Dry Eye - Evaluation & Work up

Dry eyes can usually be diagnosed by the symptoms alone.Tests can determine both the quantity and the quality of the tears.

A slit lamp examination can be performed to diagnose dry eyes and to document any damage to the eye.


Dry eyes can usually be diagnosed by the symptoms alone.Tests can determine both the quantity and the quality of the tears.

A slit lamp examination can be performed to diagnose dry eyes and to document any damage to the eye

Diagnosis of Dry Eye 

Anatomy of the Tear Film

 

Mucin Tear Deficiency

  • might be due to decreased Vitamin A, alkali burns, Cicatricial pemphigoid, SJS
  • increased tear break-up time

Lipid Tear Deficiency

Dry Eye Tests

Tests for evaluation of dryness

  • basic secretion test
  • Schirmer I
  • Schirmer I
  • Tear meniscus
  • Tear breakup time

    As part of our eyes' normal function, tear film is produced, spread over the eyeball, and continually washed out through tiny holes on the edges of the upper and lower eyelids. Our impulse to blink is due to the tear film thinning out and evaporating, giving us the automatic impulse to blink and refresh the tear film. The process of the tear film thinning out is called tear film break-up.

    When not enough tear film is being produced to keep the eye moist between blinks, or when the tear film composition is abnormal, tear film break-up can occur too quickly—before our impulse to blink. This causes dry spots to appear on the eye's surface (cornea).

    Even if tear film is fairly normal, dry spots can still appear if the cornea has been compromised in some way. The cells on the corneal surface have very delicate structures that allow the tear film to stick to the eye, and if compromised, tear film can break-up too quickly

 

Images related to dry eye disease

 

 

 

 

Videos about Dry Eye and its treatment