Vision Screening Assessment (VISA) tool: diagnostic accuracy validation of a novel screening tool in detecting visual impairment among stroke survivors.

BMJ Open
Fiona J RoweGirvan Burnside

Abstract

Screening for visual problems in stroke survivors is not standardised. Visual problems that remain undetected or poorly identified can create unmet needs for stroke survivors. We report the validation of a new Vision Impairment Screening Assessment (VISA) tool intended for use by the stroke team to improve identification of visual impairment in stroke survivors. We conducted a prospective case cohort comparative study in four centres to validate the VISA tool against a specialist reference vision assessment. VISA is available in print or as an app (Medicines and Healthcare products Regulatory Agency regulatory approved); these were used equally for two groups. Both VISA and the comprehensive reference vision assessment measured case history, visual acuity, eye alignment, eye movements, visual field and visual inattention. The primary outcome measure was the presence or absence of visual impairment. Two hundred and twenty-one stroke survivors were screened. Specialist reference vision assessment was by experienced orthoptists. Full completion of screening and reference vision assessment was achieved for 201 stroke survivors. VISA print was completed for 101 stroke survivors; VISA app was completed for 100. Sensitivity and specif...Continue Reading

Citations

Apr 5, 2021·Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association·Lauren R HepworthFiona J Rowe
May 30, 2020·Disability and Rehabilitation·Fiona J RoweBrinton Helliwell

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Software Mentioned

VISA app
Vision Impairment Screening Assessment ( VISA )
StatsDirect
VISA
StrokeVision

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