Clinical Performance of Novel Single-Use Lenses in Vitreoretinal Surgery

Abstract

Purpose: To conduct a premarket study of 3 new single-use lenses for the RESIGHT ophthalmoscopy system during routine vitrectomy surgery. Methods: In this investigator-initiated prospective, academic, interventional case study from a single center, 3 new single-use lenses (a wide-angle lens, ultra wide-angle lens, and macula lens) were compared head-to-head with reusable lenses in 181 patients who had retinal detachment surgery (n = 89) or macular surgery (n = 92). After each surgery, participating surgeons completed a survey grading the performance of the new single-use lenses compared with the reusable lenses. Results: For all 3 single-use lenses in the RESIGHT system, condensation was significantly reduced compared with that of the reusable lenses, and the image quality was clearly better. The telescopic design of the ultrawide-angle lens allowed a better view of the retinal periphery, enabling complete shaving of the vitreous base without indentation in the majority of phacovitrectomy cases. The macula lens offered a wider field of view with similar image quality to that of a flat contact lens, allowing better visualization of the surgical instruments without sacrificing detail in the image, thus facilitating safer surgery. The improved resolution of the wide-angle lens allowed sufficient magnification for use in macular surgery. Conclusions: Compared with their reusable counterparts, the newly designed single-use lenses for the RESIGHT system offer significant improvements during routine vitrectomy surgery.