Certified Ophthalmic Assistant Practice Exam

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Study for the Certified Ophthalmic Assistant Exam. Access multiple choice questions that reflect actual exam content and receive hints and explanations for each question. Prepare effectively and embark on your path to certification!

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Intraocular pressure is measured with what instrument?

Ophthalmoscope
Retinoscope
Tonometer
Perimeter

The correct answer is: Tonometer

The correct instrument for measuring intraocular pressure is the tonometer. Tonometers are specifically designed to evaluate the pressure inside the eye, which is critical for diagnosing conditions such as glaucoma. They operate by assessing the eye's resistance to an applied force, allowing for an accurate measurement of intraocular pressure. An ophthalmoscope is primarily used for examining the interior of the eye, particularly the retina and optic nerve, but it does not measure intraocular pressure. A retinoscope is used to evaluate refractive errors by shining light into the eye and observing the reflection, which helps determine what type of lenses may be needed for vision correction. A perimeter, on the other hand, is used to test peripheral vision by mapping the visual field, rather than measuring pressure within the eye.