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Accommodation causes only minimal movement of phakic IOLs
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CHICAGO — Accommodation causes only minor movement of phakic IOLs in the eye as observed through OCT, one surgeon said here.
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In a study presented here at the American Society of Cataract and Refractive Surgery, José L. Güell, MD, used OCT to follow the pupil diameter, the distance between the phakic IOL's anterior surface and the corneal endothelium, and the distance between the phakic IOL's posterior surface and the crystalline lens' anterior surface during accommodation in 11 patients.
The patients received either the Verisyse (Advanced Medical Optics) or Veriflex (Advanced Medical Optics) phakic IOLs, he said, and their accommodation was monitored between 20 and 36 months after surgery.
There was a reduction in pupillary diamater in "every single case" with a significant difference of 1 mm at 5 D to 6 D, Dr. Güell said. There was also a significant decrease in the distance from the phakic IOL anterior surface to corneal endothelium, which went from 2.4 mm to 2.15 mm at 5 D.
There was no significant change in distance between the phakic IOL posterior surface and the crystalline lens anterior surface, Dr. Güell added.
"We concluded in this study that only minor changes were observed during accommodation," he said.
Dr. Güell said optical coherence tomography should be a part of patient follow-up after phakic IOL implantation.