Relationship between visual therapy vectograms and accommodative parameters in young healthy subjects

Hugo Pena-Verdeal; Rosa Calo-Santiago; Silvia Garcia-Montero; Covadonga Vazquez-Sanchez; Maria J. Giraldez

doi:10.1117/12.2527351

3 October 2019 Relationship between visual therapy vectograms and accommodative parameters in young healthy subjects

Hugo Pena-Verdeal, Rosa Calo-Santiago, Silvia Garcia-Montero, Covadonga Vazquez-Sanchez, Maria J. Giraldez

Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 112071C (2019) https://doi.org/10.1117/12.2527351
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal

Abstract

Purpose: Tranaglyphs and Vectograms are visual therapy material based on red/green or polarized targets respectively that used similar but slightly different images for each eye to train fusion and vergence skills. This study aimed to analyse the relationship of three accommodative parameters (the Negative Relative Accommodation [NRA], the Positive Relative Accommodation [PRA] and the Accommodative Amplitude [AA]) with the results of four different visual therapy vectograms/tranaglyphs. Material and methods: 45 subjects free of any accommodative or binocular problem were recruited among students attending the Optometry Clinic of the Optometry Faculty (USC). In a first session, the accommodative tests were performed according to their standard protocols. In a second session, following manufacturer’s instructions, the subjects performed in a random order four different calibrated vectograms/tranaglyphs: two red/green Variable Demand Anaglyphs (one based on circles [VDA-C] and one on draws [VDA-D]), one red/green Fixed Demand Anaglyph [FDA], and one polarized with Variable Demand [VDP]. Subjects were asked to indicate the maximum value both base-out (BO) and base-in (BI), where the image fusion was lost. Results: NRA showed a negative correlation with the BO results of the VDP (p = 0.040, r = -0.270). PRA showed a negative correlation with the BO results of the VDA-C, the VDA-D and the VDP (all p ≤0.017, r ≥ -0.323). AA showed a positive correlation with the BI results of the VDA-D, the FDA, and the VDP (all p ≤0.013, r ≥0.341). Conclusion: Accommodation seems to have some influence on the visual therapy training with vectograms and tranaglyphs.

Citation Download Citation

Hugo Pena-Verdeal, Rosa Calo-Santiago, Silvia Garcia-Montero, Covadonga Vazquez-Sanchez, and Maria J. Giraldez "Relationship between visual therapy vectograms and accommodative parameters in young healthy subjects", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112071C (3 October 2019); https://doi.org/10.1117/12.2527351

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Bismuth

Visualization

Statistical analysis

Image fusion

Glasses

Analytical research

Eye

Show All Keywords

Keywords/Phrases

Search In:

Publication Years