OPT 1430L Ophthalmic Lab II UNIT 1-2 Flashcards
Dry cutter blades can
Be resharpened
Checking the alignment of a marking device references
The center of the stamp to the alignment grid center
Lubricating lab equipment moving parts uses
Light Weight Oil
Dust should be removed from lab equipment in which area of the machine?
All areas
Maintenance for all lab equipment should be done
On a regular basis
Centration Device Blockers align blocks according to
Grid and block center and axis
Cleaning marking devices on lab equipment___________
Answer
Uses a cloth to remove excess ink
With lensometer power calibration the technician is last step is to check the power drum for PLANO in reference to
Clear and sharp mieres
On a lens blank, bifocal lens segment “inset” is referenced from the
Distance MRP
A layout blocker has which of the following?
A segment aligning guide
Layout blockers decenter right lenses “in”
To the right
When using a lens protractor, the lens is referenced:
Concave side up
Round lens segments are placed on axis by:
Lensometer marks
Flat top trifocal lenses are decentered horizontally and vertically in the same manner as:
Bifocal lenses
The intersection of the horizontal and vertical lines on a layout grid represent:
Frame GC
