Technician Study Guide Quiz

The ____ indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness.

• Sphere

• Cylinder

• Axis

• Add

The second number in a prescription, this number indicates the lens power needed to correct astigmatism in your eyes.

• Sphere

• Cylinder

• Axis

• Add

True or False: The axis on the prescription indicates the orientation of astigmatism, measured in degrees from 1 to 180.

• True

• False

The term, "____" means that the correction for nearsightedness or farsightedness is "____," or equal in all meridians of the eye.

• Cylinder, Cylindrical

• Toric, Astigmatic

• Sphere, Spherical

• Myopic, Myopia

True or False: The add power is the added magnifying power applied to multifocal lenses to correct presbyopia.

• True

• False

When the lens of the eye becomes cloudy or hazy the patient could potentially have...

• Amblyopia

• Keratoconus

• Cataract

• Glaucoma

A progressive, irreversible degeneration of the optic nerve, typically caused by high eye pressures. Causes loss of peripheral vision.

• Amblyopia

• Cataract

• Limbus

• Glaucoma

Rx is the abbreviation for ____.

• Revolution

• Rigid Gas Permeable

• Prescription

• History

OD stands for ____.

• Oculus Desster or Right Eye Muscle

• Oculus Dexter or Right Eye

• Oculi Dextrus or Left Eye

• Ocular Distance or Left Eye

Which of the following means Both Eyes

• OD

• OS

• OT

• OU