Validity of Hand Held Fundus Camera by Optometrist using Slit lamp 90D bio microscopy as a reference standard for screening of Diabetes Retinopathy | [Journal of Pakistan Medical Association • 2022]

Author(s):

1. Shahid Ahsan: Department of Biochemistry, Jinnah Medical & Dental College,Karachi,Pakistan

2. Uzma Haseeb: Department of Ophthalmology, Al-Ibrahim Eye Hospital, Isra Postgraduate Institute of Ophthalmology, Karachi, Pakistan

3. Muhammad Saleh Memon: Research Department, Al-Ibrahim Eye Hospital, Isra Postgraduate Institute of Ophthalmology, Karachi, Pakistan

4. Sadia Bukhari: Department of Ophthalmology, Al-Ibrahim Eye Hospital, Isra Postgraduate Institute of Ophthalmology, Karachi, Pakistan

5. Tauseef Mahmood: Research Department, Al-Ibrahim Eye Hospital, Isra Postgraduate Institute of Ophthalmology, Karachi, Pakistan

6. Muhammad Faisal Fahim: Department of Bahria University Current Procedural Terminology, Bahria University Medical & Dental College, Karachi, Pakistan

Abstract:

Objective: To fi nd out the validity of hand-held fundus camera by optometrist using slit lamp 90D biomicroscopy as reference standard for screening of diabetes retinopathy. Method: The observational cross-sectional study was conducted at the diabetic clinic of Al-Ibrahim Eye Hospital, Karachi, from August 2020 to May 2021, and comprised diabetics of either gender aged >16 years visiting the outpatient department. Un-dilated fundus photograph of both eyes were taken with non-mydriatic fundus camera. Pupils were then mid-dilated with one drop of tropicamide 1% before capturing retinal images by handheld fundus camera by another optometrist. Both the optometrists identifi ed and recorded the presence and absence of diabetic retinopathy. Subsequently, a retinal specialist examined the fundus with slit lamp 90 D biomicroscopy. Data was analysed using SPSS 23. Results: Of the 500 subjects, 291(58.2%) were males and 209(41.8%) were females. The overall mean age was 54.49±9.16 years (range: 16-83 years). Of the 1000 eyes, fundus was not readable in 130(13%) by hand-held fundus camera, 296(29.6%) eyes by non-mydriatic fundus camera and 76(7.6%) eyes by slit lamp. Sensitivity and specifi city of hand-held fundus camera compared to non-mydriatic fundus camera was 89.86% and 80.36%, respectively. In comparison with slit lamp, the sensitivity was 91.71% and specifi city was 71.10%. Kappa statistic for diabetic retinopathy detection by hand-held fundus camera versus non-mydriatic fundus camera was 0.705, indicating substantial agreement. Kappa statistic for diabetic retinopathy detection with hand-held fundus camera versus slit lamp (standard) was 0.609, indicating good agreement. Conclusion: Handheld fundus camera with semi-dilated pupil was found to be a valid screening tool in the hand of optometrist for preliminary screening of diabetic retinopathy.

Page(s): 2189-2192

DOI: 10.47391/JPMA.4235

Published: Journal: Journal of Pakistan Medical Association, Volume: 72, Issue: 11, Year: 2022

Keywords:

sensitivity , Specificity , Handheld fundus camera , Retinal screening , Optometrist

References:

References are not available for this document.

Citations

Citations are not available for this document.

Citations

Downloads

Views