Abstract

It is technically difficult to construct wide-angle fundus imaging devices due to the complexity of conventional transpupillary illumination and imaging mechanisms. We report here a new method, i.e., trans-palpebral illumination, for wide-angle fundus photography without the need for pupil dilation. By constructing a smartphone-based prototype imaging device, we demonstrated a 152° view in a single-shot image. The unique combination of low-cost smartphone design and automatic illumination optimization promises an affordable solution to conduct telemedicine assessment of eye diseases, which will improve access to eye care for patients in rural and underserved areas.

© 2016 Optical Society of America

Evaluating spatial dependency of the spectral efficiency in trans-palpebral illumination for widefield fundus photography

Mojtaba Rahimi, Alfa Rossi, Taeyoon Son, Devrim Toslak, David Le, Mansour Abtahi, Michael J. Heiferman, R. V. Paul Chan, and Xincheng Yao
Biomed. Opt. Express 14(11) 5629-5641 (2023)

Near-infrared light-guided miniaturized indirect ophthalmoscopy for nonmydriatic wide-field fundus photography

Devrim Toslak, Changgeng Liu, Minhaj Nur Alam, and Xincheng Yao
Opt. Lett. 43(11) 2551-2554 (2018)

Trans-pars-planar illumination enables a 200° ultra-wide field pediatric fundus camera for easy examination of the retina

Devrim Toslak, Felix Chau, Muhammet Kazim Erol, Changgeng Liu, R. V. Paul Chan, Taeyoon Son, and Xincheng Yao
Biomed. Opt. Express 11(1) 68-76 (2020)

Fundus Photography without Cycloplegics

Kathyrn Louise Stone and M. L. Pool
J. Opt. Soc. Am. 29(11) 463-465 (1939)

Multi-modal adaptive optics system including fundus photography and optical coherence tomography for the clinical setting

Matthias Salas, Wolfgang Drexler, Xavier Levecq, Barbara Lamory, Markus Ritter, Sonja Prager, Julia Hafner, Ursula Schmidt-Erfurth, and Michael Pircher
Biomed. Opt. Express 7(5) 1783-1796 (2016)