Cpo Terms

Front 1

Cornea retains water.
Swells.
Due to lack of water.

Back 1

Edema

Front 2

Additional Curves on back surface of lens that surround optical zone
Helps tailor contact lens t individual patient.
Cornea steeper in center.
Flattens toward periphery.

Back 2

Peripheral Curves

Front 3

Size of lens when measured from edge to edge at widest point.

Back 3

Overall Diameter

Front 4

Rigid Lens OAD

Back 4

8.5-9.5 mm

Front 5

Hydrogel lens

Back 5

11.0-15.0 mm

Front 6

Way frame front follows contour of face.
Protrudes slightly at nose
Farther back at temples

Back 6

Face Form

Front 7

how do you assess face form?

Back 7

take frame with temples extended.
Place ruler against back of frame front...from outside edge of one eyewire to outside edge of other eyewire.
ruler is straight.
Amount of curve to frame will show amount of face form.

Front 8

Bridge of frame sits substantially forward of hinge on frame front.

Back 8

High degree of face form on glasses.

Front 9

Picture representation of pressure points between eyeglass frame and patient head.
Equalize pressure over BRIDGE
and Widest Part of head on each side.

Back 9

Fitting Triangle

Front 10

Frame Selection

Back 10

1. Good Frame Fit=width of frame equal to width of patients face.
2. Longer face=greater vertical depth of frame.
Shorter Face=Smaller vertical depth.
3. Bridge should rest flat on sides of nose so that it distributes frame weight.
4. Temples extend over ear and beyond to balance weight of frame front
5. Shape to fit contour of head.
Minimize round face by fitting with frame of opposite shape.
6. Balance features of face.
7. Upper eyewire should contour to shape of eyebrows.

Front 11

Give frame dimension in consistent manner, regardless of frame shape

Back 11

Boxing System.

Front 12

Widest horizontal dimension
Measured tips of eyewires

Back 12

"A" Eyesize

Front 13

Most vertical dimensions of lens opening.
Measured from tips of eyewire grooves

Back 13

"B" Eyesize

Front 14

Largest dimension thru lens
Determines what lens blanks to use

Back 14

ED or Effective Diameter

Front 15

Bridge Size
distance seperating two lens.
Measured where distance between lens is smallest.

Back 15

DBL or Distance Between Lens

Front 16

size of CL when measured from edge to edge at widest point

Back 16

OAD

Front 17

State Licensed
Independant
Examines, diagnoses, treats, manages disease and disorders of visual system, eye and associated structure

Back 17

OPTOMETRIST
O.D.

Front 18

Physician who specializes in medical and surgical care of eye

Back 18

OPHTHALMOLOGIST
D.O.

Front 19

works under direct supervision of OD

Back 19

PARAOPTOMETRIC

Front 20

Works with ophthalmologist and patients

Back 20

OPHTHALMIC MEDICAL PERSONNEL
OMD

Front 21

DISPENSES EYE GLASSES UPON PRESCRIPTION
MAKES LENSES

Back 21

OPTICIAN