Undine (medical)

An undine with its original box

An undine is an ophthalmic irrigation device which was used to trickle a cleansing liquid over the conjunctival surface while controlling the flow with the thumb or finger over the filling hole. It has now been superseded by more modern equipment.[1][2]

The undine is a spherical or pear-shaped glass flask generally about 2 to 3 inches in diameter with a 2 to 3-inch narrowing spout on one side and a collared opening on the top about half an inch wide.[3]

They were used predominantly from the 1930s to the 1960s after which single-use plastic disposable equivalents became available.[4] As glass undines require careful cleaning and sterilization after each use, single-use plastic equivalents were preferred as they are cheaper and require no careful handling.

## References

1. ↑ Weller, Barbara F. (11 April 2014) (in English). Balliere's Nurses' Dictionary (26 ed.). Elsevier Health Sciences. pp. 416. ISBN 9780702053733.
2. ↑ Marsden, Janet (March 1999) (in English). Minor Trauma Management. 6 (10 ed.). University of the West of England. pp. 22 (para 4). ISBN 9780702053733. https://books.google.com/books?id=sw5tAwAAQBAJ&q=undine+eye+irrigator&pg=PA416.
3. ↑ "Undine". Farlex. http://medical-dictionary.thefreedictionary.com/Undines.
4. ↑ "Undine Eye Irrigator". 2017. http://mhc.andornot.com/en/permalink/artifact14473.

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