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  • Portable fundus...

Portable fundus photography more accurate than smartphone fundoscopy for neurological examination: Study

Medha BaranwalWritten by Medha Baranwal Published On 2022-07-04T09:00:57+05:30  |  Updated On 2022-07-04T14:21:22+05:30
Portable fundus photography more accurate than smartphone fundoscopy for neurological examination: Study

Australia: Portable non-mydriatic fundus photography (NMFP) screening seems more accurate than smartphone fundoscopy (SF). Both are feasible and well tolerated by patients and are diagnostically superior to routine fundoscopic practice. These are results from a recent study published in the European Journal of Neurology. The researchers wrote in their study, "our study demonstrates a...

Australia: Portable non-mydriatic fundus photography (NMFP) screening seems more accurate than smartphone fundoscopy (SF). Both are feasible and well tolerated by patients and are diagnostically superior to routine fundoscopic practice. These are results from a recent study published in the European Journal of Neurology. 

The researchers wrote in their study, "our study demonstrates a high prevalence of fundus pathology in neurology inpatients which was missed by the present fundoscopy practices." 

Fundoscopy although a critical part of the neurological examination, is under-utilized, challenging, and unreliable performed. Hamish P. Dunn, University of Sydney, Faculty of Medicine and Health, Sydney, NSW, Australia, and colleagues, therefore, aimed to determine the prevalence of fundus pathology in neurology inpatients in prospective cross-sectional surveillance and diagnostic accuracy study. They also compared the diagnostic accuracy of current fundoscopy practice with systematic screening with smartphone fundoscopy and portable non-mydriatic fundus photography. 

The study included adult patients admitted under neurology in an Australian hospital. Inpatients were randomized to initial NMFP (RetinaVue 100, Welch Allyn) or SF (D-EYE) followed by a crossover to the alternative modality. 

Grading of images was done by neurology doctors, using telemedicine consensus neuro-ophthalmology NMFP grading as the reference standard. Feasibility parameters included comfort, ease, and speed. 

Based on the study, the researchers found the following:

  • Of 79 enrolled patients, 14.1% had neurologically relevant pathology (seven, disc pallor; one, hypertensive retinopathy; three, disc swelling).
  • The neurology team performed direct ophthalmoscopy in 6.6% of cases and missed all abnormalities.
  • SF had a sensitivity of 30%–40% compared with NMFP (45.5%); however, it had a lower rate of screening failure (1% vs. 13%), a shorter examination time (1.10 vs. 2.25 min), and a slightly higher patient comfort rating (9.2 vs. 8/10).

"Our study found a high prevalence of fundus pathology amongst neurology inpatients. This pathology was missed by standard direct ophthalmoscope (DO) techniques," the researchers wrote.

"Portable NMFP screening appears more accurate than SF, both are, however, diagnostically superior to routine fundoscopic practice, well tolerated by patients, and can feasibly be incorporated into routine neurology inpatient care," they concluded. 

Reference:

He G, Dunn HP, Ahmad KE, Watson E, Henderson A, Tynan D, Leaney J, White AJ, Hewitt AW, Fraser CL. Fundoscopy use in neurology departments and the utility of smartphone photography: a prospective prevalence and crossover diagnostic accuracy study amongst neurology inpatients. Eur J Neurol. 2022 May 9. doi: 10.1111/ene.15390. Epub ahead of print. PMID: 35531644.

 direct ophthalmoscopy (DO) 

European Journal of Neurology Fundoscopy neurology 
Source : European Journal of Neurology
Medha Baranwal
Medha Baranwal

    Medha, MSc. Biotechnology

    Medha Baranwal joined Medical Dialogues as an Editor in 2018 for Speciality Medical Dialogues. She covers several medical specialties including Cardiac Sciences, Dentistry, Diabetes and Endo, Diagnostics, ENT, Gastroenterology, Neurosciences, and Radiology. She has completed her Bachelors in Biomedical Sciences from DU and then pursued Masters in Biotechnology from Amity University. She has a working experience of 5 years in the field of medical research writing, scientific writing, content writing, and content management. She can be contacted at  editorial@medicaldialogues.in. Contact no. 011-43720751

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