1. Assessment of the Density of Suppression to Identify Risk of Intractable Diplopia in the United Kingdom
- Author
-
Anna R. O'Connor and David Newsham
- Subjects
Adult ,Male ,medicine.medical_specialty ,Adolescent ,Light ,genetic structures ,Audiology ,Amblyopia ,Risk Assessment ,03 medical and health sciences ,0302 clinical medicine ,Surveys and Questionnaires ,Diplopia ,Humans ,Medicine ,Child ,Research evidence ,business.industry ,Incidence ,Incidence (epidemiology) ,Age Factors ,Bandages ,United Kingdom ,eye diseases ,Clinical Practice ,Ophthalmology ,Current practice ,Child, Preschool ,030221 ophthalmology & optometry ,Optometry ,Female ,Sensory Deprivation ,medicine.symptom ,business ,030217 neurology & neurosurgery ,Orthoptics - Abstract
Occlusion used to treat amblyopia towards the end of the developmental component of the critical period gives a risk of inducing intractable diplopia. In the United Kingdom, the density of suppression is assessed via the Sbisa/Bagolini filter bar, but there is very little research evidence to guide clinical practice or interpretation of the tests used. The aims of this study were to determine current practice and estimate the incidence of intractable diplopia following amblyopia treatment.Current practice and incidence of intractable diplopia following amblyopia were determined via a questionnaire distributed to head orthoptists in every eye department in the United Kingdom. The questionnaire explored testing and test conditions, interpretation of the test results, and cases of intractable diplopia over the last 5 years.There was considerable variation in clinical practice of the measurement of the density of suppression and interpretation of the results to guide the treatment of amblyopia. The minimum age of patients taking the test ranged from 2 to 8 years and the minimum filter considered still safe to continue treatment ranged from 4 to 17. It is estimated there were 24 cases of intractable diplopia over the last 5 years.The issue of intractable diplopia and amblyopia treatment is likely to become increasingly important as there appears to be greater plasticity and scope to treat amblyopia in teenagers and adults than was previously thought. Lack of knowledge of how to evaluate the risk may lead to more cases of intractable diplopia or alternatively treatment being withheld unnecessarily.
- Published
- 2016