Validation of a web-based distance visual acuity test

Labiris, Georgios; Panagiotopoulou, Eirini-Kanella; Delibasis, Konstantinos K.; Duzha, Erald; Bakirtzis, Minas; Panagis, Christos; Boboridis, Kostas; Mokka, Agni; Balidis, Miltos; Damtsi, Charoula; Ntonti, Panagiota

doi:10.1097/j.jcrs.0000000000001176

Cited by 5 publications

(4 citation statements)

References 26 publications

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“…Over the last several years, multiple tests measuring CS and VA have been developed on multiple platforms such as computer devices and made commercially available for testing. However it was only until recently that these tests were created for use on remote devices such as iPads and Tablets (Habtamu et al, 2019;Kollbaum et al, 2014;Labiris et al, 2023). For example, (Habtamu et al, 2019) While all of these studies show reliable measures akin to ours, our platform offers a one-stop solution to conduct multiple vision-based tests on a single platform.…”

Section: Discussionmentioning

confidence: 88%

PLFest: A new platform for accessible, reproducible and open perceptual learning research

Jayakumar,

Maniglia,

Guan

et al. 2024

Preprint

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In recent decades, perceptual learning (PL) has witnessed significant advancements, but the field has faced questions regarding reliability, replication issues, and challenges in understanding individual differences, hindering accessibility to diverse populations. To address these issues, we introduce PLFest, a novel, cross-platform UNITY-based app designed to promote accessible, reproducible, and open PL research. PLFest supports a variety of training and assessment procedures, focusing on psychophysics and PL of contrast sensitivity. It facilitates data collection on computers, tablets, and smartphones, enhancing accessibility and portability, making it ideal for large-scale, multi-site studies. PLFest aims to promote open science, data sharing, and reproducible research, fostering collaboration within the research community. As a first step, to validate PLFest, we conducted tests on healthy participants, assessing visual acuity and contrast sensitivity on both desktop and tablet setups. These measures were specifically chosen as they represent fundamental assessments of visual functions in healthy and clinical populations and are also known to be sensitive to display characteristics. The results demonstrated that PLFest produces reliable measurements, in particular on Apple iPad tablets, suggesting that the app is appropriate for visual psychophysics. This validation supports PLFest as a robust platform for PL research, emphasizing its potential to overcome limitations associated with high-end desktop/monitor setups and ensuring its applicability across diverse hardware configurations.

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Section: Discussionmentioning

confidence: 88%

PLFest: A new platform for accessible, reproducible and open perceptual learning research

Jayakumar,

Maniglia,

Guan

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Bilateral postoperative uncorrected distance visual acuity (UDVA) was measured at 25.5 cm, 28 cm, 33 cm, 40 cm, 50 cm, 66 cm, 100 cm, 200 cm, and 300 cm using the digital biometric distance feature of the DDART, as described before. [9][10][11] Self-reported, vision-specific quality of life was evaluated with the Greek version of the National Eye Institute Visual Functioning Questionnaire-25 (NEI-VFQ-25) instrument. 16 Plotting of VA Curves DDART-derived UDVA measurements provided the necessary data for accurate plotting of the vision acuity curves.…”

Section: Data Collectionmentioning

confidence: 99%

“…These features allow the accurate assessment of VA at any user-defined distance and calculation of the actual VA curve in a similar way to the DCT, but without the inadequacies of the latter. [9][10][11] The Panoptix intraocular lens (IOL) (Alcon Laboratories, Inc.) is a trifocal, nonapodized, diffractive IOL of an acrylate/methacrylate copolymer. Besides near vision at 40 cm and distance vision (>4 m), it has the ability to enhance intermediate distance vision at 60 cm.…”

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confidence: 99%

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Mix-and-match vs bilateral trifocal and bilateral EDOF intraocular lens implantation: the spline curve battle

Labiris,

Panagis,

Ntonti

et al. 2024

J Cataract Refract Surg

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Purpose: To compare the postoperative vision acuity curves following three pseudophakic presbyopic correction techniques. Setting: Department of Ophthalmology, University Hospital of Alexandroupolis, Alexandroupolis, Greece Design: Prospective, randomized, comparative trial Methods: Stage 2 LOCS-III Cataract patients populated three study groups: a) Premium Monovision Group who received the Panoptix intraocular lens (IOL) in the recessive eye and the Vivity IOL in the dominant one, b) Bilateral Trifocal Group who received bilaterally the Panoptix IOL, and, c) Bilateral xEDOF Group who received bilaterally the Vivity IOL. Postoperative bilateral uncorrected vision acuity (UVA) was measured at 25.5, 28, 33, 40, 50, 66, 100, 200 and 300cm distances. Spline curve fitting was attempted and areas of the curves (AOC) and Curvatures k were calculated. All patients responded to the NEI-VFQ-25 questionnaire. Results: 90 patients populated equally the three groups. Premium monovision and bilateral trifocal implantation delivered similar visual acuity (all AOC p>0.05); however the trifocal patients suffered from vision acuity drops in certain distance ranges as expressed in negative curvature values. Bilateral xEDOF patients demonstrated worse near vision acuity (p<0.05). Premium monovision patients reported better scores in NEI-VFQ 25 (p=0.03) and in the near activities (p=0.02) and distant activities subscales (p=0.04). Conclusion: All surgical options provide impressive outcomes. Premium monovision seems to deliver the best results.

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PLFest: A New Platform for Accessible, Reproducible, and Open Perceptual Learning Research

Jayakumar,

Maniglia,

Guan

et al. 2024

J Cogn Enhanc

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Validation of a web-based distance visual acuity test

Abstract: DDART is a valid web-based visual acuity test not only for the near and intermediate vision assessment but also for distance vision and can provide reliable measurements in telemedical settings.

Cited by 5 publications

References 26 publications

PLFest: A new platform for accessible, reproducible and open perceptual learning research

PLFest: A new platform for accessible, reproducible and open perceptual learning research

Mix-and-match vs bilateral trifocal and bilateral EDOF intraocular lens implantation: the spline curve battle

PLFest: A New Platform for Accessible, Reproducible, and Open Perceptual Learning Research

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