What is Dry Eye?

Dry Eye disease is a common, chronic, condition that occurs when your eyes do not have enough tear production. There are two main sub-types of dry eye: Evaporative Dry Eye and Aqueous Deficient Dry Eye. These can affect the health of your tear film which is made up of 3 layers: Lipid (oil) layer, Aqueous (water) layer, and the Mucous layer.

Evaporative Dry Eye: develops when there is poor quality of the lipid layer resulting in the rapid evaporation of tears.

Aqueous Deficient Dry Eye: is caused by the lacrimal glands not producing a sufficient amount of tears.

Symptoms of Dry Eye disease include:

  • Dryness
  • Grittiness
  • Itchiness
  • Irritated or uncomfortable eyes
  • Watery eyes or excessive tearing
  • Foreign body sensation
  • Redness
  • Burning/Stinging
  • Intermittent blur
  • Tired eyes
  • Contact Lens intolerance

Causes of Dry Eye disease include:

  • Age
  • Climate changes/environmental factors
  • Medications
  • Diseases (Sjogren’s, Rheumatoid Arthritis, etc.)
  • Eye surgery (Lasik, Cataracts, etc.)
  • Contact lenses

Types of Anterior Blepharitis

Healthy Upper Lid Margin

Healthy upper lid margin

Healthy Lower Lid Margin

Healthy lower lid margin

LABTICIAN ophthalmics

Photos courtesy of Labtician

“Do I have dry eyes?”

Some people may have dry eye symptoms but may not necessarily have dry eye disease. Click here to book a dry eye consultation.