Certified Ophthalmic Technician (COT) Practice Test

Question: 1 / 400

What unit is used to calibrate prisms in ophthalmology?

Diopters

Prisms in ophthalmology are calibrated using diopters, which quantify the degree of deviation that light is bent when passing through a prism. A diopter is defined as the reciprocal of the focal length (in meters), and for prisms, it measures the angle of deviation produced by the prism. Specifically, one prism diopter results in a one-centimeter displacement of light at a distance of one meter from the prism.

While millimeters, centimeters, and radians may be relevant in various aspects of measurements in ophthalmology, they do not provide the specific and standardized measurement for the optical power and deviation created by a prism. Diopters, being directly related to the ability to refract light, serve as the universal unit of measurement in this context, allowing for consistent and accurate prism calibration for various clinical applications, including strabismus evaluation and management.

Get further explanation with Examzify DeepDiveBeta

Millimeters

Centimeters

Radians

Next Question

Report this question

Download Certified Ophthalmic Technician (COT) Practice Test PDF Study Guide
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy