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<p>The retinal image was strongly affected by chromatic and spherical aberrations. In this contribution, the optical quality and chromatic performance of hybrid (refractive-diffractive) multifocal intraocular lenses (MIOL) are designed to reduce chromatic aberrations. Four hybrid IOLs and holographic optical elements (HOEs) embedded in a refractive lens were evaluated. In this study, the human eye was implanted by one of the following hybrid multifocal length MIOL: A hologram/refractive (H/R), hologram/diffractive (H/D); refractive/hologram (R/H), and diffractive/hologram (<i>D/R</i>). Visual performance was assessed in white and green light at a pupil diameter of 3 mm and a field of view of 5 degrees. A single-layer coating from Poly(ethylene glycol) (PEG) in (QWOT) on the hologram surface was used. Using the Liou-Brennan eye model, the human eye was simulated to access vision quality, modulation transfer function (MTF), point spread function (PSF), chromatic focal shift (LCA), image spot size (RMS), and longitudinal aberrations (LSA). The present results were compared with and without (MIOLs). Results indicate that for all hybrid-hologram MIOL implanted within the eye model, an improvement in visual performance associated with the correction in longitudinal chromatic (45–55%) and longitudinal monochromatic aberration(55–65%) as compared with that of the healthy eye model. Similarly, the Strehl ratio for all cases is approximately equal to the Marshal’s value for the perfect optical system (0.8). The MTF with D/H hybrid MIOL has a higher value. The Strehl ratio for all cases is approximately equal to the Marshal’s value for the perfect optical system (0.8). The MTF at 50 (MTF<sub>50</sub>), at 150 (MTF150), and 200 (MTF<sub>200</sub>) cycle/mm for the eye with D/H hybrid MIOL has a higher value for both the Sagit1tal and Tangential MTF. 0.776, 0.368, 0.213, and 0.754, 0.287, 0.135), compared with that for Liou- Brennan model MTF (0.765, 0.351, 0.200, and 0.724, 0.270, 0.127), respectively. The vision with hybrid MIOLs implanted in the eye is better than that of the healthy eye model. Thus, the (MIOLs) proposed will allow end-users to minimize chromatic aberration and improve eye vision.</p>

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Polychromatic visual performance of different hologram multifocal hybrid intraocular lenses implanted within the human eye

  • 期刊论文

  • 发表日期：

    2025年5月20日

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  • Ali H. Al-Hamdani,
  • Hadeel T. Hashem,
  • Mohammad A. R. Hussein,
  • Hayfa G. Rashid,
  • Yasmeen Z. Dawood,
  • Anwer S. Aljuboury,
  • H. A. Al-Hamdani

摘要

The retinal image was strongly affected by chromatic and spherical aberrations. In this contribution, the optical quality and chromatic performance of hybrid (refractive-diffractive) multifocal intraocular lenses (MIOL) are designed to reduce chromatic aberrations. Four hybrid IOLs and holographic optical elements (HOEs) embedded in a refractive lens were evaluated. In this study, the human eye was implanted by one of the following hybrid multifocal length MIOL: A hologram/refractive (H/R), hologram/diffractive (H/D); refractive/hologram (R/H), and diffractive/hologram (D/R). Visual performance was assessed in white and green light at a pupil diameter of 3 mm and a field of view of 5 degrees. A single-layer coating from Poly(ethylene glycol) (PEG) in (QWOT) on the hologram surface was used. Using the Liou-Brennan eye model, the human eye was simulated to access vision quality, modulation transfer function (MTF), point spread function (PSF), chromatic focal shift (LCA), image spot size (RMS), and longitudinal aberrations (LSA). The present results were compared with and without (MIOLs). Results indicate that for all hybrid-hologram MIOL implanted within the eye model, an improvement in visual performance associated with the correction in longitudinal chromatic (45–55%) and longitudinal monochromatic aberration(55–65%) as compared with that of the healthy eye model. Similarly, the Strehl ratio for all cases is approximately equal to the Marshal’s value for the perfect optical system (0.8). The MTF with D/H hybrid MIOL has a higher value. The Strehl ratio for all cases is approximately equal to the Marshal’s value for the perfect optical system (0.8). The MTF at 50 (MTF50), at 150 (MTF150), and 200 (MTF200) cycle/mm for the eye with D/H hybrid MIOL has a higher value for both the Sagit1tal and Tangential MTF. 0.776, 0.368, 0.213, and 0.754, 0.287, 0.135), compared with that for Liou- Brennan model MTF (0.765, 0.351, 0.200, and 0.724, 0.270, 0.127), respectively. The vision with hybrid MIOLs implanted in the eye is better than that of the healthy eye model. Thus, the (MIOLs) proposed will allow end-users to minimize chromatic aberration and improve eye vision.