2020年1月23日 · There's glare or flare, halos, and starburst. Glare can occur when you have your black letters against a white background with what we will call foreground and background. And that edge should be clear and dark and sharp and very well defined when you start to get sort of a softening of that and less distinct definition of the foreground versus ...

2022年1月1日 · A limiting factor with the Symfony, said Dr. Shafer, is the risk of a distinct positive dysphotopsia. “The lens’ classic visual artifact is a starburst phenomenon. But in my experience, even though patients tend to notice it, they tolerate the …

2025年1月2日 · Photic phenomena are more pronounced in presbyopia-corrected than in monofocal intraocular lens (IOL), causing dissatisfaction after cataract surgery. Photic Phenomena Test (PPT) quantifies...

Purpose : Starburst and halo are undesirable vision phenomena usually associated with the use of multifocal and EDoF IOLs, but it is not yet fully understood how they impact subjective quality of vision. The goal of the study was a qualitative and quantitative comparative analysis of different IOLs on their influence on night vision ability and ...

2021年12月1日 · Presbyopia-correcting IOLs are highly effective in providing an extended field of vision and improving the patients’ quality of life . Conversely, 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]. Photic ...

2017年8月31日 · There is no specific test to assess the risk of halos, as every patient notices some halo/glare after the surgery. For most, this will decrease over the first three months. Some surgeons feel that certain corneal abnormalities found on measurements taken before the surgery can lead to more halo/glare after surgery but this is not absolute.

2021年2月15日 · The Vivity IOL is a good option for motivated premium IOL candidates who want to be less dependent on visual correction but don’t mind using readers for very small print. It can also be considered for those who may not be good candidates for traditional multifocal IOLs due to halo or starburst sensitivities.

2002年7月1日 · Purpose: To characterize the visual sensations reported after bilateral implantation of the Array® multifocal intraocular lens (IOL) (Allergan Surgical) and evaluate the means to mitigate unwanted visual sensations. Setting: Surgery centers in Kansas City, Missouri, and Lake Worth, Florida, USA.

We compared the visual performance of a bifocal intraocular lens (IOL) (ZMB00) and an extended-depth-of-focus (EDOF) IOL (ZXR00V) by evaluating postoperative parameters at 10 weeks after the...

The goal of the study was a qualitative and quantitative comparative analysis of different IOLs on their influence on night vision ability and photic phenomena using a virtual implantation method...