What does perimetry mean?
Perimetry is a diagnostic technique used to assess the visual field, which is the entire area that can be seen with the eye fixed on a central point. This measurement is crucial for detecting and monitoring various eye and brain disorders, such as glaucoma, stroke, and tumors. By systematically evaluating the sensitivity of the retina to light in different areas of the visual field, perimetry provides valuable information about the functioning of the visual pathway. The test is typically performed using a perimeter, a device that presents visual stimuli at various points in the visual field. Perimetry is a useful tool for ophthalmologists and optometrists, allowing them to diagnose and monitor conditions that affect vision.
nounPerimetry is the systematic measurement of visual field function, used to diagnose and monitor various eye and brain disorders. It assesses the sensitivity of the retina to light in different areas of the visual field.
- Measurement of the visual field
- A diagnostic tool in ophthalmology
"The ophthalmologist used perimetry to evaluate the patient's visual field defects following the stroke."
"The perimetry test revealed a significant loss of peripheral vision in the patient's left eye."
"Perimetry is a crucial diagnostic tool for detecting glaucoma and other eye diseases."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of perimetry
The term 'perimetry' originates from the Greek words 'perimetros', meaning 'circumference', and the suffix '-metry', which denotes measurement. The word has been used in the context of visual field measurement since the late 19th century.
How perimetry is actually used
Formal or technical term, commonly used in medical and ophthalmological contexts.