Table 1.

Description of protocols included in the baseline and outcome stereoacuity analyses

Study	Na	Treatment groups	Age	Visual acuity testing	Baseline amblyopia severity	Outcome stereoacuity exam
15	130b	Patching ± atropine Optical correction alone	7 to <18	E-ETDRS	20/40–20/100
26	64b	Daily atropine Weekend atropine	3 to <7	ATS-HOTV	20/40–20/80
37	74	2-hour patching Glasses alone	3 to <7	ATS-HOTV	20/40–20/100
48	158 (141)	2-hour patching + near activities 2-hour patching + distance activities	3 to <7	ATS-HOTV	20/40–20/100	17 ± 1 week
59	60	Weekend atropine Weekend atropine + plano lens	3 to <7	ATS-HOTV	20/40–20/100
610	74 (40)	2-hour patching Weekend atropine	7 to <13	E-ETDRS	20/40–20/100	17 ± 1 week
711	73 (67)	2-hour patching Bangerter (full-time)	3 to <10	ATS-HOTV E-ETDRS	20/40–20/80	24 ± 2 weeks

ATS-HOTV, Amblyopia Treatment Study HOTV; E-ETDRS, Electronic Early Treatment for Diabetic Retinopathy Study.

^aSample sizes are based on the cohort included in the baseline stereoacuity analysis; sample sizes enclosed within the parentheses indicate the number of subjects included in the outcome stereoacuity analysis from specific protocols.

^bStability of visual acuity in glasses not required for study eligibility at enrollment.