Pilot Study on the Diagnostic Performance of a Portable Non-Mydriatic Retinal Camera for the Diabetic Retinopathy Diagnosis in Type 2 Diabetic Patients in Medellín, Antioquia
Introduction: Portable retinal cameras represent a potentially valuable tool in teleophthalmology to facilitate the diagnosis of diabetic retinopathy. Objective: To evaluate the diagnostic sensitivity and specificity of a portable non-mydriatic retinal camera in diagnosing diabetic retinopathy comp...
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| Format: | Article |
| Language: | Spanish |
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Universidad de Antioquia
2025-07-01
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| Series: | Iatreia |
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| Online Access: | https://revistas.udea.edu.co/index.php/iatreia/article/view/352301 |
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| author | Martínez Rua, Alexander Llano Naranjo, Yenny Gaviria Jimenez, Juan José Llano Naranjo, Yuliana Sucerquia Giraldo, Juan Alejandro Patiño Giraldo, Santiago |
| author_facet | Martínez Rua, Alexander Llano Naranjo, Yenny Gaviria Jimenez, Juan José Llano Naranjo, Yuliana Sucerquia Giraldo, Juan Alejandro Patiño Giraldo, Santiago |
| author_sort | Martínez Rua, Alexander |
| collection | DOAJ |
| description | Introduction: Portable retinal cameras represent a potentially valuable tool in teleophthalmology to facilitate the diagnosis of diabetic retinopathy.
Objective: To evaluate the diagnostic sensitivity and specificity of a portable non-mydriatic retinal camera in diagnosing diabetic retinopathy compared to fundoscopic examination by an ophthalmologist.
Methodology: A cross-sectional study was conducted in a population over 18 years of age diagnosed with type 2 diabetes mellitus. Fundus images were obtained using the NIDEK Versacam® camera and compared with fundoscopic examination performed by an ophthalmologist. Sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios (LR) were calculated with their respective 95% confidence intervals based on interpretations by three different evaluators according to the American Academy of Ophthalmology classification.
Results: Between October and November 2018, 91 images from 81 patients were obtained. Image quality was graded according to clarity classification by three independent evaluators. The analysis yielded a sensitivity of 30% and specificity of 80%. Images were classified as excellent in 10.4% of cases (8-13/91), good in 10.5% (8-12/91), acceptable in 20% (17-19/91), and inadequate in 58% (49-56/91).
Conclusions: Screening for diabetic retinopathy using a portable non-mydriatic retinal camera in type 2 diabetes mellitus patients yields a high number of inadequate photographs and demonstrates sensitivity below recommended standards. |
| format | Article |
| id | doaj-art-a76aac9617654491a6b3a71ca60fd22b |
| institution | DOAJ |
| issn | 0121-0793 2011-7965 |
| language | Spanish |
| publishDate | 2025-07-01 |
| publisher | Universidad de Antioquia |
| record_format | Article |
| series | Iatreia |
| spelling | doaj-art-a76aac9617654491a6b3a71ca60fd22b2025-08-20T02:47:18ZspaUniversidad de AntioquiaIatreia0121-07932011-79652025-07-0138344845810.17533/udea.iatreia.311Pilot Study on the Diagnostic Performance of a Portable Non-Mydriatic Retinal Camera for the Diabetic Retinopathy Diagnosis in Type 2 Diabetic Patients in Medellín, AntioquiaMartínez Rua, Alexander0https://orcid.org/0000-0002-0854-979XLlano Naranjo, Yenny1https://orcid.org/0009-0003-9991-5226Gaviria Jimenez, Juan José2https://orcid.org/0000-0002-8545-3388Llano Naranjo, Yuliana3https://orcid.org/0000-0002-2125-8620Sucerquia Giraldo, Juan Alejandro4https://orcid.org/0000-0002-2034-3129Patiño