Astigmatism correction in direct ophthalmoscopy

Ala Hssain; Eva Acosta; Justo Arines

doi:10.1117/12.2527476

3 October 2019 Astigmatism correction in direct ophthalmoscopy

Ala Hssain, Eva Acosta, Justo Arines

Author Affiliations +

Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 112071Y (2019) https://doi.org/10.1117/12.2527476
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal

Abstract

We present experimental data using an artificial eye in order to show how much astigmatism significantly reduces the quality of the retinal images obtained with a panoptic direct ophthalmoscope with two different magnifications (no magnification and a 6x magnifier. We used an astigmatism correcting device built by our own to see the improvement in the images in case we correct the astigmatism with this device. The images were registered with an Ipad pro. The results show that small amounts of astigmatism do not distort significantly the images with low magnification but once we introduce magnification to the system or increase the magnitude of astigmatism its correction is important, for obtaining good quality images.

Citation Download Citation

Ala Hssain, Eva Acosta, and Justo Arines "Astigmatism correction in direct ophthalmoscopy", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112071Y (3 October 2019); https://doi.org/10.1117/12.2527476

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