Smartphone-Acquired Image Photogrammetry for Detection of Shallow Anterior Chamber
| العنوان: | Smartphone-Acquired Image Photogrammetry for Detection of Shallow Anterior Chamber |
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| المؤلفون: | Yogish Subraya Kamath, Ravi Chandna, Neetha I R Kuzhuppilly |
| المصدر: | Clinical Ophthalmology (Auckland, N.Z.) |
| بيانات النشر: | Dove, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | medicine.medical_specialty, flashlight test, Pupil, 03 medical and health sciences, 0302 clinical medicine, Optical biometry, Cornea, Ophthalmology, community screening, medicine, Iris (anatomy), Shallow AC, Original Research, business.industry, shallow anterior chamber, Clinical Ophthalmology, eye diseases, medicine.anatomical_structure, Photogrammetry, angle-closure glaucoma, 030221 ophthalmology & optometry, University teaching, telemedicine, business, 030217 neurology & neurosurgery, Shallow anterior chamber, smartphone teleophthalmology |
| الوصف: | Ravi Chandna, Neetha IR Kuzhuppilly, Yogish S Kamath Department of Ophthalmology, Kasturba Medical College-Manipal, Manipal Academy of Higher Education, Manipal, 576104, IndiaCorrespondence: Yogish S Kamath Email yogish.kamath@manipal.eduPurpose: This study aimed to explore the role of smartphone imaging of the eye using two perspectives — anterior and temporal — in the detection of a shallow anterior chamber (AC). The AC depth (ACD) of an eye can be used as a surrogate marker for identification of eyes at risk of developing angle-closure disease.Methods: A prospective observational study was conducted at a university teaching hospital in South India. Each eye was photographed with a smartphone using the two perspectives, followed by quantitative measurement of ACD using optical biometry. The percentage of nasal iris illuminated was measured from the image acquired using the flashlight method (anterior perspective), whereas pupil position relative to the cornea was measured from the image acquired using the temporal perpendicular method (temporal perspective). The receiver-operating characteristic curve and area under the curve (AUC) were studied for both perspectives independently for overall predictive accuracy in detection of shallow AC (ACD < 2.7 mm, obtained by IOL Master).Results: A total of 275 eyes were examined, of which 77 (28%) had an ACD < 2.7 mm. The accuracy of detection of shallow AC was found to be 95.2% for both perspectives when used alone or in combination. AUC of the anterior perspective was 0.99 (95% CI 0.982– 0.997). The AUC for the temporal perspective was 0.993 (95% CI 0.988– 0.999).Conclusion: Smartphone-acquired image photogrammetry of an eye with anterior and temporal perspectives independently and in combination provided accuracy nearing 95% in the detection of shallow AC (ACD < 2.7 mm).Registration: This trial was registered with the Clinical Trial Registry of India (CTRI/2018/09/015867, September 28, 2018).Keywords: flashlight test, angle-closure glaucoma, shallow anterior chamber, community screening, smartphone teleophthalmology, telemedicine |
| وصف الملف: | text/html |
| اللغة: | English |
| تدمد: | 1177-5483 1177-5467 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::819c438c83d87797fd99b0d2e3c17b6b http://europepmc.org/articles/PMC8110252 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....819c438c83d87797fd99b0d2e3c17b6b |
| قاعدة البيانات: | OpenAIRE |
PDF full text from Publisher | تدمد: | 11775483 11775467 |
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