Birdhouse began with a mission: to make our roads safer. Since then, we have been developing our patented device, the EyeAlyzer™. It is the first device of its kind, able to accurately detect impairment from any drug almost instantly using the same proven eye tests that police officers currently use in the field.

The EyeAlyzer™ conducts these eye tests in virtual reality while analyzing the results with the power of Artificial Intelligence. The device also produces court-admissible videos which can be analyzed by drug recognition experts. This is vastly superior to other approaches, since THC concentration and oral fluid, breath, blood, and urine are not correlated to impairment, and cannot accurately confirm recent marijuana or drug usage. Birdhouse's EyeAlyzer™ tests for multiple drugs at once by directly measuring impairment as opposed to estimating concentration levels.

The EyeAlyzer™

Artificial Intelligence makes the EyeAlyzer more accurate than current alternatives.
The EyeAlyzer administers the test and returns a result automatically, all within minutes.
Determines impairement without a mouth piece and without collecting breath, oral fluid, blood, or urine.
Collects court-admissable videos of the eyes, which can be interpreted by drug recognition experts.



The eyes are the greatest biomarkers in the human body and have proven to be the key neurobiological indicator of impairment, as observed abnormalities in ocular motility provide diagnostic clues about drug use. Many abnormal eye movements are distinctive and point to specific attributes related to impairment, making them extremely useful in systematic examination.

Eye movement patterns caused by cannabis that are a sign of impairment include:

  • Nystagmus
  • Lack of smooth eye pursuit
  • Lack of convergence
  • Rebound dilation