TearLab®

Product Description:

TearLab^® Osmolarity System is an objective and quantitative point-of-care diagnostic test that provides precise and predictive information.

TearLab^® is intended to measure the osmolarity of human tears to aid in the diagnosis of dry eye disease in patients suspected of having dry eye disease, in conjunction with other methods of clinical evaluation.

*TearLab is for professional in vitro diagnostic use only.

TearLab not only better informs your initial diagnosis with objective data, but your treatment plan as well. Monitoring therapeutic effectiveness can also help with patient compliance as tear osmolarity improves before symptom relief. Low and stable tear osmolarity is the goal to ensure a stable tear film and healthy ocular surface.

For the measurement of osmolarity in diagnosis of dry eye
Point-of-care Osmolarity System
Measures tear film osmolarity
Hyperosmolarity is the core mechanism of dry eye

Information

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User Manual

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Trouble Shooting Guide

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Effect of Hyperosmolarity on the Ocular Surface and Visual Acuity

Product Features

Of those that had abnormal osmolarity, 59% of the patients reported having at least three DED symptoms.

318 mOsm/L -Average osmolarity of patients with abnormal osmolarity (≥308 mOsm/L) or inter-eye difference (≥8 mOsm/L)
297 mOsm/L- Average osmolarity of patients with normal osmolarity (≤308 mOsm/L) or inter-eye difference (≤8 mOsm/L)

Precise and predictive results at the point-of-care

More precise than other universally accepted point-of-care tests such as cholesterol and glucose

Precise and predictive results at the point-of-care

More precise than other universally accepted point-of-care tests such as cholesterol and glucose

Variability-if-the-Hallmark-of-the-Disease

The Science

TearLab is predictive.
TearLab has a positive predictive value of 89%
Positive predictive value is the probability that subjects with a positive test truly have the disease
Variability is the hallmark of the disease

Utility

Fifty patients with DED-like symptoms with normal osmolarity were found to have alternate primary diagnosis.¹

Diagnose

Test both eye to uncover abnormal osmolarity and determine severity.

Abnormal osmolarity occurs when:
- An elevated reading, >300 mOsm/L, indicating loss of homeostasis.²
OR
- When the inter-eye difference is >8 mOsm/L, indicating instability of the tear film.²