as well as surgical tips for achieving this goal.
 Akihiro Yasuda |
“Patients who undergo refractive surgery are not always satisfied with uncorrected distance visual acuity of 20/20 if they initially had better vision with spectacles or contact lenses prior to surgery,” Akihiro Yasuda, MD, said at the American Society of Cataract and Refractive Surgery meeting.
Dr. Yasuda and colleagues analyzed 448 eyes of 230 patients implanted with a STAAR Surgical Implantable Collamer Lens (ICL): 179 eyes received a standard ICL and 269 eyes received a toric ICL. Postoperative astigmatism was compared between those with uncorrected distance visual acuity of 20/12.5 or better and those with uncorrected acuity of less than 20/12.5.
“Residual astigmatism should be less than –0.5 D to achieve uncorrected distance visual acuity of 20/12.5 or better,” Dr. Yasuda said. “If preoperative cylinder is –1 D or less, ICL implantation through corneal incision at the axis of cylinder is effective. If preoperative cylinder is –1.25 D or more, toric ICL implantation through temporal corneal incision is recommended.”
- Disclosure: Dr. Yasuda has no relevant financial disclosures.