The Effect of Wearing Orthokeratology on Objective Visual Quality

Status Recruiting

Clinical Trial Summary

The visual quality indexes of these patients before and after Orthokeratology treatment were compared: 4 mm higher strehl ratio (SR) , 4 mm higher order corneal aberrations (Hoa ) , Spherical Aberrations (SA) , Comas, Trefoil Aberrations (RMS) , corneal aspheric index (Q, e) , corneal surface regularity index (SRI) , corneal surface asymmetry index (Sai)

Clinical Trial Description

USING OPD-SCAN III instrument method: Drag The joystick to focus on the screen prompt, and the device automatically starts to measure the aberration when the yellow focus is shown; Simk will change from black to rose red when the aberration is measured to start measuring the corneal topography, prompting the patient to blink the tear film evenly and press the button on the joystick when the focus is completed.The following data were obtained and analyzed: 4 mm high order STREHL rate (SR) , 4 mm high order corneal aberration (Hoa ) , Spherical Aberration (SA) , Coma Aberration (Coma) , Trefoil Aberration (RMS) , corneal aspheric index (Q, e) , corneal surface regularity index (SRI) , corneal surface asymmetry index (Sai) ;

Study Design

Related Conditions & MeSH terms

Visual Quality

Clinical Trial Details

NCT number	NCT04929119
Study type	Observational [Patient Registry]
Source	First Affiliated Hospital of Jinan University
Contact	xiaoyong Liu
Phone	86-13760638809
Email	jndxlxy@163.com
Status	Recruiting
Phase
Start date	March 7, 2021
Completion date	March 31, 2022

View Details

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