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Study: Intracorneal inlay explanted in majority of cases after significant complications
Ophthalmology; 116(8):1455-1460.
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Complications from the implantation of a hydrogel intracorneal inlay in hyperopic eyes led to removal of the inlay in the majority of eyes, a study found.
The prospective, nonrandomized, noncomparative, two-center study looked at 34 eyes with preoperative hyperopia of +3.9 D that were implanted with the Permavision intracorneal inlay (Anamed). All cases had corneal flaps made by the M2 (Moria) or Amadeus (Abbott Medical Optics) mechanical microkeratome, followed by implantation of the inlay on the stromal bed.
The study had up to 6 years follow-up.
Uncorrected visual acuity improved by 3 months and remained stable up to 2 years. At 2 years, the researchers found a loss of two or more lines of best corrected visual acuity in 35% of eyes; by 5 years, there was a loss of two lines or more in 55.5% of eyes.
"Refractive predictability was poor, with 60% of the eyes having ±3 D of emmetropia," the authors said. "A decentration of the inlay occurred in 29.4%, progressive perilenticular deposits were observed in 88.2%, haze was seen in 73.5%, and the inlay was explanted in 58.8%, with a cumulative survival rate of 58.4%."