AI Article Synopsis
- The study compared retinal images produced by two multifocal intraocular lenses (IOLs)—a five-zone refractive IOL and a diffractive IOL—using an eye model with a 3 mm pupil diameter.
- When focused on far vision, the refractive IOL's retinal image was nearly identical to that of a standard monofocal IOL, while the diffractive IOL's image quality was inferior.
- For near vision, the diffractive IOL's image quality improved to match its far section, and when tested under glare, the diffractive IOL produced the strongest light rings, with the monofocal IOL generating the smallest.
Article Abstract
Retinal images produced by two types of multifocal intraocular lenses (IOLs) were studied using an eye model. One of them was a refractive IOL with five zones, and the other was a diffractive lens. The IOLs were inserted into an eye model with a pupil diameter of 3 mm. The retinal plane of the eye model was observed microscopically. When the section of the IOL used for far vision was in focus, the retinal image of the refractive IOL was almost the same as that of the monofocal IOL, which was better than that of the diffractive IOL. When the near vision section of the IOL was in focus, the retinal image of the diffractive IOL had almost the same quality as the far section. The light rings produced when the multifocal IOLs were illuminated by a glare source were also examined. They showed that the diffractive IOL was stronger than the refractive IOL, but the monofocal was the smallest of the three.
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