Table 1 Table of inclusion and exclusion criteria for the three groups in the clinical trial
Group 1 | Group 2 | Group 3 |
|---|---|---|
Anisometropic amblyopia | Strabismic or mixed amblyopia | Post-strabismus surgery |
Inclusion criteria | ||
3.55–124 years | 3.55–124 years | 3.55–124 |
Vision in amblyopic eye between 0.3 and 1.3 logMAR with an intraocular difference of 0.2 logMAR or more | Vision in amblyopic eye between 0.3 and 1.3 logMAR with an intraocular difference of 0.2 logMAR or more | Vision in amblyopic eye between 0.3 and 1.3 logMAR with an intraocular difference of 0.2 logMAR or more |
May have a manifest squint of less than or equal to 10 prism dioptres | Manifest squint must be greater than 10 prism dioptres | Residual squint following surgery (no more than 4 weeks prior) of any size |
Undergone refractive adaptation1 | Undergone refractive adaptation (if indicated)1,2 | Undergone refractive adaptation (if indicated) 1,2 |
No previous patching or penalisation | Previous patching or penalisation acceptable | Previous patching or penalisation acceptable |
No previous strabismus surgery | No previous strabismus surgery | Treatment to start within 4 weeks of strabismus surgery but no previous strabismus surgery |
Can use I-BiT Plus | Can use I-BiT Plus | Can use I-BiT Plus |
Exclusion criteria | ||
Deprivational amblyopia | ||
Presence of manifest nystagmus | ||
Other ocular or neurological disease affecting the visual system3 | ||
Parent, guardian or child not prepared to give consent | ||