Educational draft · awaiting clinical reviewUse Rapid for revision, not patient-care decisions. Check current national and local guidance and the BNF or BNFC before acting.
2 min synopsisUK scopeSources checked 7 Sept 2026Clinical review pending
!
Exclude a structural cause of poor vision
A white or abnormal red reflex, a cloudy or enlarged cornea, a pupil-obscuring opacity or new neurological signs requires urgent assessment rather than an assumption of uncomplicated amblyopia.
Action: Arrange the appropriate urgent ophthalmic pathway, with immediate assessment for leukocoria or acute visual or neurological change; correction of visual deprivation cannot wait for routine school screening.
Synopsis
Explain developmental visual loss, identify treatable causes and support a monitored treatment plan without treating age seven as an absolute boundary to benefit.
Amblyopia reflects abnormal visual development during early life.
Strabismus and unequal refractive error are common causes.
Reduced vision can affect both eyes with significant bilateral blur.
Key red flags
White, absent or substantially asymmetric red reflex.
Investigation priorities
01
Monocular age-appropriate acuityFirst step
Quantify visual function in each eye using a reproducible method.
Management branches
New diagnosisEstablish a clear image and baseline
A child has reduced vision consistent with developmental amblyopia.
Confirm monocular measurements and investigate the underlying refractive, alignment or deprivation mechanism.
Prescribe appropriate optical correction and explain the intended wearing schedule.
Key medicines
Atropine 1% eye drops for amblyopia penalisationThis is a specialist paediatric regimen: one drop in the better-seeing eye twice weekly, on the prescribed days, with duration and adjustments determined at review.
National guidance is shown before implementation-dependent detail. Typical adult dose examples remain subject to patient factors, contraindications and the live BNF or specialist protocol. Source check completed 7 Sept 2026; clinical approval remains outstanding.
NHS lazy eye informationCurrent UK explanation of causes, examination and treatment, with emphasis on early care.
NEI trial findings in older childrenResearch funder's report of the randomised trial in children aged seven to seventeen; supports nuanced age counselling.