Complete Solutions
What federal agency is in charge of regulating safety practices in the workplace? -
ANSWER-OSHA
What federal agency is in charge of protecting human health and the environment? -
ANSWER-EPA
what is the name of the document that is designed to provide both workers and
emergency personnel with the proper procedures for handling or working with a
particular substance? - ANSWER-SDS
Is an SDS required for all hazardous materials in an optical environment even if it is a
very small office? - ANSWER-Yes
Which is a proper method of disposing of optical laboratory waste? - ANSWER-Check
with your local authorities regarding how to dispose of each waste product in your office
and keep it documented.
The term lensometer has become the generic term for the instrument that is used to
neutralize lenses. What is the correct term for the instrument? - ANSWER-Focimeter,
Vertometer
Rather than actually reading the power of lenses, what are we actually doing? -
ANSWER-We are actually neutralizing the power of lenses by measuring the focal
length of the lens. The instrument converts the focal length to dioptric power.
When viewing through they eyepiece, as you move a lens or glasses to the right, and
the image viewed also moves to the right, what type of lens would you be neutralizing? -
ANSWER-Minus powered lens
When you are going to neutralize a pair of eyewear in a lensometer, what should you do
first? - ANSWER-Focus the eyepiece. With the instrument off, place a white piece of
paper on the lens stop. Rotate the eyepiece quite a bit to the left and then slowly rotate
it to the right. When the mires are clear, stop. Rotating it back and forth will stimulate
accommodation, so do it slowly and simply stop when clear.
ANSI Z80.1 RX ophthalmic lenses - ANSWER--lenses have to be within tolerance for
both sphere and cylinder power.
SV and MF toleration - ANSWER-if between 6.50 = sphere(.13)/ 0-2 cyl(.13)/ 2-4.50
cyl(.15)/ over 4.5 cyl(4%)