Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head

Titoneli, Carolina C.; Filho, Marcio S.; Lencione, Diego; Vieira, Flávio Pascoal; Stuchi, José Augusto; Paula, Jayter Silva

doi:10.5935/0004-2749.20210080

Cited by 3 publications

(3 citation statements)

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“… 43 These findings are similar to another validation study done in Brazil to evaluate smartphone-based devices in measuring cup-to-disc ratio, which also shows excellent agreement. 44 …”

Section: Discussionmentioning

confidence: 99%

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Accuracy of Low-Cost, Smartphone-Based Retinal Photography for Diabetic Retinopathy Screening: A Systematic Review

Prayogo,

Zaharo,

Damayanti

et al. 2023

OPTH

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Diabetic retinopathy (DR) is a leading cause of blindness. Early DR screening is essential, but the infrastructure can be less affordable in low resource countries. This study aims to review the accuracy of low-cost smartphone-based fundus cameras for DR screening in adult patients with diabetes. Methods: We performed a systematic literature search to find studies that reported the sensitivity and specificity of low-cost smartphone-based devices for fundus photography in adult patients with diabetes. We searched three databases (MEDLINE, Google Scholar, Scopus) and one register (Cochrane CENTRAL). We presented the accuracy values by grouping the diagnosis into three: any DR, referrable DR, and diabetic macular oedema (DMO). Risk of bias and applicability of the studies were assessed using QUADAS-2. Results: Five out of 294 retrieved records were included with a total of six smartphone-based devices reviewed. All of the reference diagnostic methods used in the included studies were either indirect ophthalmoscopy or slit-lamp examinations and all smartphonebased devices' imaging protocols used mydriatic drops. The reported sensitivity and specificity for any DR were 52-92.2% and 73.3-99%; for referral DR were 21-91.4% and 64.9-100%; and for DMO were 29.4-81% and 95-100%, respectively. Conclusion: Sensitivity available low-cost smartphone-based devices for DR screening were acceptable and their specificity particularly for detecting referrable DR and DMO were considerably good. These findings support their potential utilization for DR screening in a low resources setting.

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“… 43 These findings are similar to another validation study done in Brazil to evaluate smartphone-based devices in measuring cup-to-disc ratio, which also shows excellent agreement. 44 …”

Section: Discussionmentioning

confidence: 99%

“…43 These findings are similar to another validation study done in Brazil to evaluate smartphone-based devices in measuring cup-to-disc ratio, which also shows excellent agreement. 44 The strength of our study is the use of a detailed search strategy pre-defined in our study protocol. However, limitations are noted.…”

mentioning

confidence: 99%

Accuracy of Low-Cost, Smartphone-Based Retinal Photography for Diabetic Retinopathy Screening: A Systematic Review

Prayogo,

Zaharo,

Damayanti

et al. 2023

OPTH

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“…A oftalmologia tem utilizado a telemedicina em países desenvolvidos há muitos anos como estratégia para rastreamento e monitoramento de doenças oculares 14 . Apesar de, muitas vezes, o uso da telemedicina assíncrona ser a metodologia aplicada nessas estratégias 15 , com o avanço do uso das tecnologias, os serviços de telemedicina oftalmológica síncrona receberam destaque na literatura científica, devido aos excelentes resultados relacionados à possibilidade de aumento de oferta de consultas e à satisfação dos pacientes 16,17,18 . No Brasil, os resultados do uso da telemedicina síncrona são incipientes, no entanto demonstram potencial em resolver as demandas reprimidas nessa especialidade, resolutividade nos problemas que não precisam de atendimento presencial, além da otimização na utilização de recursos públicos 11,19 .…”

Section: Discussionunclassified

TeleOftalmo: estratégia de ampliação da oferta de telediagnósticos oftalmológicos para a atenção primária à saúde no Sul do Brasil

et al. 2022

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O uso da teleoftalmologia pode ser uma estratégia viável para rastrear e diagnosticar as principais doenças oculares em pacientes na atenção primária à saúde. O objetivo deste estudo é descrever a realização de 30.315 telediagnósticos em oftalmologia em pacientes da atenção primária e a resolutividade desse serviço. Estudo transversal para avaliar os telediagnósticos realizados em pacientes atendidos nos oito pontos remotos do projeto TeleOftalmo entre 2 de janeiro de 2018 a 31 de dezembro de 2020. Foram avaliadas as características demográficas dos pacientes, os motivos de encaminhamento, os diagnósticos realizados conforme faixa etária e a resolutividade do telediagnóstico. Os pacientes eram, na maioria, do sexo feminino (66,1%), adultos (70,3%) e encaminhados ao telediagnóstico principalmente devido à baixa acuidade visual (60,5%). Os erros refrativos foram o diagnóstico mais prevalente em todas as faixas etárias. A presbiopia foi a doença ocular mais prevalente em adultos (65,4%) e idosos (64%), seguida da catarata (41,3%) e suspeita de glaucoma (10,6%) em idosos. Dos 30.315 pacientes que realizaram o telediagnóstico, 70,5% tiveram suas queixas oculares totalmente solucionadas, sem a necessidade de encaminhamento ao oftalmologista presencial. A telemedicina pode ser resolutiva para as doenças oculares mais prevalentes na população, aumentando a oferta de diagnósticos, qualificando e auxiliando na redução das filas de espera por atendimento oftalmológico.

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Comparison of Three Handheld Fundus Cameras for Assessment of the Vertical Cup-To-Disk Ratio

Saroya,

Lu,

Ausayakhun

et al. 2023

Ophthalmic Epidemiology

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Clinical validation of a smartphone-based handheld fundus camera for the evaluation of optic nerve head

Cited by 3 publications

References 0 publications

Accuracy of Low-Cost, Smartphone-Based Retinal Photography for Diabetic Retinopathy Screening: A Systematic Review

Accuracy of Low-Cost, Smartphone-Based Retinal Photography for Diabetic Retinopathy Screening: A Systematic Review

TeleOftalmo: estratégia de ampliação da oferta de telediagnósticos oftalmológicos para a atenção primária à saúde no Sul do Brasil

Comparison of Three Handheld Fundus Cameras for Assessment of the Vertical Cup-To-Disk Ratio

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