Development of a Smartphone-based Pupillometer for Neuro-ophthalmological Diseases Screening

Ana Isabel Sousa, Rui Valente Almeida, Maria Narciso, Fernando Sacilotto Crivellaro, Carlos Marques Neves, Luís Abegão Pinto, Pedro Vieira

2020

Abstract

Over the last two decades pupillometry gained a renewed interest, due to the discovery of intrinsically photosensitive retinal ganglion cells (ipRGCs) and their function in pupil light reflex (PLR). This technique is usually used to assess patient’s neurological state and has been researched as a screening tool for neuro-ophthalmological diseases. Several automated pupillometers have been developed, as they allow a quantitative measure of PLR, but most of them are expensive and not portable, which reduces their possibility to be a widespread screening tool. Taking advantage of low price and accessible smartphone technology, a smartphone-based pupillometer was developed in this work. An Android application was developed that allows pupil’s dynamic video recording and its processing for pupil detection. The preliminary tests made to validate the application and the algorithms have shown that the proposed system is a promising tool for a simple, inexpensive and portable pupillometry.

Paper Citation

in Harvard Style

Isabel Sousa A., Almeida R., Narciso M., Crivellaro F., Neves C., Pinto L. and Vieira P. (2020). Development of a Smartphone-based Pupillometer for Neuro-ophthalmological Diseases Screening. In Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2020) - Volume 1: BIODEVICES; ISBN 978-989-758-398-8, SciTePress, pages 50-56. DOI: 10.5220/0008962600500056

in Bibtex Style

@conference{biodevices20,
author={Ana Isabel Isabel Sousa and Rui Valente Almeida and Maria Narciso and Fernando Sacilotto Crivellaro and Carlos Marques Neves and Luís Abegão Pinto and Pedro Vieira},
title={Development of a Smartphone-based Pupillometer for Neuro-ophthalmological Diseases Screening},
booktitle={Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2020) - Volume 1: BIODEVICES},
year={2020},
pages={50-56},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008962600500056},
isbn={978-989-758-398-8},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 13th International Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC 2020) - Volume 1: BIODEVICES
TI - Development of a Smartphone-based Pupillometer for Neuro-ophthalmological Diseases Screening
SN - 978-989-758-398-8
AU - Isabel Sousa A.
AU - Almeida R.
AU - Narciso M.
AU - Crivellaro F.
AU - Neves C.
AU - Pinto L.
AU - Vieira P.
PY - 2020
SP - 50
EP - 56
DO - 10.5220/0008962600500056
PB - SciTePress