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Multifocal lens shows good results, particularly in hyperopic patients
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 George Beiko |
ABU DHABI — Results of a multicenter Canadian study show that the Tecnis multifocal one-piece IOL with +4 optical power add from Abbott Medical Optics performs well, particularly in hyperopic patients. "Having seen the good results of the U.S. clinical trial, we wanted to see what happens in real life," George Beiko, MD, said at the World Ophthalmology Congress here.
The trial involved 25 sites across Canada, enrolling a total of 250 patients.
"We separated patients into myopes and hyperopes. Myopes were a little bit younger, and this is not unusual because myopes develop cataract earlier. Mean refraction in myopes was -0.4 D, so no extreme myopes were enrolled, and hyperopes were a mean of +2 D," Dr. Beiko explained.
The average achieved refraction at 1 month was ±0.5 D for both myopes and hyperopes, and this was maintained at 3 months.
As predicted, visual acuity at all distances was better in hyperopes than in myopes. At 3 months, 96% of hyperopes vs. 91% of myopes achieved 20/20 distance vision. Intermediate vision of 20/30 or better was achieved by 95% of hyperopes and 90% of myopes,
and near vision was 20/20 or better in 96% of hyperopes vs. 84% of myopes. At 1 month, the difference was even greater, Dr. Beiko said.
Spectacle independence was achieved at 3 months by 84% of hyperopic patients vs. 80% of myopic patients.
"Hyperopic patients have more comfortable reading vision and better spectacle independence. I'd recommend using your hyperopic patients initially to get your experience with this lens, as they seem the ones who do better," Dr. Beiko said.
- Disclosure: Dr. Beiko is a consultant for AMO.