Table 2 Inclusion criteria
From: Effectiveness of screening preschool children for amblyopia: a systematic review
| Population | Children from the general population up to the age of six years |
| Intervention |
Comparison of screening versus no screening or Comparison of different screening strategies |
| Type of study |
Randomised controlled trials Non-randomised intervention studies Controlled cohort studies |
| Outcome measurements |
Prevalence rate of amblyopia measured by visual acuity Quality of life (e.g., psychosocial or emotional impairment, labelling, social isolation) Cognitive and educational development Adverse effects related to screening |