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Completed

NCT Number: NCT05365373

The Effect of Treatment Zone Decentration on Axial Length Elongation After Orthokeratology

Orthokeratology lens is an effective method for myopia control. This study analyzed the effects of treatment zone decentration on axial length elongation in adolescents with orthokeratology lens.

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Key information

Conditions

Myopia Eye Diseases Orthokeratology Refractive Errors

Age range

8 year–15 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Tianjin Eye Hospital

Tianjin, Tianjin Municipality, China

About this study

Orthokeratology lens is an effective method for myopia control. This study aimed to investigate the effects of treatment zone decentration on axial length elongation in adolescents with orthokeratology lens in 1 year. Other factors that may affect axial growth were also analyzed.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • age from 8 to 15years
  • 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
  • stop wearing for ≥7 days for any reason during the follow-up period
  • keratoconjunctival complications, glare, diplopia, or any other symptoms during follow-up

Treatment and study plan

Primary outcomes

  1. The change of axial length

    Time frame: The change of baseline、6 months and 12months

    The axial length was measured by IOL-Master 500, its expressed in mm

Secondary outcomes

  1. the decentration magnitudes of the treatment zone

    Time frame: up to 1 year

    The value of decentration magnitudes was obtained and calculated from a corneal topography

Sponsors and collaborators

Lead sponsor

Tianjin Eye Hospital

Other

Registry information

Important dates

Study start
2018
Primary completion
2019
Study completion
2019
First posted
May 9, 2022
Registry last updated
May 9, 2022

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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