What is the primary purpose of perimetry testing?

The primary purpose of perimetry testing is to detect eye diseases such as glaucoma. Perimetry, also known as visual field testing, assesses the entire peripheral vision and helps identify areas where vision may be lost or impaired. This is crucial for diagnosing conditions like glaucoma, which can lead to irreversible vision loss if not detected and managed early. By mapping a patient’s visual field, healthcare providers can determine if there is any vision loss and how it correlates with potential eye diseases, facilitating timely intervention and treatment.

The other options relate to different types of testing in distinct areas of healthcare. Measuring auditory thresholds is associated with audiometry for assessing hearing capabilities, evaluating tympanic membrane movement pertains to otoscopy or tympanometry for ear health, and skin reactions to allergens are checked through allergy testing. Each of these has its specific purpose and does not relate to the goals of perimetry testing in assessing vision and diagnosing eye conditions.