Lighting Environment for Low Vision Persons

Effectiveness Schema Therapy on Rejection Sensitivity in Blind and Low-Vision Persons

Objective: The purpose of this study is to investigate the effectiveness Schema therapy on rejection sensitivity in blind and low-vision persons. Method: This study is a semi -experimental study with pre-test, post-test and follow-up test with control group. For this purpose the statistical population of study, included all blind and low-vision persons of Ababasir Educational Institute for the ...

Dynamic Lighting Sign System for Way-Finding by People with Low Vision

Design for Low Power HB-LED Lighting

This paper presents an improved power quality converter (IPQC) based power supply design for high brightness Light Emitting Diode (HB-LED) low power lighting. The IPQC circuit uses a Cuk buck-boost converter to operate it in discontinuous conduction mode (DCM) using voltage follower technique for the mitigation of harmonic contents present in the AC mains current. Subsequently reduction in harm...

Perceived visual ability for functional vision performance among persons with low vision in the Indian state of Andhra Pradesh.

PURPOSE To determine the distribution of perceived visual ability for functional vision performance among persons with low vision in the Indian state of Andhra Pradesh. METHODS As part of a population-based epidemiologic study, the Andhra Pradesh Eye Disease Study (APEDS), a 16-item visual function questionnaire was designed and applied to 7363 persons older than 15 years, to record the level...

Effects of Background Lighting Color and Movement Distance on Reaching Times Among Participants With Low Vision, Myopia, and Normal Vision.

This study investigated the effects of target distance (30, 35, and 40 cm) and the color of background lighting (red, green, blue, and yellow) on the duration of movements made by participants with low vision, myopia, and normal vision while performing a reaching task; 48 students (21 women, 27 men; M age = 21.8 year, SD = 2.4) participated in the study. Participants reached for a target (a whi...