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Naz H, Nijhawan R, Ahuja NJ. Clinical utility of handheld fundus and smartphone-based camera for monitoring diabetic retinal diseases: a review study. Int Ophthalmol 2024; 44:41. [PMID: 38334896 DOI: 10.1007/s10792-024-02975-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 10/29/2023] [Indexed: 02/10/2024]
Abstract
Diabetic retinopathy (DR) is the leading global cause of vision loss, accounting for 4.8% of global blindness cases as estimated by the World Health Organization (WHO). Fundus photography is crucial in ophthalmology as a diagnostic tool for capturing retinal images. However, resource and infrastructure constraints limit access to traditional tabletop fundus cameras in developing countries. Additionally, these conventional cameras are expensive, bulky, and not easily transportable. In contrast, the newer generation of handheld and smartphone-based fundus cameras offers portability, user-friendliness, and affordability. Despite their potential, there is a lack of comprehensive review studies examining the clinical utilities of these handheld (e.g. Zeiss Visuscout 100, Volk Pictor Plus, Volk Pictor Prestige, Remidio NMFOP, FC161) and smartphone-based (e.g. D-EYE, iExaminer, Peek Retina, Volk iNview, Volk Vistaview, oDocs visoScope, oDocs Nun, oDocs Nun IR) fundus cameras. This review study aims to evaluate the feasibility and practicality of these available handheld and smartphone-based cameras in medical settings, emphasizing their advantages over traditional tabletop fundus cameras. By highlighting various clinical settings and use scenarios, this review aims to fill this gap by evaluating the efficiency, feasibility, cost-effectiveness, and remote capabilities of handheld and smartphone fundus cameras, ultimately enhancing the accessibility of ophthalmic services.
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Affiliation(s)
- Huma Naz
- Department of Computer Science, University of Petroleum and Energy Studies, Dehradun, India.
| | - Rahul Nijhawan
- Thapar Institute of Engineering and Technology, Patiala, Punjab, India
| | - Neelu Jyothi Ahuja
- Department of Computer Science, University of Petroleum and Energy Studies, Dehradun, India
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Firima E, Gonzalez L, Khan MA, Manthabiseng M, Sematle MP, Bane M, Khomolishoele M, Leisa I, Retselisitsoe L, Burkard T, Seelig E, Lee T, Chammartin F, Gupta R, Leigh B, Weisser M, Amstutz A, Labhardt ND. High Rates of Undiagnosed Target Organ Damage Among Adults with Elevated Blood Pressure or Diabetes Mellitus in a Community-Based Survey in Lesotho. J Epidemiol Glob Health 2023; 13:857-869. [PMID: 37883005 PMCID: PMC10686968 DOI: 10.1007/s44197-023-00158-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/21/2023] [Indexed: 10/27/2023] Open
Abstract
INTRODUCTION Prevalence of elevated blood pressure (BP) and diabetes mellitus (DM) is increasing in sub-Saharan Africa. Data on target organ damage such as retinopathy, left ventricular hypertrophy (LVH), renal impairment and peripheral neuropathy (PN) among persons with elevated BP and/or DM in sub-Saharan Africa remain scarce. AIM To determine at community-level the prevalence of retinopathy, LVH, renal impairment, and PN among adults with elevated BP and/or DM, and assess the association of elevated BP and/or DM with target organ damage in Lesotho. METHODS During a household-based survey, a sub-sample of adults with elevated BP (≥ 140/90 mmHg) and/or DM (glycosylated hemoglobin ≥ 6.5%), as well as comparators (BP < 140/90 mmHg, HbA1c < 6.5%) were screened for retinopathy, LVH, renal impairment, and PN. We used multivariable logistic regression for inferential analysis. RESULTS Out of 6108 participants screened during the survey, 420 with elevated BP only, 80 with DM only, 61 with elevated BP and DM, and 360 comparators were assessed for target organ damage. Among those with elevated BP, and among those with DM with or without elevated BP, prevalence of retinopathy was 34.6% (89/257) and 14.4% (15/104); renal impairment was 45.0% (156/347) and 42.4% (56/132), respectively. Among those with elevated BP, 2.3% (7/300) and 65.7% (224/341) had LVH and left ventricular concentric remodeling, respectively. PN, only assessed among those with DM, was present in 32.6% (42/129). Elevated BP was associated with increased odds of retinopathy (aOR, 19.13; 95% CI, 8.52-42.94; P < 0.001) and renal impairment (aOR, 1.80; 95% CI, 1.27-2.55; P = 0.001). Presence of both elevated BP and DM was associated with an increased odds of retinopathy (aOR, 16.30; 95%CI, 5.69-46.68; P < 0.001), renal impairment (aOR, 2.55; 95% CI, 1.35-4.81; P = 0.004), and PN (aOR, 2.13; 95% CI, 1.04-4.38; P = 0.040). CONCLUSION We found a high prevalence of undiagnosed target organ damage among adults with elevated BP and/or DM during community-based screening. These findings emphasize the importance of regular prevention and screening activities in this setting.
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Affiliation(s)
- Emmanuel Firima
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland.
- University of Basel, Basel, Switzerland.
