Home Monitoring for Age-Related Macular Degeneration

Chaikitmongkol, Voraporn

doi:10.1007/978-981-15-2213-0_26

Cited by 2 publications

(1 citation statement)

References 33 publications

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“…PocDoc, a digital Amsler grid, aligns with the emerging trend of utilizing digital platforms for AMD monitoring. Several digital Amsler grid applications are currently available commercially, such as the Foresee Home monitor [ 16 ], Alley (developed by Oculocare), and myVisionTrack (by Vital Art and Science) [ 17 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of a Digital Amsler Grid (PocDoc) for Macular Disease Screening: A Comparative Analysis with the Conventional Method

Boon,

Rojas-Carabali,

Asad

et al. 2024

Ophthalmol Ther

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Introduction Macular diseases are major contributors to visual impairment and blindness worldwide. This study introduces PocDoc, a digital version of the conventional Amsler grid, aimed at enhancing the screening and monitoring of macular diseases. We conducted a comprehensive evaluation to compare the effectiveness of PocDoc against the conventional method. Methods Our comparative analysis involved two distinct phases. Initially, we assessed the capability of both PocDoc and the conventional method in detecting central visual field abnormalities. This phase included a cohort of 72 healthy and 155 eyes affected by various conditions such as age-related macular degeneration (AMD), uveitis, polypoidal choroidal vasculopathy (PCV), and macular telangiectasia. We primarily focused on the area of compromise and observed the correlation between the results obtained from both methods, measuring their concordance using a correlation coefficient. In the second phase, we evaluated the accuracy of both methods in diagnosing AMD. This involved a group of 127 eyes, including 70 healthy and 57 AMD-affected eyes. We determined the sensitivity, specificity, and overall accuracy of each method in diagnosing AMD. Results In the initial phase, both PocDoc and the conventional Amsler grid demonstrated a high correlation in detecting central visual field defects across various macular diseases (correlation coefficient > 0.9). In the second phase, focused on AMD diagnosis, PocDoc showed a sensitivity of 50%, specificity of 100%, and an overall accuracy of 78%. Comparatively, the conventional method exhibited a sensitivity of 49%, specificity of 100%, and accuracy of 77%. Conclusion PocDoc’s digital Amsler grid exhibits comparable effectiveness to the conventional method in both detecting visual field abnormalities across a range of macular diseases and specifically in the diagnosis of AMD. The high correlation in results, combined with the digital advantages of PocDoc, such as ease of use and potential for telemedicine applications, suggests its viability as a valuable tool in the screening and monitoring of macular diseases. Supplementary Information The online version contains supplementary material available at 10.1007/s40123-024-00910-5.

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Section: Discussionmentioning

confidence: 99%

Evaluation of a Digital Amsler Grid (PocDoc) for Macular Disease Screening: A Comparative Analysis with the Conventional Method

Boon,

Rojas-Carabali,

Asad

et al. 2024

Ophthalmol Ther

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A novel tool for quantitative measurement of distortion in keratoconus

Joshi

Voison

Piano

et al. 2022

Eye

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Background Keratoconus is associated with thinning and anterior protrusion of the cornea resulting in the symptoms of blurry and distorted vision. The commonly used clinical vision tests such as visual acuity and contrast sensitivity may not reflect the symptoms experienced in keratoconus and there are no quantitative tools to measure visual distortion. In this study, we used a quantitative test based on vernier alignment and field matching techniques to quantify visual distortion in keratoconus and assess its relation to corneal structural changes. Methods A total of 50 participants (25 keratoconus and 25 visually normal) completed the experiment where they aligned supra-threshold white target circles in opposite field in reference to guidelines and circles to complete a square structure monocularly. The task was repeated five times and the global distortion index (GDI) and global uncertainty index (GUI) were calculated as the mean and standard deviation respectively of local perceived misalignment of target circles over five trials. Results Both GDI and GUI were higher in participants with keratoconus compared to controls ( p < 0.01). Both parameters correlated with the best corrected visual acuity, maximum corneal curvature (K max ), topographical keratoconus classification (TKC) and central corneal thickness (CCT). Conclusion Our findings show that the quantitative measure of distortion could be a useful tool for behavioural assessment of progressive keratoconus.

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Home Monitoring for Age-Related Macular Degeneration

Cited by 2 publications

References 33 publications

Evaluation of a Digital Amsler Grid (PocDoc) for Macular Disease Screening: A Comparative Analysis with the Conventional Method

Evaluation of a Digital Amsler Grid (PocDoc) for Macular Disease Screening: A Comparative Analysis with the Conventional Method

A novel tool for quantitative measurement of distortion in keratoconus

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