Long-Term Clinical Outcomes Of Hybrid Acrylic Refractive Continuous Transitional Focus (Ctf) Lens Implant In Cataract Surgery

To determine the visual outcomes and complications following surgery using a hybrid acrylic refractive continuous transitional focus (CTF) lens compared to patients undergoing surgery with a monofocal lens.

Single centre case-control study.

Patients with >1D astigmatism & co-existing ocular pathologies were excluded from this study. 48 consecutive cases(eyes) undergoing cataract surgery with a CTF lens (Ophtec Precizion Presbyopic CTF lens platform- toric & non-toric versions) were compared to a similar cohort undergoing surgery with a monofocal lens. Respective patient demographics, post-operative refractive outcomes, pre-operative & post-operative BCVA, intra-operative and post-operative complications, & intermediate & near vision were collected. Patients were also asked about symptoms of glare, haloes, photopic phenomena & post-operative spectacle independence. Analysis was conducted, & data were compared to defocus information produced by the lens manufacturer.

In both groups, postoperative uncorrected distance visual acuity improved. There were no significant intraoperative or postoperative complications in either group. Patients with CTF lenses showed greater spectacle independence than those with monofocal lenses. The CTF lens group had minimal reports of glare or photopic phenomena: they also reported approximately 80% spectacle independence, showing refractive defocus data like that of previous studies. After two years, some patients required YAG capsulotomy, only to find the visual performance was restored to the post-operative vision levels.

These analyses indicate that the CTF lens leads to a sustained and improved intermediate and near vision with greater spectacle independence and low reports of photopic phenomena.