<qa>  What is the difference between the acuity difference and the interocular visual difference?- Interocular visual acuity difference of more than 0.2 logMAR 2 lines on ATS HOTV for patients 3 to 7 years old or 10 letters on E-ETDRS for patients 7 years old andor investigator plans to initiate amblyopia treatment at this time. 