What is the purpose of a tonometer?

The purpose of a tonometer is to measure intraocular pressure within the eye. This measurement is critical in diagnosing and monitoring conditions like glaucoma, which can lead to damage of the optic nerve and potential vision loss. By assessing the intraocular pressure, healthcare providers can make informed decisions regarding the management and treatment of eye diseases. Tonometers come in various types, including applanation tonometers and non-contact tonometers, each designed to provide accurate pressure readings necessary for proper eye care and intervention. Understanding this function is crucial for anyone involved in medical coding, as the data can inform coding for specific eye-related conditions and procedures.