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Open AccessArticle

Photostress Testing Device for Diagnosing Retinal Disease

College of Optical Sciences, University of Arizona, 1630 E University Blvd, Tucson, AZ 85719, USA
Department of Aerospace and Mechanical Engineering, University of Arizona, 1130 N Mountain Ave, Tucson, AZ 85721, USA
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Photonics 2014, 1(3), 211-219;
Received: 14 July 2014 / Revised: 1 August 2014 / Accepted: 1 August 2014 / Published: 8 August 2014
(This article belongs to the Special Issue Optics and Technologies for Ophthalmology and Visual Science)
PDF [360 KB, uploaded 8 August 2014]


Retinal diseases such as Age-Related Macular Degeneration (ARMD) affect nearly one in three elderly patients. ARMD damages the central vision photoreceptors in the fovea. The Photostress Test is a simple technique for testing for the early effects of ARMD. Here, the illumination sources in a novel self-administered Photostress Testing device were modeled for safety and distribution in illumination software. After satisfying the design constraints in the model, a prototype of the illumination system was fabricated and tested to confirm the modeling results. The resultant prototype can be used to aid in the diagnosis of retinal disease and is well within retinal safety levels. View Full-Text
Keywords: photostress tester; Age-Related Macular Degeneration; Badal Lens photostress tester; Age-Related Macular Degeneration; Badal Lens

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Swan, E.; Schwiegerling, J.; Peyman, G.; Enikov, E. Photostress Testing Device for Diagnosing Retinal Disease. Photonics 2014, 1, 211-219.

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