Table 1 An overview of the two arms of the trial
Intervention arm | Comparator arm | |
|---|---|---|
Age group | 11–15 years | 11–15 years |
Screening VA level | <6/9.5 in one or both eyes | <6/9.5 in one or both eyes |
Method of screening | Peek E Acuity by field workers | E card optotype by field workers |
Health education | • SightSim images for classroom teaching by field workers, after orientation i.e. for all children | None |
• Eligible children will select a SightSim image of their choice from a range of pre-tested images to take home to show their parents with wording in the relevant local language | ||
• Personalized voice messages for parents in the relevant local language | ||
Refraction | Trained optometrist | Trained optometrist |
Definition of significant RE | Same in both arms of the trial | Same in both arms of the trial |
Dispensing criteria | Same in both arms of the trial | Same in both arms of the trial |
Frame types | Same in both arms of the trial | Same in both arms of the trial |
Delivery of spectacles | Same in both arms of the trial | Same in both arms of the trial |
Assessment of primary outcome | Same in both arms of the trial | Same in both arms of the trial |