Optical bench simulation for intraocular lenses using field-tracing technology
| Autor: | Son H, Oh Sj, Sang Heon Song, In-Seok Song, Minhee Kang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Diffraction
Computer and Information Sciences Materials science Image quality Ocular Anatomy Tracing Prosthesis Design Research and Analysis Methods Computer Software Cornea Optics Ocular System Optical transfer function Medicine and Health Sciences Humans Computer Simulation Lenses Intraocular Multidisciplinary Eye Lens business.industry Physics Simulation and Modeling Electromagnetic Radiation Software Engineering Biology and Life Sciences Strehl ratio Spherical aberration Tilt (optics) Physical Sciences Waves Engineering and Technology Eyes Ray tracing (graphics) Anatomy Electromagnetic Interference business Head Research Article |
| Zdroj: | PLoS ONE |
| Popis: | Purpose To evaluate the image quality of intraocular lenses (IOLs) using field-tracing optical simulation and then compare it with the image quality using conventional ray-tracing simulation. Methods We simulated aspheric IOLs with a decenter, tilt, and no misalignment using an aspheric corneal eye model with a positive spherical aberration. The retinal image, Strehl ratio, and modulation transfer function (MTF) were compared between the ray-tracing and field-tracing optical simulation and confirmed by the results reported in an in vitro experiment using the same eye model. Results The retinal image showed interference fringes from target due to diffraction from the object in a field-tracing simulation. When compared with the experimental results, the field tracing represented the experimental results more precisely than ray tracing after passing over 400 μm of the decentration and 4 degrees of the tilt of the IOLs. The MTF values showed similar results for the case of no IOL misalignment in both the field tracing and ray tracing. In the case of the 200-μm decentration or 8-degree tilt of IOL, the field-traced MTF shows lower values than the ray-traced one. Conclusions The field-tracing optical bench simulation is a reliable method to evaluate IOL performance according to the IOL misalignment. It can provide retinal image quality close to real by taking into account the wave nature of light, interference and diffraction to explain to patients having the IOL misalignment. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|