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

Tianjin Eye Hospital251 enrolled

Overview

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.

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.

Study Type

OBSERVATIONAL

Enrollment

251

Conditions

Myopia Orthokeratology

Eligibility

Sex: ALLMin age: 8 YearsMax age: 15 YearsHealthy volunteers:

Medical Language ↔ Plain English

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

Locations (1)

Tianjin Eye Hospital

Tianjin, Tianjin Municipality, China

Outcomes

Primary Outcomes

The change of axial length

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

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

Secondary Outcomes

the decentration magnitudes of the treatment zone

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

Time frame: up to 1 year

Data from ClinicalTrials.gov

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