ETDRS eye chart

The ETDRS vision chart is produced by professional ophthalmologists and is committed to providing the most accurate ETDRS vision examination platform possible. Functional features: - Supports ETDRS vision examination guided by the program, supporting up to 15 lines of visual marks; - Automatic conversion corresponding to logMAR and decimal visual acuity values ​​- Supports distance selection in steps of 5cm between 25cm and 5 meters; - Supports up to 5 types Optotypes, especially LEA optotypes suitable for younger children; - Optotypes are displayed randomly; current inspection line and inspection optotype prompts; visual acuity scale decimal, standard logarithm, fraction and other display forms; supports crowding effect; - iPhone and Universal iPad platform, free to switch between horizontal and vertical screens. Special statement: The vision test itself is a highly subjective test, and the test results obtained using this application cannot be used as the basis for medical diagnosis and treatment.