International Journal of Medical Ophthalmology
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Vol. 6 Issue 2 Part A

2024, Vol. 6 Issue 2, Part A
Comparative study of distance vision testing between standard Snellen chart versus wall mounted Snellen iPad device
Author(s): Dr. Aiad Al-Essa
Abstract:
The study aimed to compare the distance visual acuity assessments obtained using a Snellen Chart displayed on an iPad tablet with those obtained using the traditional light-box Snellen Chart. The Snellen iPad app and Eye Chart HD iOS app were utilized to assess visual acuity in 300 new patients aged 8 years and older at the Ophthalmology Outpatient Department. The study excluded patients with visual acuity less than 6/30. Visual acuity was measured using both the iPad Mini 2 with the Eye Chart HD app and the classic Snellen Light-Box Chart. The results showed that the Snellen iPad app and the classic light-box Snellen Chart produced comparable findings, suggesting that the iPad app can be a viable alternative for visual acuity assessment. The study also identified potential confounders, such as prior memorization of the traditional Snellen Chart and variations in device brightness. Future research should consider controlling for these factors and explore the use of premium apps, compare both devices under varied conditions, and utilize a larger sample size to further validate the use of tablet computers for visual acuity testing in clinical settings.
Pages: 40-42  |  205 Views  76 Downloads
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International Journal of Medical Ophthalmology
How to cite this article:
Dr. Aiad Al-Essa. Comparative study of distance vision testing between standard Snellen chart versus wall mounted Snellen iPad device. Int J Med Ophthalmol 2024;6(2):40-42. DOI: 10.33545/26638266.2024.v6.i2a.202
 
International Journal of Medical Ophthalmology
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