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Repetitive visual cortex transcranial random noise stimulation in adults with amblyopia.

Author(s): Donkor R, Silva AE, Teske C, Wallis-Duffy M, Johnson AP, Thompson B

We tested the hypothesis that five daily sessions of visual cortex transcranial random noise stimulation would improve contrast sensitivity, crowded and uncrowded visual acuity in adults with amblyopia. Nineteen adults with amblyopia (44.2?±?14.9 years, 10 ...

Article GUID: 33542265
Assessing optimal colour and illumination to facilitate reading.

Author(s): Morrice E, Murphy C, Soldano V, Addona C, Wittich W, Johnson AP

PURPOSE: This study examined the effectiveness of the LuxIQ, the Apple iPad and a smart bulb in assessing optimal colour and illumination to facilitate reading in younger, older and visually impaired adults. METHODS: Participants read standardised texts at ...

Article GUID: 33533095
Congenital Deafness Leads to Altered Overt Oculomotor Behaviors.

Author(s): Sharp A, Turgeon C, Johnson AP, Pannasch S, Champoux F, Ellemberg D

Front Neurosci. 2020;14:273 Authors: Sharp A, Turgeon C, Johnson AP, Pannasch S, Champoux F, Ellemberg D

Article GUID: 32327967
Music predictability and liking enhance pupil dilation and promote motor learning in non-musicians.

Author(s): Bianco R, Gold BP, Johnson AP, Penhune VB

Sci Rep. 2019 Nov 19;9(1):17060 Authors: Bianco R, Gold BP, Johnson AP, Penhune VB

Article GUID: 31745159
Spatial summation of broadband contrast.

Author(s): Richard B, Hansen BC, Johnson AP, Shafto P

J Vis. 2019 May 01;19(5):16 Authors: Richard B, Hansen BC, Johnson AP, Shafto P

Article GUID: 31100132
Title:Assessing optimal colour and illumination to facilitate reading.
Authors:Morrice E,  Murphy C,  Soldano V,  Addona C,  Wittich W,  Johnson AP
Link:https://www.ncbi.nlm.nih.gov/pubmed/33533095
DOI:10.1111/opo.12785
Category:Ophthalmic Physiol Opt
PMID:33533095
Dept Affiliation: PSYCHOLOGY
1 Department of Psychology, Concordia University, Montréal, Canada.
2 CRIR/Centre de réadaptation Lethbridge-Layton-Mackay Réhabilitation Centre du Centre Intégré Universitaire de Santé et Services Sociaux (CIUSSS) Centre ouest de l'ile de Montréal, Montréal, Canada.
3 École d'optométrie, Université de Montréal, Montréal, Canada.
4 CRIR/Institut Nazareth et Louis-Braille du CISSS de la Montérégie-Centre, Longueuil, Canada.

Description:

Assessing optimal colour and illumination to facilitate reading.

Ophthalmic Physiol Opt. 2021 Feb 02; :

Authors: Morrice E, Murphy C, Soldano V, Addona C, Wittich W, Johnson AP

Abstract

PURPOSE: This study examined the effectiveness of the LuxIQ, the Apple iPad and a smart bulb in assessing optimal colour and illumination to facilitate reading in younger, older and visually impaired adults.

METHODS: Participants read standardised texts at baseline (normal lighting/no device), then using the Apple iPad, LuxIQ and smart bulb, with their normal vision (20/20 condition) and using a simulated reduction in visual acuity/contrast sensitivity (20/80 condition). Visually impaired participants followed the same procedure used in the 20/80 condition.

RESULTS: There was a significant interaction between condition and device in younger, F(1.5, 43.51) = 30.41, p < 0.001, ?2  = 0.34 and older, F(1.5, 4.51) = 4.51, p = 0.03, ?2  = 0.05 adults with normal vision, and there was a significant effect of device, F(2, 58) = 5.95, p = 0.004, ?2  = 0.12 in visually impaired adults. In the 20/20 condition, age and colour predicted reading speed, F(3, 176) = 36.25, p < 0.001, Adj. R2  = 0.37, whereas age, lighting and colour predicted reading speed, F(3, 176) = 36.25, p < 0.001, Adj. R2  = 0.37 in the 20/80 condition. In the visual impairment condition, lighting, colour and impairment severity predicted reading speed, F(3, 85) = 10.10, p < 0.001, Adj. R2  = 0.24.

CONCLUSIONS: The clinical implications of this study are that reading speeds improve in individuals with low vision under improved lighting conditions, specifically, with higher levels of luminance and colour temperature. The effectiveness of the devices varied across groups; however, the LuxIQ was the only device to improve reading speeds from baseline in older adults with visual impairments.

PMID: 33533095 [PubMed - as supplied by publisher]