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Intracorneal ring segments shown to improve corneal cross-linking results

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CHICAGO — Implanting intracorneal ring segments after performing corneal cross-linking improved visual results in patients, one surgeon said here.

At the annual meeting of the American Society of Cataract and Refractive Surgery, Efekan Coskunseven, MD, presented data on 27 eyes of 26 patients who underwent riboflavin mediated corneal cross-linking (UV-X) and then, 3 months afterward, received Keraring (Mediphacos) implants.

"The addition of Keraring to the UV-X procedure resulted in greater keratoconus improvements than UV-X procedure alone," Dr. Coskunseven said.

With corneal cross-linking alone, uncorrected visual acuity improved from 0.07 D preop to 0.14 D after the procedure, and best corrected visual acuity improved from 0.24 D to 0.29 D, he said. After implantation of the intracorneal ring segments, UCVA improved to 0.25 D and BCVA rose to 0.41 D.

Preoperatively, cylinder averaged –4.38 D in these eyes, and spherical equivalent was –7.13 D, he said. After cross-linking, they fell to –3.94 D and –5.74 D, respectively. After the segments were implanted, cylinder was –2.62 D and spherical equivalent was –2.98 D.