Orthokeratology for presbyopia: Exploring refractive and corneal changes in hyperopic orthokeratology lens wear for correction of near vision in presbyopic patients

A prospective, repeated measures study investigating the effect of hyperopic orthokeratology lens wear on corneal shape and refractive status in healthy presbyopic patients, when worn to correct near vision

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12610000731099

Enrollment

Registered

2010-09-02

Start date

2011-06-24

Completion date

2012-07-02

Last updated

2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

This study aims to determine whether hyperopic orthokeratology lenses can be used to provide effective mono-vision type correction for near vision in presbyopic adults. The effect of overnight hyperopic orthokeratology lens wear on refraction, ocular aberrations and corneal shape will also be investigated.

Interventions

Presbyopic participants will be asked to wear hyperopic orthokeratology lenses in one eye overnight only for a period up to 90 days. Boston Simplus solution will be used for cleaning and disinfection while lenses are not being worn.

Study design

Allocation

Non-randomised trial

Intervention model

Single group

Primary purpose

Prevention

Masking

Open (masking not used)

Eligibility

Sex/Gender

All

Age

45 Years to 65 Years

Healthy volunteers

Yes

Inclusion criteria

Good ocular health, No contraindications to contact lens wear, Central corneal radius between 7.00mm & 8.40mm, Less than 1.50D of with-the-rule corneal astigmatism

Exclusion criteria

Rigid contact lens wearers, active ocular pathology, Systemic disease or use of medications that may affect the eye or be exacerbated by wearing contact lenses, history of corneal surgery including refractive surgery, pregnancy

Outcome results