Comparison of Two Contact Lens Designs

Completed · Not applicable

Conditions studied: Computer Vision Syndrome, Accommodation

In brief

The proposed study will address this gap by comparing the efficacy of two novel stenfilcon A contact lens designs in alleviating accommodative burden associated with digital device usage. The primary outcomes are measured with the following: * Computer vision syndrome questionnaire * Binocular logMar (H/Lo contrast) visual acuity at 6M and 40cm. * Binocular range of clear vision * Subjective assessment of accommodation * Objective assessment of accommodation Subjects will be randomly assigned to wear one contact lens design for 5 days. Then crossed over tot he opposing design after a three day washout period, and again asked to wear the lens for 5 days.

Key facts

Study ID

NCT07488208

Run by

Southern College of Optometry

People needed

30

Starts

2025-05-22

Expected to finish

2025-09-02

Last updated by the study team

2026-03-25

Who can join

Age: 18 and older, up to 35. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Score of >6 on CVS-Q
• Male or female
• Age >18 years to 35 years of age
• Experienced, well-adapted contact lens wearers
• Spherical equivalent refractive error between ±6.00DS with astigmatism < -0.75D
• Normal stereopsis and binocular status

You may not qualify if…

• Monovision
• History of refractive surgery
• Binocular vision abnormalities
• Current ocular or systemic disease that may affect the eye
• Allergic reactions of ocular surfaces or adnexa that may be induced or exaggerated by wearing contact lenses or use of contact lens solutions.

Where it is running

• Southern College of Optometry — Memphis, Tennessee, United States

Full record on ClinicalTrials.gov

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