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Open AccessArticle

Evaluation of Nuclear Cataract with Smartphone-Attachable Slit-Lamp Device

1
Department of Ophthalmology, Tsurumi University School of Dental Medicine, Kanagawa 230-0063, Japan
2
Department of Ophthalmology, Keio University School of Medicine, Tokyo 160-0016, Japan
3
OUI Inc., Tokyo 160-0022, Japan
4
Department of Preventive Medicine and Public Health, Biostatistics at Clinical and Translational Research Center, Keio University School of Medicine, Tokyo 160-0016, Japan
*
Author to whom correspondence should be addressed.
Diagnostics 2020, 10(8), 576; https://doi.org/10.3390/diagnostics10080576
Received: 9 July 2020 / Revised: 5 August 2020 / Accepted: 7 August 2020 / Published: 9 August 2020
(This article belongs to the Section Point-of-Care Diagnostics and Devices)
Background: Visual impairments and age-related eye diseases need to be detected and treated in a timely manner. However, this is often hampered by lack of appropriate medical equipment. We have invented a portable, recordable, and smartphone-attachable slit-lamp device, called the Smart Eye Camera (SEC). The aim of this study was to compare evaluating nuclear cataract (NUC) between the SEC and the conventional, non-portable slit-lamp microscope. Methods: A total of 128 eyes of 64 Japanese patients (mean age: 73.95 ± 9.28 years; range: 51‒92 years; female: 34) were enrolled. The NUC was classified into four grades (grade 0 to 3) based on three standard photographs of nuclear opacities according to the WHO classification by ophthalmologists. An ophthalmic healthcare assistant (non-ophthalmologist) filmed the eyes in video mode by the SEC and an ophthalmologist graded the NUC. Grade correlation and inter-rater reproducibility were determined. Results: NUC grading by the two approaches correlated significantly (both eyes: r = 0.871 [95%CI: 0.821 to 0.907; p < 0.001]). Inter-rater agreement was high (weighted κ = 0.807 [95%CI: 0.798 to 0.816; p < 0.001]). Conclusions: This study suggests that the SEC is as reliable as the conventional non-portable slit-lamp microscope for evaluating NUC. View Full-Text
Keywords: cataract; portable; recordable; conventional slit-lamp microscope; smart eye camera cataract; portable; recordable; conventional slit-lamp microscope; smart eye camera
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Yazu, H.; Shimizu, E.; Okuyama, S.; Katahira, T.; Aketa, N.; Yokoiwa, R.; Sato, Y.; Ogawa, Y.; Fujishima, H. Evaluation of Nuclear Cataract with Smartphone-Attachable Slit-Lamp Device. Diagnostics 2020, 10, 576.

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