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BIO Fitting Contact Lenses with a Keratometer When a
Chapter 27, Problem 90GP(choose chapter or problem)
Problem 90GP
BIO Fitting Contact Lenses with a Keratometer When a patient is being fitted with contact lenses, the curva true of the patient’s cornea is measured with an instrument known as a keratometer. A lighted object is held near the eye, and the keratometer measures the magnification of the image formed by reflection from the front of the cornea. If an object is held 10.0 cm in front of a patient’s eye, and the reflected image is magnified by a factor of 0.035, what is the radius of curvature of the patient’s cornea?
Questions & Answers
QUESTION:
Problem 90GP
BIO Fitting Contact Lenses with a Keratometer When a patient is being fitted with contact lenses, the curva true of the patient’s cornea is measured with an instrument known as a keratometer. A lighted object is held near the eye, and the keratometer measures the magnification of the image formed by reflection from the front of the cornea. If an object is held 10.0 cm in front of a patient’s eye, and the reflected image is magnified by a factor of 0.035, what is the radius of curvature of the patient’s cornea?
ANSWER:
Step 1 of 4
Here we need to find the radius of curvature of the patient's cornea.
Given data,
Object distance from the eye,
Magnification,
To find,
Radius of curvature,