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  • Title: A comparison of multipurpose and conventional 2-step rigid gas-permeable solutions with Paragon corneal refractive therapy lenses.
    Author: Rah MJ, Deng L, Johns L, Lang J.
    Journal: Optometry; 2009 Apr; 80(4):193-6. PubMed ID: 19329063.
    Abstract:
    PURPOSE: This investigation compared 2 commonly used care systems, Boston Advance(R) care system and Boston Simplus (Bausch & Lomb, Rochester, New York) multipurpose solution, and the effects of these solutions on unaided daytime vision, care, and handling and comfort with Paragon corneal refractive therapy (CRT)(R) (Paragon Vision Sciences, Mesa, Arizona) lenses. METHODS: Eighteen subjects wearing CRT lenses were recruited. Three evaluations were conducted over 2 months. Subjects were randomly assigned a solution and returned for a follow-up visit after 1 month. At the conclusion of the 1-month visit, each patient was reassigned the other solution for the second month. The final visit included an additional questionnaire regarding which solution was deemed the best and worst for unaided daytime vision, comfort, care, and handling. RESULTS: From the responses of the 18 patients, a trend is evident that patients favor Boston Simplus over Boston Advance for comfort, unaided daytime vision, and care and handling. However, the sample size is small in this study; therefore, most of the differences are not significant at the 0.05 level except the preference for care and handling (P = 0.03). CONCLUSIONS: Patients preferred Boston Simplus to Boston Advance with corneal reshaping lens wear when evaluated for comfort, unaided daytime vision, and care and handling. The preference of Boston Simplus to Boston Advance for care and handling is very strong and statistically significant, whereas other such advantages of Boston Simplus were not found to be statistically significant in this study. Further confirmation of these results as well as a better understanding of other visual and ocular interactions of Boston Simplus versus conventional solutions, will require using a larger sample in further studies.
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