It has been observed that contact
lens solution sometimes evaporate overnight in contact lens cases and
sometimes it takes a bit longer; but sooner or later the solution has to
evaporate.
A research study was conducted by Abbot Medical Optics in
2009 which revealed that on evaporation of contact lens solution; many people
fail to use fresh contact lens solution after each use. Instead; they prefer
“topping off” the multi-purpose solution. Topping
off contact lens solution is associated with several eye infections &
hence is never recommended. It is better to be safe than sorry.
Reasons of Contact
Lens Solution Evaporation
The contact lens solution evaporates because of dry climate
and lower levels of humidity. Moreover; the air conditioning may also facilitate
quick evaporation. This is why you get dry eyes whilst wearing contact lenses
in an air-conditioned building. It is always a good idea to lubricate and
re-lubricate your eyes when dryness is noticed at wearing contact lenses.
What to do to Prevent
Evaporation of Contact Lens Solution
To prevent evaporation of contact lens solution it is
advised to keep your contact lens cases
- Enclosed in a zipper bag. This way you ensure to create a barrier between your lens case and direct open atmosphere. When the cases are not properly capped or are lying in an open atmosphere; the lower humidity levels and hot or dry temperature dries off the solution from cases.
- If you cannot arrange a zipper bag; prevent evaporation by keeping your contact lens cases protected in a lens kit. It also helps preventing direct exposure of contact lens cases to the climatic changes.
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