Eyeglass prescriptions are measured in this unit.
What is a diopter?
The coating used to filter out horizontal light waves, improving visual clarity and reduces eye strain.
What are polarized lenses?
This machine is used to take the pupillary distance.
What is a pupillometer?
This measurement
What is the eye size? (or "A" measurement)
The contact lens ordering platform used to order RGP lenses.
An adjustment for a patient who's complaining they see the line in their bifocal when looking straight ahead.
What is lower the frame on the face?
1. flatten the nosepads
2. raise the temples
This indicates the amount of lens power, measured in diopters (D), prescribed to correct nearsightedness or farsightedness
What is the Sphere?
These are the only Transitions colors available for a bifocal or trifocal.
What are gray and brown?
The type of multifocal that includes distance, intermediate, and reading Rx and has two lines in the lens.
What are trifocals?
This type of frame should not be heated up to make adjustments.
What is metal frames?
What is Dr. Contact lens?
An appropriate adjustment for a person complaining that their vision is blurry at near in their progressives.
What is raise the frame on the face?
1. narrow the nosepads
2. lower the temples
The average range for this component on a RX is +1.00 to +3.00 D.
What is the reading or add power?
This lens material has better optical clarity and scratch resistance than polycarbonate, and is often used for safety lenses.
What is trivex?
This lens has levels 1, 2, 3, 4 and is used for computer fatigue.
What is Eyezen?
These frames typically don't have adjustable nose pads
What are acetate (or zyl, plastic) frames?
True or false: A contact lens prescription should match a glasses prescription.
False. They are often different. Contact lens manufacturers do not make contacts with all the same parameters as glasses.
The adjustment needed when a patient's frame is crooked and too high on the right side.
What is raise the right temple?
This is an example of what conversion
-1.50 +0.50 x 90
-1.00 -0.50 x 180
What is transposition (from plus cylinder used in ophthalmology to minus cylinder used in optometry)?
The type of Transitions that will darken behind a windshield.
What is Xtra Active Transitions?
The measurement for this type of lens is taken at the bottom of the patient's pupil.
What is a trifocal?
The part of the frame that extends from the hinges to the ear piece, holding your frames on your face.
What are the temples?
A patient wears Dailies Total 1 Multifocal lenses. This is the number of lenses that typically come in a box.
What is 90?
An adjustment for a frame the keeps falling off a patient's face.
What is
1. bend the earpieces?
2. tighten any loose screws?
3. increase face form?
This occurs when an irregularly shaped cornea or lens prevents light from focusing properly on the retina.
What is an astigmatism?
This type of lens material is ideal for patient's with prescription powers of +/-7.00D.
When a patient has one eye significantly misaligned with the other, this is the method for measuring a PD.
The three measurements needed to confirm frame size.
What are eye size, bridge size (DBL), and temple length?
A patient would like to order their Air Optix lenses. What ordering platform do you invite them to?
What is Marlo?
This is always needed before remaking a lens.
What is Dr. Smiths signature?