Overall high satisfaction
Overall 88.5% of patients said they were satisfied, 5.5% were neutral, and 5.8% were dissatisfied.
The small-aperture IOL appears to offer some advantages over other IOLs designed to correct for presbyopia, said Dr. Dick. With multifocal lenses, the patient has to interpret in-focus images on top of out-of-focus images as the various optical zones focus light to different focal points, he explained.
“As a result, these lenses can achieve good vision at specific foci, however with the determent of visual symptoms,” Dr. Dick said. “The IC-8 IOL, with its small aperture, provides a continuous extended depth of focus that doesn’t overlay in-focus and out-of-focus images.”
The small-aperture IOL also provides a complete range of vision than bifocal lenses, he said. “Compared to trifocal IOLs, the near focal point with the IC-8 IOL may not be quite as close, however the quality of vision with the IC-8 IOL is better,” he added.
In addition to cataract patients who do not want reading glasses, the lens is used for patients who have undergone refractive surgery, in challenging eyes like iris trauma and keratoconic patients, and in complex cataract cases to decrease dysphotopsias, said Dr. Dick. “The lens can truly benefit a broad spectrum of patients.”
Dr. Dick cautioned that it is contraindicated in patients with untreated ocular surface disease, macular diseases, or proliferative retinal disease.
Before surgery, he points out to patients that the lens is used monocularly and is paired with a high-quality, monofocal IOL in the fellow eye.
“If patients cover one eye and then the other to compare the different lenses, they may notice some differences in dimness between eyes,” Dr. Dick says. “Patients should be encouraged to not compare eyes as this will delay their natural adaption.”
Researchers are now evaluating the lens’ potential for bilateral implantation, he said.