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Toric phakic IOL yields stable visual acuity, refraction at 6 months
An iris-fixated toric phakic IOL effectively corrected myopia and astigmatism, but pigment and nonpigment precipitates were observed in some eyes at 6 months, according to a study.
The researchers reported results from using the Artiflex toric phakic IOL (Ophtec) to correct myopia and astigmatism.
“Strict inclusion criteria, correct surgical technique according to the manufacturer’s specifications, and accurate postoperative examinations are required to achieve these results,” the study authors said.
The prospective, nonrandomized, multicenter study included 115 eyes of 73 patients implanted with the Artiflex toric phakic IOL. Mean patient age was 37.7 years.
Mean spherical power of implanted lenses was –7.1 D, and mean cylindrical power was –2.14 D.
The researchers assessed uncorrected and best corrected visual acuity, manifest refraction, axial length, anterior chamber depth, Goldmann applanation tonometry, fundus imaging, pupillometry, keratometry and endothelial cell density preoperatively.
UCVA, BCVA, manifest refraction, lens position, axis of enclavation and keratometry were assessed 1 day, 1 week, and 1, 3 and 6 months postoperatively. Endothelial cell density was evaluated at 3 and 6 months postop.
Study results showed that 99% of eyes had UCVA better than 20/40, and 81.8% of eyes were within 0.5 D of targeted refraction at 6 months.
Mean corneal astigmatism diminished from 2.15 D preoperatively to 1.78 D at 6 months postoperatively; the decrease was statistically significant (P < .05).
Mean endothelial cell density decreased 4.8% at 3 months, but no significant further decrease was observed between 3 and 6 months.
At 6 months, pigment precipitates were identified in 14.8% of eyes and non-pigment precipitates were identified in 12.2% of eyes. Mean IOL misalignment was 0.6°.