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Tear Volume Test
CONTACT LENSES AND ACCESSORIES
tear test
Late 20th c.
strip: 72 x 19 mm; sterile pack: 108 x 60 mm

Tear volume (Phenol red thread) test, consisting of two yellow threads on a foil strip, sealed within a see-through sterile sachet.


2004.359

Gift of Andrew Gasson FCOptom



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