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Takahiro Sunaga,1,2 Tatsuya Mimura,1 Hiroshi Matsuoka,2 Hiroaki Horikawa,1 Kazuma Kitsu,1 Atsushi Mizota1 1Department of Ophthalmology, Teikyo University School of Medicine, Itabashi-ku, Tokyo, Japan; 2Teikyo University of Science & Technology, Senju Campus 7, Adachi-ku, Tokyo, JapanCorrespondence: Tatsuya Mimura Tel +81-3-3964-1211Fax +81-3-3964-1402Email mimurat-tky@umin.ac.jpPurpose: It has been proven that wearing soft contact lenses (SCLs) can make pollen-induced allergic conjunctivitis worse. We investigated the cleaning effect of disinfectants and rinsing solution on cedar pollen attached to SCLs.Methods: Two-week replacement disposable SCLs, to which pollen particles were experimentally attached, were washed and cleaned with either saline of rinsing solution (n = 10) or 3% hydrogen peroxide (n = 10). We observed, under a microscope, the cedar pollen adhered to the SCLs after washing.Results: The number of residual pollens attached to SCLs was 23.7 ± 25.7 with rinsing solution and 0.2 ± 0.6 with 3% hydrogen peroxide solution per single area (100 μm × 100 μm). The percentage of adhesion area of pollen to the SCLs was 0.9 ± 1.1% with rinsing solution and 0.0 ± 0.0% with 3% hydrogen peroxide solution. There were significant differences in the number of pollen and adhesion areas of pollen between the two groups (p < 0.05 and p < 0.05, respectively).Conclusion: These results suggest that hydrogen peroxide solution is superior in cleaning effect of cedar pollen attached to SCLs compared to saline.Keywords: hydrogen peroxide, pollen, disinfection, soft contact lens |
