Impact of Spectacles on Compliance to Mask-wearing Directives

September 13, 2020 updated by: Georgios Labiris, Democritus University of Thrace

Impact of Spectacles on Compliance to Mask-wearing Directives in Greece

Primary objective of this study is to identify the compliance of Greek people in mask-wearing directive and explore potential associations with refractive errors, spectacles and contact lenses use.

Study Overview

Status

Completed

Conditions

Detailed Description

Present study aims to identify whether Greek people have complied with mask-wearing directive and to investigate the correlation of outcomes with visual acuity - refractive errors, spectacles and contact lenses use. For the purposes of this research, a questionnaire of 20 items including the following sub scales have been developed: a) near vision, b) distance vision, c) ocular discomfort, d) driving, e) limitations, need for help, work collaboration, and emotional impact

Study Type

Observational

Enrollment (Actual)

1214

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Evros
      • Alexandroupolis, Evros, Greece, 68100
        • University Hospital of Alexandroupolis

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 85 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

People who use social networks, with permanent residence in Greece, aged above 18 years old and adequate literacy of Greek language

Description

Inclusion Criteria:

  • Age >18 years old
  • Adequate literacy of Greek language
  • Permanent residence in Greece

Exclusion Criteria:

  • Poor knowledge of Greek language

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Study group
People who use social networks, with permanent residence in Greece, aged above 18 years old and adequate literacy of Greek language

Participants are contacted through social networks (Facebook) which provide a link to website that contains the questionnaire. Then, they complete the questionnaire which consists of the following 2 parts:

  1. participant's demographic characteristics with questions regarding age, visual acuity - refractive error, spectacles and contact lenses use, and compliance to mask-wearing directives.
  2. 20 items that construct 5 subscales: a) near vision (5 items), b) distance vision (3 items), c) ocular discomfort (3 items), d) driving (2 items), e) limitations (3 items), need for help (2 items), work collaboration (1 item), and emotional impact (1 item).

The impact of spectacles on the compliance of Greek people to mask-wearing directives will be assessed via this questionnaire.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Demographic characteristics
Time Frame: last 3 months
  1. Gender
  2. Age
  3. Use of spectacles (a. no use, b. for distance, c. for near, d. for distance and near)
  4. Use of contact lenses (a. no use, b. rarely, c. frequently, d. almost always)
  5. Belonging to a vulnerable group (1. No, 2. Yes, 3. I don't know)
  6. Binocular Distance Best Spectacle-Corrected Visual Acuity (if it is known) (1. I don't know, 2. <1/10, 3. 1-3/10, 4. 4-6/10, 5. 7-8/10, 6. 9-10/10)
last 3 months
Compliance to mask-wearing directives
Time Frame: last 3 months

Compliance to mask-wearing directives

  1. Yes, always
  2. Yes, almost always
  3. Sometimes
  4. No, almost never
  5. No, never
last 3 months
Questionnaire subscale: Near vision
Time Frame: last 3 months

Difficulty in near vision activities (reading a printed document in the workplace or in daily life, reading a document on computer in the workplace or in daily life, reading a message on mobile phone) when using a face mask

  1. No difficulty
  2. Little difficulty
  3. Some difficulty
  4. Great difficulty
  5. I have stopped this activity because of my vision and the use of face mask
  6. I need to remove my face mask
last 3 months
Questionnaire subscale: Distance vision
Time Frame: last 3 months

Difficulty in distance vision activities (recognizing people on the opposite sidewalk, reading road and shop signs, crossing roads) when using a face mask

  1. No difficulty
  2. Little difficulty
  3. Some difficulty
  4. Great difficulty
  5. I have stopped this activity because of my vision and the use of face mask
  6. I need to remove my face mask
last 3 months
Questionnaire subscale: Ocular discomfort
Time Frame: last 3 months

Ocular discomfort (tearing sensation, stinging sensation, general discomfort) when using a face mask

5-point Likert scale (1 = I absolutely agree / 5 = I absolutely disagree)

last 3 months
Questionnaire subscale: Driving
Time Frame: last 3 months

Difficulty in driving (during day or night, in known or unknown places) when using a face mask

  1. No difficulty
  2. Little difficulty
  3. Some difficulty
  4. Great difficulty
  5. I have stopped this activity because of my vision and the use of face mask
  6. I need to remove my face mask
last 3 months
Questionnaire subscale: Limitation
Time Frame: last 3 months

Limitation during physical activity, entertainment, social relationships, professional and learning development when using a face mask

5-point Likert scale (1 = I absolutely agree / 5 = I absolutely disagree)

last 3 months
Questionnaire subscale: Collaboration
Time Frame: last 3 months

Difficulty in collaboration with colleagues in the workplace when using a face mask

  1. No difficulty
  2. Little difficulty
  3. Some difficulty
  4. Great difficulty
  5. I have stopped this activity because of my vision and the use of face mask
  6. I need to remove my face mask
last 3 months
Questionnaire subscale: Need for help
Time Frame: last 3 months

Need for help during shopping (supermarket, grocery store, bakery) or in public services (bank etc) when using a face mask

5-point Likert scale (1 = I absolutely agree / 5 = I absolutely disagree)

last 3 months
Questionnaire subscale: Emotional impact
Time Frame: last 3 months

Emotional charge when using a face mask

5-point Likert scale (1 = I absolutely agree / 5 = I absolutely disagree)

last 3 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Assessment of the relationship between the compliance to mask-wearing directives and the use of spectacles
Time Frame: immediately after the completion of data collection
Chi-squared test will be performed to assess if the compliance to mask-wearing directives is related to the use of spectacles
immediately after the completion of data collection
Assessment of the relationship between the compliance to mask-wearing directives and the other demographic characteristics
Time Frame: immediately after the completion of data collection
Chi-squared test will be performed to assess if the compliance to mask-wearing directives is related to the other demographic characteristics
immediately after the completion of data collection
Assessment of the relationship between the compliance to mask-wearing directives and the questionnaire items
Time Frame: immediately after the completion of data collection
Chi-squared test will be performed to assess if the compliance to mask-wearing directives is related to the 20 questionnaire items and the corresponding subscales (outcome measures 3-10)
immediately after the completion of data collection
Assessment of the relationship between demographic characteristics and the 20 questionnaire items
Time Frame: immediately after the completion of data collection
Chi-squared test will be performed to assess if demographic characteristics are related to the 20 items of the questionnaire and to the corresponding subscales (outcome measures 3-10)
immediately after the completion of data collection

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Labiris Georgios, MD, PhD, Department of Ophthalmolgy, University Hospital of Alexandroupolis, Greece

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 25, 2020

Primary Completion (Actual)

July 24, 2020

Study Completion (Actual)

August 14, 2020

Study Registration Dates

First Submitted

July 25, 2020

First Submitted That Met QC Criteria

August 1, 2020

First Posted (Actual)

August 6, 2020

Study Record Updates

Last Update Posted (Actual)

September 16, 2020

Last Update Submitted That Met QC Criteria

September 13, 2020

Last Verified

September 1, 2020

More Information

Terms related to this study

Other Study ID Numbers

  • ES8/Th5/25-06-2020

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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