An evaluation of contact lens and phase plate designs incorporating a novel surface shape to allow clear distance and near vision.

Not Applicable

• Conditions: Presbyopia; Eye - Diseases / disorders of the eye

• Registration Number: ACTRN12618000717257
• Lead Sponsor: Brien Holden Vision Institute

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2018-05-01
• Last Update Posted: 15 July 2019

Recruitment & Eligibility

• Status: ot yet recruiting
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

•Age 18 or greater
•Able to read and comprehend English
•Have vision correctable to at least 6/9 or better in at least one eye
•Have ocular health findings considered to be normal” and which would not prevent the participant from safely wearing contact lenses.

Exclusion Criteria

•Existing active eye conditions
•Any systemic disease that adversely affects ocular health e.g. diabetes
•Recent ocular trauma or ocular surgery that is not resolved/stable or may affect vision
•Prior refractive surgery (LASIK, LASEK, RK, PRK, IOL etc.)
•Contraindications to contact lens wear.
•Known allergy or intolerance to ingredients in any of the clinical trial products.
•Use of or a need for any systemic medication or topical medications which may alter normal ocular findings
•Inability to focus for prolonged periods (e.g., due to strabismus, nystagmus, etc.)
•Pregnant women, breast-feeding women, or women who plan to become pregnant during the course of the study.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Visual acuity at high and low contrast will be assessed using electronic logMAR charts at 6 m, 70cm, 50 cm and 40 cm.[The primary outcome will be assessed at baseline and 20 minutes after contact lens insertion, for each contact lens type. No waiting period is required in the case of phase plates. <br>]