Laboratory findings in tear fluid analysis.

  title={Laboratory findings in tear fluid analysis.},
  author={Yoshiki Ohashi and Murat Doğru and Kazuo Tsubota},
  journal={Clinica chimica acta; international journal of clinical chemistry},
  volume={369 1},
The tear film, composed of the lipid, aqueous and mucin layers, has many functions including defending the ocular surface. The tear film covering the ocular surface presents a mechanical and antimicrobial barrier and ensures an optical refractive surface. The lipid component originates from the meibomian glands of the tarsus and forms the superficial layer of the tear film. The aqueous component contains electrolytes, water, and a large variety of proteins, peptides and glycoproteins, and is… CONTINUE READING