6533b824fe1ef96bd1280027
RESEARCH PRODUCT
pH of multipurpose contact lens solutions over time
Antonio López-alemanyRobert Montés I Micósubject
Contact lensOphthalmologyContact lens solutionsChromatographyMaterials scienceGeneral MedicinePh measurementOptometryBiomedical engineeringdescription
The pH of nine different brands of multipurpose contact lens solutions available in Spain was determined over a period of 32 days after opening the bottles. Five bottles of nine solutions were used, each of which was buffered and obtained from different manufacturers. The pH measurements were taken using a micropH 2002 Crison pH-meter (accuracy +/- 0.001 pH units). Each solution was measured three times daily over the test period using 10-ml samples taken from the same container. Fluctuations in pH over time were observed but these were within the range of ocular comfort. The average pH of all the solutions tested proved to be between 6.99 and 7.56.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-01-01 | Contact Lens and Anterior Eye |