Landolt Optometric Chart at 5 Meters - Precision and Reliability for Vision Test This Landolt Optometric Chart, is a tool for visual health professionals. This wall-mounted Chart made on PVC NTR Sheet. Chart is designed to measure angular visual acuity at a distance of 5 meters. It uses Landolt rings, optotypes in the shape of broken circles, to accurately assess the patient's visual capacity. The orientation of the rings varies, providing a comprehensive vision measurement. This device is particularly useful for children and illiterate individuals. Its robust design and easy maintenance, cleanable with soapy water, make it a preferred choice in medical offices and ophthalmology clinics.