July 2019
Volume 60, Issue 9
ARVO Annual Meeting Abstract  |   July 2019
Perceptual differences across binocular corrections for presbyopia
Author Affiliations & Notes
  • Xoana Barcala
    Consejo Superior de Investigaciones Cientificas, IO-CSIC, Madrid, Spain
    2Eyes Vision, Spain
  • Maria Vinas
    Consejo Superior de Investigaciones Cientificas, IO-CSIC, Madrid, Spain
  • enrique Gambra
    2Eyes Vision, Spain
  • Susana Marcos
    Consejo Superior de Investigaciones Cientificas, IO-CSIC, Madrid, Spain
  • Carlos Dorronsoro
    Consejo Superior de Investigaciones Cientificas, IO-CSIC, Madrid, Spain
  • Footnotes
    Commercial Relationships   Xoana Barcala, 2Eyes Vision (E); Maria Vinas, 2Eyes Vision (I); enrique Gambra, 2Eyes Vision (I), 2Eyes Vision (E); Susana Marcos, 2Eyes Vision (I), PCT/2014ES/070725 (P), PCT/ES2010/070218 (P), PCT/ES2016/070673 (P); Carlos Dorronsoro, 2Eyes Vision (I), PCT/2014ES/070725 (P), PCT/ES2010/070218 (P), PCT/ES2016/070673 (P)
  • Footnotes
    Support   Spanish Government Grant FIS2014-56643-R; FIS2017-84753-R; ISCIII​ DTS16/00127; PTQ-15-07432; CAM IND2017/BMD7670; European Project Presbyopia ERC-2011-AdG 294099
Investigative Ophthalmology & Visual Science July 2019, Vol.60, 6469. doi:https://doi.org/
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      Xoana Barcala, Maria Vinas, enrique Gambra, Susana Marcos, Carlos Dorronsoro; Perceptual differences across binocular corrections for presbyopia. Invest. Ophthalmol. Vis. Sci. 2019;60(9):6469. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Purpose : A binocular simultaneous vision simulator and a multidimensional metric (Multifocal Acceptance Score to Evaluate Vision;MAS-2EV) were used to assess perceived visual quality of different binocular presbyopic corrections in cyclopleged young subjects and presbyopic subjects

Methods : A wearable simulator (SimVisGekko,2EyesVision) operating under the principle of temporal multiplexing was used to simulate four binocular presbyopic corrections: Monofocal-far(FF); Bifocal(BB); Monovision far(dominant eye)/near(FN); Modified monovision far(dominant eye)/bifocal(FB).Near add was +2.50D. Tests were performed on 10 subjects:5 cyclopleged young subjects(22-38 yo;SE:-2.45±2.11D) and 5 non-cyclopleged presbyopes(57-68 yo;SE:+1.05±0.45D; accommodation amplitude 1.4±0.2D from PowerRefractor II,PlusoptiX). MAS-2EV is a multicomponent vector comprising stereoscopic vision and 4 perceptual scores (PS,0-10 range) of image quality at far/near distance of day/night using multi-image stimuli presented on a HDR monitor(far at 4m) and a tablet(iPad-retina at 40cm),respectively.Subjects judged the perceived quality (PS) of the images with the 4 corrections (10 repetitions).Results from MAS-2EV were graphically represented as a polygon,numerically summarized by its modulus (0-10).

Results : MAS-2EV was 6.26 PS on average(avg), and varied across subjects, corrections and conditions, covering a higher range in cyclopleged subjects (PS difference=8.0±1.4) than in presbyopic (6.3±1.9). MAS-2EV was highly repetitive across the 10 repetitions (avg std across subjects and conditions: 1.0). For each binocular correction, the PS difference across subjects and conditions ranged from 6.3 to 10. For Far, FF produced the best PS in all subjects (PSF=9.31±0.62), followed by FB (PSF=8.03±0.68)-highest in 8/10 subjects- and FN (PSF=7.57±1.04)–highest in 2/10-. PS for Near (PSN) was lower than for Far, with best PS for FN (PSN=7.01±2.20)–best in 7/10-and BB (PSN=5.36±1.81)–best in 3/10-. On avg PS(near/far;day/night) was highest for FN (PS=7.29±1,70)–best in 7/10- and BB (PS=5.25±1.65 )–best in 3/10-. However,stereopsis was lowest for FN in all subjects (80” on avg), compared to the other corrections (40”). The best balance between Near and Far vision for all subjects was provided by BB correction (PSF-PSN=0.22).

Conclusions : The combination of visual simulators and MAS-2EV metric is a promising tool for non-invasive selection of presbyopic corrections in the clinic.

This abstract was presented at the 2019 ARVO Annual Meeting, held in Vancouver, Canada, April 28 - May 2, 2019.


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