<prompt> Visual cut off for referral to nearest PHC?69 in either eye612 in either eye69 in both eyenone of the above  <response>: Visual cut off for referral to nearest PHC: 69 in either eye. Screening is done by school teachers. Female teachers are preferred. Focus on middle school5-8th covering 10-14 years age. 1,50,000 children to be screened per block One trained teacher to handle 150 students 1- day training for the teacher at nearest PHC Teacher Kit: Vision screening cards, referral cards, taperope to measure 20 feet 