What instrument is commonly used to measure intraocular pressure?

What instrument is commonly used to measure intraocular pressure?

• A. Ophthalmoscope
• B. Refraction meter
• C. Tonometer
• D. Visual field analyzer

Answer: (C)

The tonometer is the correct instrument for measuring intraocular pressure (IOP), which is a critical aspect of eye health. IOP measurement is essential in diagnosing and monitoring conditions such as glaucoma, where elevated pressure can lead to vision loss. The tonometer works by applying a controlled force to the eye and measuring how the eye responds, providing an accurate assessment of the pressure within the eye. In contrast, an ophthalmoscope is primarily used for examining the interior structures of the eye, including the retina and optic nerve, rather than measuring pressure. A refraction meter is used to assess a person's refractive error and determine the prescription for corrective lenses, but it does not involve measuring intraocular pressure. A visual field analyzer, on the other hand, evaluates the visual field and detects peripheral vision loss, but it also does not pertain to IOP measurement. Therefore, the tonometer is uniquely suited to the task of assessing intraocular pressure, making it the appropriate choice.

The tonometer is the correct instrument for measuring intraocular pressure (IOP), which is a critical aspect of eye health. IOP measurement is essential in diagnosing and monitoring conditions such as glaucoma, where elevated pressure can lead to vision loss. The tonometer works by applying a controlled force to the eye and measuring how the eye responds, providing an accurate assessment of the pressure within the eye.

In contrast, an ophthalmoscope is primarily used for examining the interior structures of the eye, including the retina and optic nerve, rather than measuring pressure. A refraction meter is used to assess a person's refractive error and determine the prescription for corrective lenses, but it does not involve measuring intraocular pressure. A visual field analyzer, on the other hand, evaluates the visual field and detects peripheral vision loss, but it also does not pertain to IOP measurement. Therefore, the tonometer is uniquely suited to the task of assessing intraocular pressure, making it the appropriate choice.