Which instrument is utilized to examine the ear?

The instrument designed specifically for examining the ear is the otoscope. This medical device allows healthcare professionals to visualize the outer ear canal and the eardrum to assess for any abnormalities, infections, or blockages. The otoscope features a light and a magnifying lens, enabling clear observation of the structures within the ear.

Other instruments listed have distinct purposes that do not relate to ear examinations. For example, a sphygmomanometer is used for measuring blood pressure, while a Snellen chart is employed to test visual acuity, and a sigmoidoscope is utilized for examining the sigmoid colon. Understanding the specific functions of these tools highlights the specialized nature of medical instruments and their roles in diagnostics and patient care.