What is the diameter of the Goldmann tonometry probe?

The Goldmann tonometry probe has a diameter of 3.06 mm. This measurement is significant because the Goldmann tonometer is a widely used instrument for measuring intraocular pressure (IOP) in a clinical setting. The specific diameter of the probe plays a crucial role in ensuring accurate measurements, as it comes into contact with the cornea during the tonometry procedure.

By using a probe of this size, the tonometer can exert a known pressure on the cornea, allowing for a reliable assessment of IOP based on the indentation that occurs. The 3.06 mm diameter is specifically designed to create a precise and standard relationship between the pressure applied and the resulting deformation of the cornea, which is essential for the validity of the tonometry readings.

Understanding the specifications of the tonometry probe helps eye care professionals to utilize the instrument effectively, ensuring that they collect accurate data for diagnosing and managing conditions such as glaucoma.