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Förändringar av tårfilmens osmolaritet mellan morgon och kväll hos personer utan symptom på torra ögon
Linnaeus University, Faculty of Health and Life Sciences, Department of Medicine and Optometry.
2013 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

Syfte: Syftet med studien var att utvärdera om det fanns någon variation av tårfilmens osmolariet, morgon och kväll hos personer utan symptom av torra ögon.

Metod: Tårfilmens osmolaritet mättes på totalt 30 patienter, två gånger på en dag; morgon och kväll. Mätningarna utfördes med TearLabTM osmolarity system. Både höger och vänster öga mättes på varje patient. Samtliga deltagande ombads fylla i en symptomenkät vid namn TERTC-DEQ. Endast personer utan symptom på torra ögon tilläts delta i studien. Alltså personer med totalt  17 poäng på TERTC-DEQ.

Resultat: Ingen statistisk signifikant skillnad kunde iakttas hos personernas osmolaritet mellan morgon och kväll (P > 0.05).

Slutsats: I studien kunde ingen skillnad på osmolaritet i tårfilmen iakttas mellan morgon och kväll hos personer utan symptom på torra ögon. Därmed tros tårfunktionen hos dessa personer fungera korrekt. Tårfilmens osmolaritet upprätthåller rätt balans och förändras därför inte från morgon till kväll.

Abstract [en]

Aim: The aim of this study was to determine if there is an diurnal variation in tear osmolarity among healty non dry-eye subjects.

Method: The osmolarity of the tearfilm was measured in a total of 30 subjects twice a day; morning and evening, using the TearLabTM osmolarity system. Measurements were performed on both right and left eye in all the subjects. All subjects were asked to fill in a symptom questionnaire named TERTC-DEQ and only those with a total score of  17 points were allowed to participate in the study. Subjects below this score had therefore no symptoms of dry eye.

Results: There was no statistical significant difference between the subjects tear osmolarity comparing the morning and evening values (P>0,05).

Conclusion: This study did not show any difference in the subjects tear osmolarity, comparing morning and evening measurements. None of the individuals had any symptoms of dry eye. Therefore it is believed that in subjects with no symptoms of dry eye, the tear osmolarity remains stable between morning and evening. 

Place, publisher, year, edition, pages
2013. , 24 p.
Keyword [en]
osmolarity, tear film, tearlab, diurnal, variation
Keyword [sv]
osmolaritet, tårfilm, tearlab, morgon, kväll
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:lnu:diva-26530OAI: oai:DiVA.org:lnu-26530DiVA: diva2:628393
Subject / course
Optometry
Educational program
Optometry Programme, 180 credits
Supervisors
Examiners
Available from: 2013-07-09 Created: 2013-06-13 Last updated: 2013-07-09Bibliographically approved

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CiteExportLink to record
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