What is the role of tonometry in ophthalmology?

Tonometry plays a crucial role in ophthalmology as it is primarily used for assessing intraocular pressure (IOP). Elevated IOP is a significant risk factor for glaucoma, a condition that can lead to optic nerve damage and vision loss if left untreated. By measuring the pressure inside the eye, tonometry helps in diagnosing glaucoma early, monitoring the effectiveness of treatment, and determining the risk of developing the disease in individuals, especially those with other risk factors.

This measurement is vital as it provides essential information about the health of the eye and is typically part of a comprehensive eye examination. By understanding and interpreting IOP levels, healthcare professionals can make informed decisions regarding further diagnostic testing or treatment options for the patient.