Design of new retinoscope with the ultrasonic distance measure instrument
- VernacularTitle:带超声波测距装置的新型检影镜的研制
- Author:
Junlai GUO
;
Xianglu GAO
- Publication Type:Journal Article
- Keywords:
refraction;
retinoscope;
ultrasonic distance measure
- From:
Chinese Medical Equipment Journal
1989;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
A new retinoscope with the ultrasonic distance measure instrument is designed for directly displaying the dioptre of artificial myopia caused by retinoscopy distance.Optometrist can obtain real dioptre of the patient if only adding the direct dioptre of artificial myopia to neutral dioptre obtained at roll-back point.This instrument can obviously increase the accuracy of refraction.
