MedTrace Logo

Effects of Wearing Progressive Addition Lens on Working Distance and Refractive Status in Adult Computer Users

NCT02775396 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 64

Last updated 2016-05-17

No results posted yet for this study

Summary

With the increasing reliance on tablet computers and smartphones in daily life, it is important to determine whether and how the prolonged usage of these handheld digital devices influences the working habits and refractive status. This study aimed to determine the effects of wearing conventional single-vision lenses vs. new progressive addition lenses on the working distance and refractive status while playing interactive video game in Chinese pre-presbyopic adult computer users.

Conditions

  • Video Game Play Using Handheld Computer

Interventions

DEVICE

Spectacle lens

Wearing a spectacle lens design with corrective prescription power while playing computer game using an iPad tablet computer. Two lens designs were prescribed for each participant: the conventional single-vision lens and a new progressive addition lens designed for handheld digital device. Primary outcome measures were performed immediately after each lens delivery and one-month of lens wear.

Sponsors & Collaborators

  • Carl Zeiss

    collaborator UNKNOWN

  • The Hong Kong Polytechnic University

    lead OTHER

Principal Investigators

  • Chea-su Kee, PhD · The Hong Kong Polytechnic University

Study Design

Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2014-09-30
Primary Completion
2015-03-31
Completion
2015-04-30

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02775396 on ClinicalTrials.gov