Optical imaging performance of an extended depth of focus intraocular lens compared to its monofocal platform
This work presents a comparative optical evaluation of a refractive extended depth of focus (EDOF) intraocular lens and a monofocal intraocular lens, both based on the same structural platform, allowing differences in performance to be attributed to the lens design itself. EDOF designs address the g...
| Autor: | |
|---|---|
| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/452362 |
| Acceso en línea: | https://hdl.handle.net/2117/452362 |
| Access Level: | acceso abierto |
| Palabra clave: | Intraocular lenses Intraocular lens Depth of focus Model eye Optical image quality Modulation transfer function Halo Visual acuity Lents intraoculars Àrees temàtiques de la UPC::Ciències de la visió::Instruments òptics i optomètrics::Lents oftàlmiques |
| Sumario: | This work presents a comparative optical evaluation of a refractive extended depth of focus (EDOF) intraocular lens and a monofocal intraocular lens, both based on the same structural platform, allowing differences in performance to be attributed to the lens design itself. EDOF designs address the growing demand for improved vision at multiple distances after cataract surgery, while minimizing dysphotopsia (halos and glare). In this work, optical image quality was evaluated through in vitro measurements of the modulation transfer function (MTF) and the integrated MTF area (MTFa) across a range of focus positions and pupil sizes. Simulated visual acuity was derived from the optical data to estimate functional visual performance, and halo patterns were analyzed using a standardized imaging method. The monofocal lens provided sharp image quality at far distance but showed a steep decline with small amounts of defocus. In comparison, the EDOF lens maintained stable image quality over a wider focus range, supporting clearer vision at intermediate distances. It showed greater dependence on pupil size but responded better to slight focusing errors. Overall, the EDOF design offers an effective balance between image sharpness and extended vision, making it a suitable option for patients seeking spectacle independence without increasing visual discomfort. |
|---|