Optician Questions and Answers
Opposite +1.25 -1.75 - answer subtract smaller from larger use sign of larger power
Like + 1.75 + 1.75 / -1.00 -1.00 - answer add no matter the power
Bifocul - answer Sphere plus add power
Sphere - answer skinny lines
Cylinder - answer chubby lines
OD - answer right eye
OS - answer Left eye
OU - answer both eyes
Prism BI - answer base in
NVO - answer near vision only
3 types of lens mounting - answer bevel-bezel, semi rimless & 3 pc
When considering fit for frame use - answer width, nose & temple length
common screw for eyewire - answer 1.4
A coated screw will prevent - answer loosening
lenses foe safety glasses - answer can be any material
sport goggles for base, basket & raquetball - answer are not easily adjusted
If a RX has cylinder power it must have - answer axis
The distance from the back of lens to front of cornea - answer vertex depth
This note is used to prevent errors when filling an rx or ordering a job - answer unlike
signs ok
Frames are measured using the boxing system points - answer a, b, dbl, ed
Opposite +1.25 -1.75 - answer subtract smaller from larger use sign of larger power
Like + 1.75 + 1.75 / -1.00 -1.00 - answer add no matter the power
Bifocul - answer Sphere plus add power
Sphere - answer skinny lines
Cylinder - answer chubby lines
OD - answer right eye
OS - answer Left eye
OU - answer both eyes
Prism BI - answer base in
NVO - answer near vision only
3 types of lens mounting - answer bevel-bezel, semi rimless & 3 pc
When considering fit for frame use - answer width, nose & temple length
common screw for eyewire - answer 1.4
A coated screw will prevent - answer loosening
lenses foe safety glasses - answer can be any material
sport goggles for base, basket & raquetball - answer are not easily adjusted
If a RX has cylinder power it must have - answer axis
The distance from the back of lens to front of cornea - answer vertex depth
This note is used to prevent errors when filling an rx or ordering a job - answer unlike
signs ok
Frames are measured using the boxing system points - answer a, b, dbl, ed
