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- Boström, Johanna, et al.
(författare)
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Meibography: Inter-rater reliability
- 2016
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Ingår i: 8th International Conference on the Tear Film & Ocular Surface: Basic Science and Clinical Relevance. ; , s. 47-
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Konferensbidrag (refereegranskat)abstract
- Purpose. The tear film lipid layer holds an important role in maintaining the integrity and health of the anterior surface of the eye. The meibomian glands found in eyelids are responsible for producing most of the lipids of the tear film. Dysfunction of the meibomian glands leads to increased evaporation of tears, which may lead to dry eye. Meibography is a method used for assessing the drop out of meibomian glands. The aim of this study was to evaluate the reliability between two different examiners when rating meibography images. Methods. The Sirius 3D scheimpflug camera (C.S.O., Florence, Italy) was used to photograph the everted upper and lower eyelids of the right and left eye of 52 subjects. The grade of meibomian gland loss was subjectively graded using the five-grade Meiboscale (Pult, 2012) and the percentage of gland loss was calculated using Phoenix Meibography software (version 3.0.1.021, bon Optic VertriebsGmbH, Lübeck, Germany). Data was analyzed using MedCalc for Windows (version 16.4.3, MedCalc Software, Ostend, Belgium). Results. The inter-rater reliability for the Meiboscale grade of meibomian gland loss was calculated using weighted Cohen’s kappa (linear weights). The result for all 208 images was Kw = 0.542 (95 % CI 0.454 to 0.630), which indicates a moderate agreement. The inter-rater reliability for the percentage of meibomian gland loss was calculated using intraclass correlation coefficient. The result for all 208 images was ICC = 0.794 (95 % CI 0.737 to 0.839), which indicates a substantial agreement. Conclusions. Imaging is an invaluable tool when managing patients in clinical practice. When performing meibography to evaluate meibomian gland loss, using software to calculate the percentage of gland loss gives a better inter-rater agreement than subjective grading of the images.
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| 2. |
- Gierow, Peter, et al.
(författare)
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Two-phase partitioning of rat liver plasma membranes
- 1989
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Ingår i: Plenum Press In: Fisher, D. & Sutherland, I. (eds) Separations using aqueous phase systems. Applications in cell biology and biotechnology. - New York.
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Konferensbidrag (refereegranskat)
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| 3. |
- Johansson, Oskar, 1978-, et al.
(författare)
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Trends in Swedish Contact Lens Prescribing 2017
- 2019
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Poster display 2: TRENDS IN SWEDISH CONTACT LENS PRESCRIBING 2017Presenter: Oskar JohanssonAuthors: OSKAR JOHANSSON1 , PHILP MORGAN2 , PETER GIEROW1Affiliation:1) Linnaeus University 2) University of ManchesterKey words: Contact lens, fitting, lens typePurpose: The purpose was to evaluate the trends of contact lens prescribing among Swedish optometrists in 2017.Methods: A standardized survey form developed by Morgan er al. was distributed to Swedish optometrists usingtheir professional organizations, optometry chains, direct email, and by hand directly. They were asked to fill out theform for the next ten contact lens patients after receiving the survey. Information was collected regarding the dayof fitting, age, sex, lens material, design, frequency of replacement, wear frequency, modality and type of caresystem. A weighting system is employed to account for the volume of activity undertaken by the respondents,calculated by the time period required to achieve 10 fits. All the forms and data were analyzed at the University of Manchester.Results: 57 forms were returned, including 562 fits. The mean age of the patients was 37 yrs, and 65 % were female.83 % were fitted for full-time wear and 27 % were managed as new fits. Soft contact lenses is the most fitted modalityand represents 97.8 % of all new fits and 93.6 % of all refits. Rigid contact lens fits represents therefore in grand total5.3 % with 2.2 % of the new fits and 6.4 % of the refits. About two-thirds of soft lenses prescribed were siliconehydrogels. Of the different designs, spherical lenses were most widely fitted, with toric lenses on at least one eyecoming right after. Extended wear accounts for 10.6 % of the fittings. Multi-purpose solutions were the most popularregimen prescribed at 99.4 %.Conclusions: When compared with data from Norway and Denmark, it is evident that daily disposables are morepopular in these countries (74 %), whereas in Sweden it is monthly replacements (58 %). Otherwise, the results aresimilar to what has been reported from other parts of the world.
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