A 12-Month Performance Report Of 100 Eyes Implanted With A Continuous Full Range Of Field Intraocular Lens.

This paper presents refractive and visual experience outcomes of the first 100 eyes implanted a continuous full range of field (c-FRoFi) intraocular lens.

Rayner introduced the Galaxy c-FROFi IOL as a novel design based on spiral dioptre optics, adapted using artificial intelligence. Clinical outcomes were evaluated at Vision Scotland and reported to inform practice as these IOLs are offered as a multifocal vision solution for patients with cataract and refractive error.

100 eyes were implanted with the c-FRoFi IOL. Subjects attended at 6 and 12 months post-operatively. Assessments included distance, intermediate and near visual acuities, subjective refraction, measurement of haloes and glare (size and intensity), contrast sensitivity, slit-lamp biomicroscopy and defocus curve measurement. Subjects also completed a lifestyle questionnaire to assess quality of life.

UDVA improved to -0.09 LogMAR at distance, 0.13 LogMAR at intermediate and 0.11 LogMAR at near viewing chart. Furthermore, few patients were experiencing small residual and insignificant refractive errors and maintaining good visual quality (MARS contrast sensitivity score: 1.50 ± 0.06). Defocus curve data also supports a good visual experience, through mild to moderate levels of optical blur. The c-FRoFi spiral IOL shows a monocular performance above 0.20LogMAR between +0.5 to -2.75, showing a continuous full range of focus.

Refractive outcomes demonstrate good visual function at 6 and 12 months post operatively. Monocular defocus curves demonstrate stable defocus patterns at both 6 and 12 months. Binocular defocus curves showed a continuous range of field. After analysis of initial data, the Galaxy IOL provides a continuous full range of focus from the far distance to near. Anecdotally, there is a noticeable reduction in the dysphotopsia experienced by subjects when viewing through the Galaxy lens compared to traditional multifocal style IOLs, and a considerably faster adaptation to the spiral lens optics.