Ignite Creation Date:
2024-05-06 @ 4:15 PM
Last Modification Date:
2024-10-26 @ 2:07 PM
Study NCT ID:
NCT04929119
Status:
UNKNOWN
Last Update Posted:
2021-06-18
First Post:
2021-06-14
Brief Title:
The Effect of Wearing Orthokeratology on Objective Visual Quality
Sponsor:
XiaoYong Liu
Organization:
First Affiliated Hospital of Jinan University
Study Overview
Official Title:
The Effect of Wearing Orthokeratology on Objective Visual Quality
Status:
UNKNOWN
Status Verified Date:
2021-06
Last Known Status:
RECRUITING
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief 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
Detailed 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 completedThe 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 Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None