Tear Osmolarity

The TearLab Osmolarity System is used to measure the quality of patient tears to aid the doctor in the diagnosis of dry eye.

The TearLab Osmolarity System is used to aid the doctor in the diagnosis of dry eye in patients with dry eye symptoms such as:

  • Trouble wearing contacts successfully
  • Tearing
  • Burning
  • Itching
  • Having a sandy, gritty feeling

Sometimes patients will have dry eyes and not know they do because their symptoms are less obvious, such as eye fatigue, glare at night and just feeling like they don't see as well as they should."


Dry eye is one of the most under-diagnosed ocular diseases. Dry eye occurs when eyes do not produce the right quantity or quality of tears and affects both men and women and is not age exclusive.


Many people mistake the dry eye symptoms for allergies, climatic conditions or just "eyestrain". While all of these may aggravate Dry Eye symptoms, they are not the cause.

Your eyes need a constant layer of tears to maintain and protect the ocular surface. In Dry Eye, underlying changes to the health of the tear-producing glands can result in a change in the quantity and quality of the tears you make and cause dry eye symptoms.


Some signs and symptoms of dry eyes are, but not limited to:

  • Sensitivity to light

  • Tearing, tired eyes

  • Difficulty wearing contact lenses, 

  • Blurred vision, often worsening at the end of the day or after visually focusing for a prolonged period on a nearby task.

There are a variety of different methods to treat dry eye disease and your doctor will prescribe a treatment plan tailored to your results and needs.