- Swiss Tropical and Public Health Institute, Basel, Switzerland.
| | - Lucia Gonzalez
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland
- University of Basel, Basel, Switzerland
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | | | | | | | | | | | | | | | - Thilo Burkard
- Department of Cardiology, University Hospital Basel, Basel, Switzerland
- Medical Outpatient Department and Hypertension Clinic, ESH Hypertension Centre of Excellence, University Hospital Basel, Basel, Switzerland
| | - Eleonara Seelig
- University of Basel, Basel, Switzerland
- Department of Clinical Research, University Hospital Basel, Basel, Switzerland
| | - Tristan Lee
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Frédérique Chammartin
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | | | - Bailah Leigh
- University of Sierra Leone, Freetown, Sierra Leone
| | - Maja Weisser
- University of Basel, Basel, Switzerland
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
- Ifakara Health Institute, Ifakara, Tanzania
| | - Alain Amstutz
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Niklaus Daniel Labhardt
- Division of Clinical Epidemiology, Department of Clinical Research, University Hospital and University of Basel, Totengässlein 3, 4053, Basel, Switzerland.
- University of Basel, Basel, Switzerland.
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Scantling-Birch Y, Naveed H, Tollemache N, Gounder P, Rajak S. Is undergraduate ophthalmology teaching in the United Kingdom still fit for purpose? Eye (Lond) 2022; 36:343-345. [PMID: 34462584 PMCID: PMC8807702 DOI: 10.1038/s41433-021-01756-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/04/2021] [Accepted: 08/18/2021] [Indexed: 02/03/2023] Open
Affiliation(s)
- Y Scantling-Birch
- Department of Medicine, Royal Sussex County Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.
| | - H Naveed
- Ophthalmology Unit, Royal Surrey County Hospital, Royal Surrey NHS Foundation Trust, Surrey, UK.,Brighton and Sussex Medical School, Falmer Campus, Brighton, UK
| | - N Tollemache
- Department of Medicine, Manchester Royal Infirmary, Manchester University NHS Foundation Trust, Manchester, UK
| | - P Gounder
- Department of Oculoplastics, Sussex Eye Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.,Ophthalmology Unit, Royal Perth Hospital, The University of Western Australia, Perth, WA, Australia
| | - S Rajak
- Brighton and Sussex Medical School, Falmer Campus, Brighton, UK.,Department of Oculoplastics, Sussex Eye Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
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Shikino K, Rosu CA, Yokokawa D, Suzuki S, Hirota Y, Nishiya K, Ikusaka M. Flexible e-learning video approach to improve fundus examination skills for medical students: a mixed-methods study. BMC MEDICAL EDUCATION 2021; 21:428. [PMID: 34389012 PMCID: PMC8364022 DOI: 10.1186/s12909-021-02857-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 07/26/2021] [Indexed: 06/07/2023]
Abstract
BACKGROUND Training for the fundus examination using traditional teaching is challenging, resulting in low generalist physicians' confidence in performing the funduscopic examination. There is growing evidence suggesting a flexible e-learning video approach's value in teaching physical examination procedures. However, whether the flexible e-learning video approach is superior to the traditional, face-to-face (F2F) lecture-based teaching for the funduscopic exam and the cognitive processes supporting its effectiveness has not yet been determined. METHODS We conducted a sequential explanatory mixed-method study to compare the flexible e-learning video approach's effectiveness versus the F2F lecture-based approach for teaching the funduscopic exam to medical students at Chiba University in Japan. Medical students were randomly assigned to either a flexible e-learning video approach group or a F2F lecture approach group. We then quantitatively measured the diagnostic accuracy of funduscopic findings before and after attending the specific classrooms. Next, we conducted student focus groups to explore the students' thinking processes in the flexible e-learning video approach vs. the F2F lecture-based teaching of fundus examination. The qualitative data were analyzed using the qualitative content analysis method. RESULTS The mean diagnostic accuracy scores in the post-test significantly increased from pre-test in the intervention group (36.6 to 63.4%, p < 0.001). Post-post comparisons across the two groups revealed a significant difference (intervention group 63.4% vs. control group 34.6%, p < 0.001). Six semi-structured focused group interviews were conducted (n = 36). In the flexible e-learning video approach group, we identified ten categories corresponding to four levels of the revised Bloom's taxonomy: remember, understand, apply, analyze. Five categories were identified in the traditional F2F lecture approach group corresponding to three revised Bloom's taxonomy levels: understand, apply, analyze. Interrater reliability was substantial (Cohen's kappa = 0.81). CONCLUSIONS Teaching medical students funduscopic examination using the flexible e-learning video approach leads to improved diagnostic accuracy of funduscopic examinations. The flexible e-learning video teaching method enabled higher cognitive activity levels than the traditional, lecture-based classroom, as assessed using the revised Bloom's taxonomy. TRIAL REGISTRATION This study was registered with the University Hospital Medical Information Network Clinical Trials Registry on 08/02/2020 (Unique trial number: UMIN 000039434 ).
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Affiliation(s)
- Kiyoshi Shikino
- Department of General Medicine, Chiba University Hospital, Chiba, Japan.
- Health Professional Development Center, Chiba University Hospital, Chiba, Japan.
| | - Claudia A Rosu
- Health Professions Education Program, MGH Institute of Health Professions, Boston, MA, USA
| | - Daiki Yokokawa
- Department of General Medicine, Chiba University Hospital, Chiba, Japan
| | - Shingo Suzuki
- Department of General Medicine, Chiba University Hospital, Chiba, Japan
- Department of Internal Medicine, Chiba Medical Center, Chiba, Japan
| | - Yusuke Hirota
- Department of General Medicine, Chiba University Hospital, Chiba, Japan
- Department of Diabetes, Endocrinology and Metabolism, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan
| | - Katsumi Nishiya
- Center for Medical Education, Kansai Medical University, Hirakata, Japan
| | - Masatomi Ikusaka
- Department of General Medicine, Chiba University Hospital, Chiba, Japan
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