Giraldo, Santiago5https://orcid.org/0000-0003-0895-6456Clínica CLOFAN, Medellín, ColombiaClínica Oftalmológica Santa Lucía, Medellín, ColombiaUniversidad de Antioquia, Medellín, ColombiaClínica Oftalmológica Santa Lucía, Medellín, ColombiaClínica CLOFAN, Medellín, ColombiaUniversidad de Antioquia, Medellín, ColombiaIntroduction: Portable retinal cameras represent a potentially valuable tool in teleophthalmology to facilitate the diagnosis of diabetic retinopathy. Objective: To evaluate the diagnostic sensitivity and specificity of a portable non-mydriatic retinal camera in diagnosing diabetic retinopathy compared to fundoscopic examination by an ophthalmologist. Methodology: A cross-sectional study was conducted in a population over 18 years of age diagnosed with type 2 diabetes mellitus. Fundus images were obtained using the NIDEK Versacam® camera and compared with fundoscopic examination performed by an ophthalmologist. Sensitivity, specificity, positive and negative predictive values, and positive and negative likelihood ratios (LR) were calculated with their respective 95% confidence intervals based on interpretations by three different evaluators according to the American Academy of Ophthalmology classification. Results: Between October and November 2018, 91 images from 81 patients were obtained. Image quality was graded according to clarity classification by three independent evaluators. The analysis yielded a sensitivity of 30% and specificity of 80%. Images were classified as excellent in 10.4% of cases (8-13/91), good in 10.5% (8-12/91), acceptable in 20% (17-19/91), and inadequate in 58% (49-56/91). Conclusions: Screening for diabetic retinopathy using a portable non-mydriatic retinal camera in type 2 diabetes mellitus patients yields a high number of inadequate photographs and demonstrates sensitivity below recommended standards.https://revistas.udea.edu.co/index.php/iatreia/article/view/352301diabetic retinopathyophthalmologyphotographtelemedicine |
| spellingShingle | Martínez Rua, Alexander Llano Naranjo, Yenny Gaviria Jimenez, Juan José Llano Naranjo, Yuliana Sucerquia Giraldo, Juan Alejandro Patiño Giraldo, Santiago Pilot Study on the Diagnostic Performance of a Portable Non-Mydriatic Retinal Camera for the Diabetic Retinopathy Diagnosis in Type 2 Diabetic Patients in Medellín, Antioquia Iatreia diabetic retinopathy ophthalmology photograph telemedicine |
| title | Pilot Study on the Diagnostic Performance of a Portable Non-Mydriatic Retinal Camera for the Diabetic Retinopathy Diagnosis in Type 2 Diabetic Patients in Medellín, Antioquia |
| title_full | Pilot Study on the Diagnostic Performance of a Portable Non-Mydriatic Retinal Camera for the Diabetic Retinopathy Diagnosis in Type 2 Diabetic Patients in Medellín, Antioquia |
| title_fullStr | Pilot Study on the Diagnostic Performance of a Portable Non-Mydriatic Retinal Camera for the Diabetic Retinopathy Diagnosis in Type 2 Diabetic Patients in Medellín, Antioquia |
| title_full_unstemmed | Pilot Study on the Diagnostic Performance of a Portable Non-Mydriatic Retinal Camera for the Diabetic Retinopathy Diagnosis in Type 2 Diabetic Patients in Medellín, Antioquia |
| title_short | Pilot Study on the Diagnostic Performance of a Portable Non-Mydriatic Retinal Camera for the Diabetic Retinopathy Diagnosis in Type 2 Diabetic Patients in Medellín, Antioquia |
| title_sort | pilot study on the diagnostic performance of a portable non mydriatic retinal camera for the diabetic retinopathy diagnosis in type 2 diabetic patients in medellin antioquia |
| topic | diabetic retinopathy ophthalmology photograph telemedicine |
| url | https://revistas.udea.edu.co/index.php/iatreia/article/view/352301 |
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