THE INTERACTION OF HYDROPHILIC POLYMERS WITH TEAR FILM COMPONENTS IN DRY EYE SYNDROME THERAPY – MAKING THE RIGHT CHOICE
The need for the use of quality ophthalmological compositions for supplementary therapy of the dry eye syndrome (DES) is ever increasing. This study aims at elucidation of biophysical interactions between four prospective hydrophilic polymers – gellan gel (GG), carboxymethyl-celulose (CMC), hyaluron...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Union of Scientists - Stara Zagora
2019-12-01
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| Series: | Science & Research |
| Subjects: | |
| Online Access: |
http://www.sandtr.org/download.php?id=56
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| _version_ | 1827281058682372096 |
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| author | Petar Eftimov Nadezhda Stefanova Nikola Peev Georgi Georgiev |
| author_facet | Petar Eftimov Nadezhda Stefanova Nikola Peev Georgi Georgiev |
| author_sort | Petar Eftimov |
| collection | DOAJ |
| description | The need for the use of quality ophthalmological compositions for supplementary therapy of the dry eye syndrome (DES) is ever increasing. This study aims at elucidation of biophysical interactions between four prospective hydrophilic polymers – gellan gel (GG), carboxymethyl-celulose (CMC), hyaluronic acid (HA) and cross-linked hyaluronic acid (CHA) and human meibum (lipid component of the tear film). Various therapeutically accepted concentrations of the aforementioned polymers mixed with the meibum from healthy volunteers were evaluated by measurement of the film pressure. Ferning patterns of evaporated micro drops (V=3μl) from the polymers were observed and compared. The wettability of the polymers was evaluated by axisymmetric drop-shape analysis (ADSA). In lower concentrations (0.0001% and 0.001%) CMC outperformed the rest of the polymers, but in the higher concentrations (0.01%, 0.05% and 0.1%) it generated lower film pressures. Complex intermolecular rearrangements of the meibum may be responsible for that behavior. The results will contribute in getting more correct understanding of the action of some medications, used for treatment of DES and for corrections in calculating the precise concentration of their active compounds. |
| first_indexed | 2024-04-09T20:34:13Z |
| format | Article |
| id | doaj.art-0c3db75e10c74094b5781540b18f00d6 |
| institution | Directory Open Access Journal |
| issn | 2535-0765 |
| language | English |
| last_indexed | 2024-04-24T08:52:52Z |
| publishDate | 2019-12-01 |
| publisher | Union of Scientists - Stara Zagora |
| record_format | Article |
| series | Science & Research |
| spelling | doaj.art-0c3db75e10c74094b5781540b18f00d62024-04-16T09:15:36ZengUnion of Scientists - Stara ZagoraScience & Research2535-07652019-12-0156THE INTERACTION OF HYDROPHILIC POLYMERS WITH TEAR FILM COMPONENTS IN DRY EYE SYNDROME THERAPY – MAKING THE RIGHT CHOICEPetar EftimovNadezhda StefanovaNikola PeevGeorgi GeorgievThe need for the use of quality ophthalmological compositions for supplementary therapy of the dry eye syndrome (DES) is ever increasing. This study aims at elucidation of biophysical interactions between four prospective hydrophilic polymers – gellan gel (GG), carboxymethyl-celulose (CMC), hyaluronic acid (HA) and cross-linked hyaluronic acid (CHA) and human meibum (lipid component of the tear film). Various therapeutically accepted concentrations of the aforementioned polymers mixed with the meibum from healthy volunteers were evaluated by measurement of the film pressure. Ferning patterns of evaporated micro drops (V=3μl) from the polymers were observed and compared. The wettability of the polymers was evaluated by axisymmetric drop-shape analysis (ADSA). In lower concentrations (0.0001% and 0.001%) CMC outperformed the rest of the polymers, but in the higher concentrations (0.01%, 0.05% and 0.1%) it generated lower film pressures. Complex intermolecular rearrangements of the meibum may be responsible for that behavior. The results will contribute in getting more correct understanding of the action of some medications, used for treatment of DES and for corrections in calculating the precise concentration of their active compounds. http://www.sandtr.org/download.php?id=56 hydrophilic polymersdry eye syndromemeibumfilm pressureferning pattern |
| spellingShingle | Petar Eftimov Nadezhda Stefanova Nikola Peev Georgi Georgiev THE INTERACTION OF HYDROPHILIC POLYMERS WITH TEAR FILM COMPONENTS IN DRY EYE SYNDROME THERAPY – MAKING THE RIGHT CHOICE Science & Research hydrophilic polymers dry eye syndrome meibum film pressure ferning pattern |
| title | THE INTERACTION OF HYDROPHILIC POLYMERS WITH TEAR FILM COMPONENTS IN DRY EYE SYNDROME THERAPY – MAKING THE RIGHT CHOICE |
| title_full | THE INTERACTION OF HYDROPHILIC POLYMERS WITH TEAR FILM COMPONENTS IN DRY EYE SYNDROME THERAPY – MAKING THE RIGHT CHOICE |
| title_fullStr | THE INTERACTION OF HYDROPHILIC POLYMERS WITH TEAR FILM COMPONENTS IN DRY EYE SYNDROME THERAPY – MAKING THE RIGHT CHOICE |
| title_full_unstemmed | THE INTERACTION OF HYDROPHILIC POLYMERS WITH TEAR FILM COMPONENTS IN DRY EYE SYNDROME THERAPY – MAKING THE RIGHT CHOICE |
| title_short | THE INTERACTION OF HYDROPHILIC POLYMERS WITH TEAR FILM COMPONENTS IN DRY EYE SYNDROME THERAPY – MAKING THE RIGHT CHOICE |
| title_sort | interaction of hydrophilic polymers with tear film components in dry eye syndrome therapy making the right choice |
| topic | hydrophilic polymers dry eye syndrome meibum film pressure ferning pattern |
| url |
http://www.sandtr.org/download.php?id=56
|
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