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Preservative toxicity PDF Print E-mail
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Sunday, 18 October 2009 11:12

The vast majority of eye drops contain preservatives and the commonest one used is benzalkonium chloride.

Glaucoma drops such as latanoprost are formulated with high concentrations of preservative and unfortunately this leads to dry eye, and other side effects. Some studies link benzalkonium chloride with red eye (hyperaemia) and ocular comfort, which may have a secondary effect on compliance with medication. For patients not able to tolerate eye drops, or for those wishing to reduce dependency on drops, SLT offers a way of cutting down on medication. Particularly for those on multiple medications - the fewer the medications the better for compliance - laser treatment can cut the number of drops required down usually from 3 to 2, or 2 to 1, etc.

Last Updated on Friday, 10 September 2010 10:37