Low-cost, high-resolution scanning laser ophthalmoscope for the clinical environment

P. Soliz; A. Larichev; G. Zamora; S. Murillo; E. S. Barriga

doi:10.1117/12.846365

2 March 2010 Low-cost, high-resolution scanning laser ophthalmoscope for the clinical environment

P. Soliz, A. Larichev, G. Zamora, S. Murillo, E. S. Barriga

Proceedings Volume 7550, Ophthalmic Technologies XX; 75501G (2010) https://doi.org/10.1117/12.846365
Event: SPIE BiOS, 2010, San Francisco, California, United States

Abstract

Researchers have sought to gain greater insight into the mechanisms of the retina and the optic disc at high spatial resolutions that would enable the visualization of small structures such as photoreceptors and nerve fiber bundles. The sources of retinal image quality degradation are aberrations within the human eye, which limit the achievable resolution and the contrast of small image details. To overcome these fundamental limitations, researchers have been applying adaptive optics (AO) techniques to correct for the aberrations. Today, deformable mirror based adaptive optics devices have been developed to overcome the limitations of standard fundus cameras, but at prices that are typically unaffordable for most clinics. In this paper we demonstrate a clinically viable fundus camera with auto-focus and astigmatism correction that is easy to use and has improved resolution. We have shown that removal of low-order aberrations results in significantly better resolution and quality images. Additionally, through the application of image restoration and super-resolution techniques, the images present considerably improved quality. The improvements lead to enhanced visualization of retinal structures associated with pathology.

Citation Download Citation

P. Soliz, A. Larichev, G. Zamora, S. Murillo, and E. S. Barriga "Low-cost, high-resolution scanning laser ophthalmoscope for the clinical environment", Proc. SPIE 7550, Ophthalmic Technologies XX, 75501G (2 March 2010); https://doi.org/10.1117/12.846365

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available