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[Observations on the pH value of various artificial tears preparations]
1Universitäts-Augenklinik Mainz.
Klinische Monatsblatter Fur Augenheilkunde
|October 23, 1998
Abstract
Background:
The pH-values of artificial tears have not been examined up to now.
Materials And Methods:
The pH-values of 20 commercially available artificial tears were determined.
Results:
pH-values measured from 4.82 to 8.39. One sixth showed pH-values above physiological values.
Conclusion:
A remarkable proportion of commercially available artificial tears deviate from the physiological range of the pH. It does not seem advisable to apply those in eyes with damaged anterior segments.