Lisbon 2017 Delegate Registration Programme Exhibition Virtual Exhibition Satellites OneWorld Travel Discount
escrs app advert

Liquid Optics™ interface of Catalys® as optical resource for low visual patients

Search Title by author or title

Session Details

Session Title: Presented Poster Session: Quality of Vision/Miscellaneous

Venue: Poster Village: Pod 3

First Author: : N.Yanagimori BRAZIL

Co Author(s): :    O. Naves   R. Hida   P. Froiman   A. Carvalho   G. Rinaldo   I. Teixeira

Abstract Details

Purpose:

Improve the functional capacity and independence of the visually impaired by transforming Liquid opticsTM interface of Catalys®, which would be discarded, for visual rehabilitation as a low-cost optical resource. Therefore, contributing to the environmental sustainability and social inclusion of patients with low vision and low income. 

Setting:

Irmandade Santa Casa de Misericórdia de São Paulo.

Methods:

Patients with low vision and who never used magnifying lens were selected to participate in the current prospective study. They were trained for 1 month with the Liquid opticsTM interface of Catalys® as magnifying lens, which was fitted with a holder made of recyclable material from the top of a transparent PET bottle with 11.5 centimeter height. It was evaluated by a questionnaire identified as National Eye Institute-Visual Function Questionnaire-25 (NIV VFQ-25) and the MNREAD® test adapted to Portuguese. They were applied by the author in two distinct moments, before and after training, with and without the optical resource.

Results:

Ten patients were evaluated, being 7 women and 3 men. All with subnormal vision and different diagnoses (advanced glaucoma, Neovascular age-related macular degeneration, retinitis pigmentosa and proliferative diabetic retinopathy). The mean age was 56.9 ± 19.12 years. The difference, with and without the optical resource, of Reading parameters of patients examined by MNREAD, after training were: maximum reading speed (MRS), 8.90 ± 14.98 words per min.; critical print size (CPS), 0.24 ± 0.16 logMAR; reading acuity (RA), 0.28 ± 0.14 log MAR. Furthemore, the variation of NIV VFQ-25 in first and second moments was 13.13 ± 5,01 score points.

Conclusions:

Low vision deteriotes the quality of life by making simple daily activities, such as reading, more difficult and complex to be done. The Liquid opticsTM interface of Catalys® as optical resource increased the reading parameters, quantitatively, and reflected in improvement of the total score of NIV VFQ-25. In addition, it was recycled, giving another funcion to what was considered hospital waste.

Financial Disclosure:

NONE

Back to previous