What is the term for a pressure reading in the eye?

Tonometry is the correct term for measuring intraocular pressure within the eye, which is essential for diagnosing conditions such as glaucoma. This procedure assesses the fluid pressure in the eye, helping to detect abnormalities that could lead to vision loss or other ocular complications. By utilizing various tonometric devices, healthcare professionals can obtain readings that indicate how well the eye is maintaining appropriate pressure, allowing for timely intervention if necessary.

Ophthalmoscopy, on the other hand, is a technique used to visualize the interior of the eye, including the retina and optic nerve, rather than measuring pressure. Perimetry refers to the visual field testing that assesses a person's vision in their peripheral field, while refraction is the process of determining the appropriate corrective lenses for vision correction. Each of these diagnostic tools serves unique purposes in eye care, but only tonometry specifically pertains to pressure readings within the eye.