The Schirmer Tear Test Strips are designed for use in ophthalmology, specifically for measuring the volume of tears produced by the eye. Each pack contains 100 strips of tear test strips, divided into two packs for convenient handling. These strips are used for medical purposes to evaluate eye health and are ideal for professionals in the healthcare, lab, and dental industries. With free shipping available in the USA and UK, this product offers convenience and reliability for medical professionals needing to perform tear tests for their patients.