Abstract
This was a prospective study to evaluate the feasibility of the photic phenomena test (PPT) for quantifying glare, halo, and starburst. We compared two presbyopia-correcting intraocular lenses (IOLs), the Symfony IOL and the PanOptix IOL, as well as the monofocal Clareon IOL in 111 IOL-implanted eyes of 111 patients who underwent the PPT 1 month postoperatively. The reproducibility of photic phenomena with the PPT was assessed in 39 multifocal IOL-implanted eyes of 20 patients and among the examiners. Patients with ocular diseases, except for refractive errors, were excluded. The mean values of the groups were evaluated. Bland–Altman plots were used to analyze statistical data (Easy R version 1.37; R Foundation for Statistical Computing, Vienna, Austria). The PPT reproducibility assessment revealed no fixed bias or regressive significance. Reproducibility was confirmed. The glare size did not differ significantly between the Symfony, PanOptix, and Clareon groups. The halo size was significantly larger in the Symfony group (p < 0.01) than in the PanOptix group. The halo intensity was significantly brighter in the PanOptix group (p < 0.01) than in the Symfony group. In contrast, no halos were perceived in the Clareon group. The starburst size or intensity did not differ significantly between the Symfony, PanOptix, and Clareon groups. We identified the photic phenomenon related to various IOLs.
Highlights
The recent advent of intraocular lenses (IOLs), such as toric and presbyopia-correcting IOLs, has increased patients’ expectations regarding the postoperative quality of vision after undergoing modern cataract surgery [1]
We aimed to investigate the feasibility of the photic phenomena test (PPT) for the quantification of glare, halo, and starburst using our newly developed simulator, the soft Vision Simulator, which exposes patients to light sources, similar to the halometer, and reproduces photic phenomena in real time
We found that the PPT was highly effective for the quantitative and subjective assessment of photic phenomena of various IOLs
Summary
The recent advent of intraocular lenses (IOLs), such as toric and presbyopia-correcting IOLs, has increased patients’ expectations regarding the postoperative quality of vision after undergoing modern cataract surgery [1]. Presbyopia-correcting IOLs are highly effective in providing an extended field of vision and improving the patients’ quality of life [2]. Photic phenomena, such as glare, halo, and starburst, have been reported in eyes implanted with presbyopia-correcting IOLs, resulting in patient dissatisfaction and IOL exchange [3, 4]. Glare is defined as reduced sharpness of vision under bright light or a dim disk of light.
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