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Anterior, posterior chamber IOLs offer different advantages

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THOROFARE, N.J. — Anterior chamber phakic IOL models may offer more predictable refractive results, but posterior chamber models can be inserted through smaller incisions, said a panel of surgeons during the recent Videorefractiva meeting in Italy.

Phakic IOLs are becoming increasingly popular for correction of refractive errors in patients for whom corneal laser surgery is contraindicated.

Implantation of the Artisan anterior chamber IOL is "not a simple procedure," said Pietro Giardini, MD. The PMMA lens must be implanted through at least a 5.5-mm incision, with resulting implications for postop astigmatism.

On the other hand, the foldable posterior chamber Implantable Contact Lens (ICL) has a learning curve "as long as for anterior chamber lens implantation," Dr. Giardini added. He said the ICL procedure is “a more delicate technique."

Surgeons agreed refractive results are more predictable with anterior chamber lenses than posterior chamber lenses. Dr. Giardini said ICL refractive results are less predictable than results with anterior chamber lenses, as a higher number of preop parameters are required.

For more of this article, from the upcoming Nov. 1 issue of Ocular Surgery News, click here.