NCT05684302

The Effect of the Free-toroidal Design Lenses on the Subjective Visual Quality in the Myopic Population

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 200 (actual)
• Sponsor: Tianjin Eye Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 50 Years
• Healthy volunteers: —

Summary

A prospective, self-control, double-blind design was conducted in Tianjin. Two hundred participants were assigned to wear two kinds of spectacle glasses. To examine the effect of free-toroidal design and aspherical lens on the subjective visual quality among the myopic population.

Detailed description

A prospective, self-control, double-blind design was conducted in Tianjin. Two hundred participants were assigned to wear two kinds of spectacle glasses. To examine the effect of free-toroidal design and aspherical lens on the subjective visual quality among the myopic population. The subjective visual quality of clarity and comfort were determined using a questionnaire when first wearing the glasses and after 1week.

Conditions

• Myopia
• Refractive Errors

Interventions

Type	Name	Description
OTHER	The free-toroidal design lenses	Participants were asked to wear the new design lenses (the free-toroidal design lenses) for 1 week

Timeline

• Start date: 2021-01-01
• Primary completion: 2021-12-24
• Completion: 2021-12-24
• First posted: 2023-01-13
• Last updated: 2023-01-13

Locations

1 site across 1 country: China