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Assessment of Corneal Biomechanics With the Corvis ST in Different Age of Myopia With Orthokeratology

T

Tianjin Eye Hospital

Status

Completed

Conditions

Myopia
Orthokeratology

Study type

Observational

Funder types

Other

Identifiers

NCT05635526
2022049

Details and patient eligibility

About

The present research focused on the effect of the age for the corneal biomechanics of low and moderate myopia patients after wearing orthokeratology (OK lens). According to age, the included cases were divided into 3 groups. Through the analysis of corneal biomechanical parameters, further learn the influence of OK lens on the patient cornea. It would help ophthalmologist and optometrist find out the potential issue and reach a better control result.

Full description

The present research focused on the effect of the age for the corneal biomechanics of low and moderate myopia patients after wearing orthokeratology (OK lens). According to age, the included cases were divided into 3 groups: Ⅰ (8-12 years old), Ⅱ (13-16 years old), Ⅲ (over 16 years old). The OK lenses used in the present study are of the same design (Euclid Systems Orthokeratology; Euclid System, Herndon, VA, USA). The base line (Day 0) and different follow-up time point (Day 1, Week 1, Week 2, Month 1, Month 3, and Month 6) of dynamic corneal response (DCR) (including 19 items) of the patients derived by Corvis ST were collected. The difference between before and after wearing OK Lens and the changes of parameters among the three groups were both analyzed. And the correlation between axis length (AL) and the 19 parameters also was analyzed. Through the analysis of corneal biomechanical parameters, further learn the influence of OK lens on the patient cornea. It would help ophthalmologist and optometrist find out the potential issue and reach a better control result.

Enrollment

134 patients

Sex

All

Ages

8 to 40 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • age from 8 to 40 years old
  • spherical equivalent(SE) was range from -1.00D to -5.00D
  • conform to the standard of wearing orthokeratology lens

Exclusion criteria

  • ocular diseases and systemic diseases
  • visual acuity was less than 20/20
  • unable to follow visitors on time

Trial design

134 participants in 3 patient groups

1
Description:
8-12 years old
2
Description:
13-16 years old
3
Description:
over 16 years old

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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