This article is more than 5 years old. Information may no longer be current.
Add-on IOL technology may enhance visual outcomes
 Michael Amon |
VIENNA, Austria — Supplementary IOLs enhance surgical results in pseudophakic eyes or in primary dual implantation, according to a speaker here.
An earlier piggybacking technique in which two standard biconvex lenses were both implanted in the capsular bag often resulted in interlenticular opacification and hyperopic defocus. Attempts at sulcus placement caused pigment dispersion and secondary glaucoma in some cases.
"We have now new specifically designed lenses that fit into the sulcus, like the HumanOptics 714 and the Rayner Sulcoflex," Michael Amon, MD, said at the European Society of Cataract and Refractive Surgeons meeting.
"These IOLs are highly biocompatible to be able to stay in contact with the uveal tissue," he said. "They have large optic diameter and round optic edge to avoid glare and halos, since the PCO barrier effect is a task of the primary lens. The space in between the two optics is large enough to avoid interlenticular opacification."
Both lenses are available in toric, multifocal and toric multifocal models.
Dr. Amon has implanted these lenses in more than 90 eyes. Surgery was atraumatic and a good distance was obtained between iris and lens and between the two lenses. Centration was good, but postoperative rotation of 10° was reported in 3% of cases.
"Potential for rotation is still an unresolved problem. There is also a potential for pupillary block or pupil ovalization, and haptic placement is critical in this respect," Dr. Amon said.
Visual outcomes were good in all cases.
- Disclosure: Dr. Amon is a consultant for Rayner.