title: [The development of an intelligent vision testing instrument].
abstract: The paper introduces an intelligent vision testing instrument, which works on automatic method or manual method. The examinee inputs his or her judgement about the direction of the letter "E" with remote control. The system examines and judges the examinee's judgement, and then prints the testing report. The vision testing range is from logarithm vision 3.0 to 5.3. The distance between examinee and optometer can be measured automatically by the system with infrared and ultrasonic testing functions and a good accuracy.
authors.affiliation: Affiliated Nanjing First Hospital of Nanjing Medical University.
authors.forename: H
authors.initials: H
authors.lastname: Jiang
authors.forename: L
authors.initials: L
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Ma
authors.forename: S
authors.initials: S
authors.lastname: Wan
authors.forename: X
authors.initials: X
authors.lastname: Zhao
authors.forename: T
authors.initials: T
authors.lastname: Ma
authors.forename: Y
authors.initials: Y
authors.lastname: Zhang
mesh_terms: D003936:Diagnosis, Computer-Assisted / Q000295:instrumentation*; D004867:Equipment Design; D012984:Software; D014787:Vision Tests / Q000295:instrumentation* / Q000379:methods