Eye movements as a predictor of preference for progressive power lenses

Concepcion-Grande, Pablo; González, A.; Chamorro, Eva; Cleva, José Miguel; Alonso, José María Rabal; Gómez‐Pedrero, José A.

doi:10.16910/jemr.15.2.6

Cited by 6 publications

(4 citation statements)

References 34 publications

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“…The results showed that reading time and number of fixations were higher when subjects were using PPLs in comparison with single-vision lenses. Another study from Concepcion et al [ 26 ], recorded eye movements using a Tobii X3-120 ET system on 38 presbyopic subjects while using two different PPLs. Subjects were asked to read out loud a text on a computer screen located at 0.67m, at on-axis and off-axis viewing position.…”

Section: Discussionmentioning

confidence: 99%

“…The study of Han et al [ 24 , 25 ] used ET techniques to determine eye movements differences between PPLs and single-vision lenses. Concepcion et al [ 26 ] analyzed the differences in visual behavior of different visual areas of the PPLs during reading on a computer screen. Rifai et al [ 27 ] evaluated eye and head movements during driving in PPL users in comparison with non-PPL users.…”

Section: Introductionmentioning

confidence: 99%

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Correlation between reading time and characteristics of eye fixations and progressive lens design

Concepcion-Grande¹,

Chamorro²,

Cleva³

et al. 2023

PLoS ONE

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Objective The purpose of this study is to evaluate reading time and characteristics of fixations at different distances when looking through different areas of progressive power lenses (PPL) with different power distributions by means of eye-tracking technology. Method A wearable eye tracker system (Tobii-Pro Glasses 3) was used to record the pupil position of 28 PPL subjects when reading at near and distance vision while using 3 different PPL designs: a PPL optimized for distance vision (PPL-Distance), a PPL optimized for near vision (PPL-Near) and one of them balanced for a general use (PPL-Balance). Subjects were asked to read out loud a text displayed on a digital screen located at 5.25m and 0.37m when they were looking through the central and peripheral regions of each PPL. Reading time, total duration of fixations, and the number of fixations were analyzed for each reading condition and PPL. Statistical analysis was carried out using Statgraphics Centurion XVII.II Software. Results The analysis of eye movements at distance-reading vision showed a statistically significant lower reading time (p = 0.004) and lower total duration of fixations (p = 0.01) for PPL-Distance. At near-reading vision, PPL-Near provided statistically significant lower reading time (p<0.001), lower total duration of fixations (p = 0.02), and less fixation count(p<0.001) in comparison with PPL-Balance and PPL-Distance. Conclusions Reading time and fixations characteristics are affected by the power distribution of a PPL. A PPL design with a wider distance region provides better distance-reading performance while a PPL with a wider near area performs better at a near-reading task. The power distribution of PPLs influences the user performance at vision-based tasks. Thus, to provide the user with the best visual experience, PPL selection must consider user needs.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correlation between reading time and characteristics of eye fixations and progressive lens design

Concepcion-Grande¹,

Chamorro²,

Cleva³

et al. 2023

PLoS ONE

Self Cite

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“…According to TUIK 2021 [1] data, it is stated that the use of glasses or lenses has increased by 2.6% and the number of individuals blind increased by 0.3%. This situation has led manufacturers to increase the number of contact lenses.…”

