Inspection of Intraocular Lens With Dual-Side View Optical Coherence Tomography
| Autor: | Linbo Liu, Xiwen Wang, Jianhua Mo, Qian Wu |
|---|---|
| Přispěvatelé: | School of Electrical and Electronic Engineering |
| Rok vydání: | 2021 |
| Předmět: |
Materials science genetic structures medicine.medical_treatment intraocular lens Intraocular lens Curvature 01 natural sciences 010309 optics 03 medical and health sciences 0302 clinical medicine Optics Optical coherence tomography Sampling (signal processing) 0103 physical sciences medicine Applied optics. Photonics inspection Electrical and Electronic Engineering dual-side view medicine.diagnostic_test business.industry QC350-467 Optics. Light Refraction eye diseases Atomic and Molecular Physics and Optics Treatment efficacy TA1501-1820 Electrical and electronic engineering [Engineering] Dual-Side View 030221 ophthalmology & optometry Surface contour sense organs Optical Coherence Tomography business Refractive index |
| Zdroj: | IEEE Photonics Journal, Vol 13, Iss 3, Pp 1-10 (2021) |
| ISSN: | 1943-0647 |
| Popis: | Intraocular lens (IOL) is widely used for cataract treatment. Its optical properties are crucial to obtain a good treatment efficacy and thus need to be evaluated and controlled. In this study, we propose a novel method based on optical coherence tomography (OCT) for noncontact and accurate in vitro measurement of thickness, refractive index and dioptric power of IOL implants. The OCT setup is specially designed to create two sampling optics, called dual-side view OCT (DSV-OCT), which allows for imaging IOL from the two opposite sides simultaneously in single OCT volume scanning. This can produce a three-dimensional surface contour without suffering image distortions due to the refraction of the curved surface. Then, the thickness and surface curvature can be easily computed from the surface contours. In addition, DSV-OCT is able to measure the refractive index. Three IOLs with different dioptric powers (5D, 20D and 28D) were chosen to evaluate this method. The results show that this method is capable to provide a comprehensive and accurate evaluation of IOLs from the aspects of thickness, refractive index and dioptric power, and hence can be potentially used as a quality assurance tool by IOL manufacturers. Ministry of Education (MOE) Ministry of Health (MOH) National Medical Research Council (NMRC) Published version This work was supported in part by the National Natural Science Foundation of China under Grant 81401451, in part by the Natural Science Foundation of the Jiangsu Province under Grant BK20140365, in part by the Postgraduate Research & Practice Innovation Program of Jiangsu Province under Grant 5832001320, in part by the Singapore Ministry of Health’s National Medical Research Council under its Open Fund Individual Research under Grant MOH-OFIRG19may-0009, and in part by the Ministry of Education Singapore under its Academic Research Fund under Grants 2018-T1-001-144 and T2EP30120-0001. |
| Databáze: | OpenAIRE |
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