Comparison of Intraocular Pressure Measurement With the Novel TonoVera Device With Other Commonly Used Devices

Inclusion Criteria:

* Ability to provide signed and dated informed consent form. Patients willing to comply with all study procedures and be available for the duration of the study.

Male or female patients aged 18 to 99 Patients in good general health as evidenced by ability to come to their appointment on day of study.

Exclusion Criteria:

* Patients age less than 18 years Patients unable or unwilling to provide informed consent to participate in the study Patients for which an accurate tonometry reading cannot be performed. This may include those with blepharospasm (lid squeezers), nystagmus, extensive corneal pathology, or contact lens wearers who cannot remove their contact lens.Patients with significant scleral thinning Patients with a known allergy to proparacaine or fluorescein as these are used to anesthetize and allow measurement respectively of the eye when used with the Goldmann tonometer.