Section: Introductıonmentioning

confidence: 99%

Farklı Türden Kontak Lenslerin Ultraviyole Işık Geçirgenliğinin Ölçülmesi

BARLIK,

ATEŞ

2023

Turkish Journal of Science and Technology

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Scientific evidence showing the harmful effects of ultraviolet radiation on different ocular tissues has led manufacturers to incorporate UV-blocking monomers into contact lenses. In this study, the spectral and optical properties of contact lenses were analyzed in the ultraviolet and visible light wavelength ranges using the Jasco V-730 UV/VIS spectrophotometer device. The results obtained showed that in the lens samples examined, the light transmittance in the wavelength (550nm) range to which the human eye is most sensitive is over 70% and the maximum value is 72.98% in B contact lenses. The largest cutting edge wavelength value was obtained in the A contact lens as 376 nm. At 550 nm, the absorption spectra were found to be below 0.12. In terms of visual quality, visible light transmittance is expected to be high and ultraviolet light transmittance is expected to be minimal. The degree of damage caused by the amount of ultraviolet light absorption increases. Among the contact lenses with and without ultraviolet-protected monomers, lens A did not transmit the UV-B wavelength region, while lens B transmitted UV-A and UV-B wavelengths. This result showed that the protection of lens A was higher. It is seen that the UV transmittance taken with the phocometer is 45% UV in A lens and 91% UV in B lens. The results obtained by UV/VIS spectrophotometer and phocometer supported each other. The results will contribute to the literature by revealing the importance of UV-protected monomer-containing contact lenses in vision equipment, and by enabling the development and selection of full-protection contact lenses.

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“…25 Despite MFCLs and PAL spectacles being designed to offer clear vision at all viewing distances, there are relatively few reports in the literature where eye or head movement metrics are investigated across multiple viewing distances. Perhaps due to the additional experimental complexity required to collect measures across multiple distances, published work relating to eye and head movements in presbyopia has largely incorporated either a single viewing distance, such as at near, 24,25 intermediate 22,26 or in some reports, two viewing distances being investigated. 23,27,28 This investigation set out to address this gap in the literature by investigating eye and head movements at three viewing distances (distance, intermediate and near) for SVCLs (acting as a control), MFCLs and PAL spectacles, and to simulate real-world viewing conditions by adopting natural postures and head movements in visually familiar environments.…”

mentioning

confidence: 99%

Gaze and behavioural metrics in the refractive correction of presbyopia

Smith,

Maldonado‐Codina,

Morgan

et al. 2024

Ophthalmic Physiologic Optic

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PurposeTo investigate gaze and behavioural metrics at different viewing distances with multifocal contact lenses (MFCLs), single vision contact lenses (SVCLs) and progressive addition lenses (PALs).MethodsFifteen presbyopic contact lens wearers participated over five separate study visits. At each visit, participants were randomly assigned to wear one of five refractive corrections: habitual PAL spectacles, delefilcon A (Alcon Inc.) MFCLs and three separate pairs of delefilcon A single vision lenses worn as distance, intermediate and near corrections. Participants wore a Pupil Core headset to record eye and head movements while performing three visual tasks: reading, visual search and scene observation. Data were investigated using linear regression and post‐hoc testing. Parameters of interest included gaze (fixation duration, head movement) and behavioural (reading speed, reading accuracy, visual search time) metrics.ResultsReading speed in SVCLs was significantly faster than in MFCLs and PAL spectacles (F = 16.3, p < 0.0001). Refractive correction worn did not influence visual search times (F = 0.16, p = 0.85). Fixation duration was significantly affected by the type of visual task (F = 60.2, p < 0.001), and an interaction effect was observed between viewing distance and refractive correction (F = 4.3, p = 0.002). There was significantly more horizontal and vertical head movement (F = 3.2, p = 0.01 and F = 3.3, p = 0.01, respectively) during visual search tasks when wearing PAL spectacles compared to SVCLs or MFCLs.ConclusionThis work showed that the type of refractive correction affects behavioural metrics such as reading speed and gaze behaviour by affecting horizontal and vertical head movements. The findings of this study suggest that under certain conditions, wearers of MFCLs make fewer head movements compared to PAL spectacles. Gaze behaviour metrics offer a new approach to compare and understand contact lens and spectacle performance, with potential applications including peripheral optical designs for myopia management.

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Eye movements as a predictor of preference for progressive power lenses

Cited by 6 publications

References 34 publications

Correlation between reading time and characteristics of eye fixations and progressive lens design

Correlation between reading time and characteristics of eye fixations and progressive lens design

Farklı Türden Kontak Lenslerin Ultraviyole Işık Geçirgenliğinin Ölçülmesi

Gaze and behavioural metrics in the refractive correction of presbyopia

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