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Impact of Spectacles on Compliance to Mask-wearing Directives

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

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04501172
Enrollment
1214
Registered
2020-08-06
Start date
2020-06-25
Completion date
2020-08-14
Last updated
2020-09-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Covid19

Keywords

face masks, spectacles, contact lenses, compliance in mask-wearing directive

Brief summary

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.

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

Interventions

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.

Sponsors

Democritus University of Thrace
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 85 Years
Healthy volunteers
Yes

Inclusion criteria

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

Exclusion criteria

* Poor knowledge of Greek language

Design outcomes

Primary

MeasureTime frameDescription
Questionnaire subscale: Emotional impactlast 3 monthsEmotional charge when using a face mask 5-point Likert scale (1 = I absolutely agree / 5 = I absolutely disagree)
Questionnaire subscale: Drivinglast 3 monthsDifficulty 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
Questionnaire subscale: Limitationlast 3 monthsLimitation 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)
Questionnaire subscale: Collaborationlast 3 monthsDifficulty 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
Questionnaire subscale: Need for helplast 3 monthsNeed 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)
Demographic characteristicslast 3 months1. 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)
Compliance to mask-wearing directiveslast 3 monthsCompliance to mask-wearing directives 1. Yes, always 2. Yes, almost always 3. Sometimes 4. No, almost never 5. No, never
Questionnaire subscale: Near visionlast 3 monthsDifficulty 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
Questionnaire subscale: Distance visionlast 3 monthsDifficulty 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
Questionnaire subscale: Ocular discomfortlast 3 monthsOcular discomfort (tearing sensation, stinging sensation, general discomfort) when using a face mask 5-point Likert scale (1 = I absolutely agree / 5 = I absolutely disagree)

Secondary

MeasureTime frameDescription
Assessment of the relationship between the compliance to mask-wearing directives and the other demographic characteristicsimmediately after the completion of data collectionChi-squared test will be performed to assess if the compliance to mask-wearing directives is related to the other demographic characteristics
Assessment of the relationship between the compliance to mask-wearing directives and the questionnaire itemsimmediately after the completion of data collectionChi-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)
Assessment of the relationship between demographic characteristics and the 20 questionnaire itemsimmediately after the completion of data collectionChi-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)
Assessment of the relationship between the compliance to mask-wearing directives and the use of spectaclesimmediately after the completion of data collectionChi-squared test will be performed to assess if the compliance to mask-wearing directives is related to the use of spectacles

Countries

Greece

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026