Publications
Publications
2021 |
D.D.Tzamouranis,; Chandrinos, A. Dataset on the questionnaire-based survey of the perceived risk of COVID-19 infection and Contact lens (CL) wearers Journal Article In: Data Brief, 2021. Abstract | Links | BibTeX | Tags: contact lenses, COVID-19 pandemic, COVID-RS scales, eye care, infection risk, public health, vision science @article{D.D.Tzamouranis2021, The data set presents data collected by an online questionnaire, applying closed-ended question types (multiple-choice, Likert scale) and questions Skip Logic. Instruments from previous studies in the field of optometry such as Contact Lens User Experience (CLUE Scales), Quality of Life Questionnaire (CLIQ), Quality of Vision (QoV) Questionnaire, did not meet the needs of this study. Therefore, in order to provide a statistically valid and consistent instrument to examine the psychopathological reactions in Contact lens wearers due to COVID-19, a new questionnaire was designed. The steps followed to collect and manage data were, definition of the objectives of the study, questionnaire design, questionnaire pilot testing (validity, reliability, repeatability), data administration and results interpretation. This descriptive survey employed online data collection using an anonymized questionnaire. The questionnaire was made available via an online link on social networks from 28/09/2020 to 11/10/2020. The questionnaire, in order to record the psychopathological reactions in Contact lens wearers due to COVID-19, was structured according to three psychopathological reactions (COVID-RS scales), (a) disorganized behaviors, (b) avoidant behaviors, (c) maladaptive information consumption. Therefore includes, (a) socio-demographic variables such as, (age, gender, educational level, Professional status, geographical area of habitation), (b) Health and Consumer behavior in Contact lens wearers, (c) Perceived risk of infection due to COVID-19 in Contact lens users, with a total of 22 items and maximum completion time 4 min. The survey included 1676 participants, 1037 were Contact Lens users and completed the online questionnaire. Of them, 76.7% (795) were female and 23.3% (242) were male. The educational level of the participants was, 7.5% (8) primary education, 18.9% (197) Secondary education, 57.9% (601) Undergraduate education, 22.3% (231) Postgraduate education. According to the age groups, 68.2% (707) participants were between 18 and 34 years old, 23.4% (278) participants were between 35 and 54 years old, 4.8% (50) participants were between 55 and 74 years old, 0.2% (2) participants were 75 and over. All data were exported to Excel spreadsheets. Only the completed questionnaires were used in the analyses. Data were analyzed using the Statistical Package for Social Sciences (SPSS) software version 24. Cronbach's alpha showed for the group, Health and Consumer behavior in Contact lens wearers (6 items), to reach acceptable reliability α= 0,881. Cronbach's alpha showed for the group, Perceived risk of infection due to COVID-19 in contact lens wearers (6 items), to reach acceptable reliability α= 0,886. The data set can be used to understand the relationship between the perceived risk of Covid-19 infection and contact lens (CL) use, the potential effect of the pandemic in Health and consumer behavior in Contact lens users, to draft a survey strategy and design, to verify results, etc. |
Chandrinos, A.; Tzamouranis, D. D. Effect of the COVID-19 Pandemic on Contact Lens Wear in Greece Journal Article In: Ophthalmology Research: An International Journal, vol. 14, no. 1, pp. 22-29, 2021. Abstract | Links | BibTeX | Tags: contact lenses, COVID-19 pandemic, eye care, infection risk, public health @article{Chandrinos2021c, Purpose: This study demonstrates the actions that took over the contact lens (CL) wearers in Greece after the COVID-19 pandemic.Methods: The study includes nameless web-based survey used to measure participants demographics, CL wear history, and custom wear activity of CL in a stage of noticeable risk of infection due to CL wear during the COVID-19 pandemic. Results: During the lockdown A’ in Greece about half of the participants (42.5%) believe that the perceived risk of infection using CL was extremely effective (29%) and very effective (13.5%). Only a minority (18 %) of the participants do believe that the use of CL increases the risk of COVID-19 infection. Another population (43%) do not agree with this opinion and more than a third of them (39%) resemble that are not affected by this opinion or are less informed. |
2020 |
Pateras, E. Statistical Study on the Use of Contact Lenses in Greece Journal Article In: Asian Journal of Research and Reports in Ophthalmology, vol. 3, pp. 22-40, 2020. Abstract | Links | BibTeX | Tags: contact lenses, replacement scheme, silicon hydrogel, sleeping with CLs, vision quality, wearers satisfaction @article{Pateras2020b, Purpose: This study was conducted in order to examine the behavior of contact lenses users, the type of contact lenses they use, their satisfaction with their contact lenses after evaluation by the users themselves, both in the quality of vision and in the comfort they offer. Material and Methods: A questionnaire in printed form was used to conduct the research, which was distributed to optical stores in Glyfada, Maroussi (suburbs of Athens) and the city of Kalamata province in Peloponnese. An online questionnaire was created for the e-shops of the collaborating optical stores, which was completed by internet users. The sample was 380 people, users of contact lenses, and their age ranged from 18 to 55 years old. The study was contacted in six months from January 2019 to June 2019 Results: The material of the contact lenses preferred by the users are the silicone-hydrogel lenses (71.05%), the monthly use is prevalence (74.74%) the days of use are 7 days per week (59.74%) while the hours of use that appear more frequently are 8 to 12 hours per day (42.11%). The main reason for the use of contact lenses is the external appearance (48.16%). 88.4% of the population considers the insertion and removal of lenses an easy process as well as the comfort offered by the lenses during application was evaluated positively in the largest sample (42.37%). The signs that seem to encourage users to replace their lenses is not the time of use but mainly sensation of dry eyes (29.21%), intolerance (22.11%) and blurred vision (20.26%). The quality of vision with CLs is Very good to Good at a percentage of 94.74%, while only 12,89% sleep with their lenses. Conclusions: There is a need to further investigate the performance of contact lenses, from the side of wearers, both in the global scientific community and in Greece, as the scientific literature on this issue needs continuous updating. The majority prefers and wears soft CLs, silicone-hydrogel especially, and the satisfaction percentage is high. The usage of CLs during sleep is a big concern for the professional CL fitters as 1 of 10 users use them. |
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