CH 7 Opthalmic Dispensing

• Purpose of pad-angling pliers

  Change the angle of the nosepads
• Purupose of nylon-jawed pliers

  Bends plastic and metal without marring the finish
• Purpose of Wide-Jawed Hinge Anglingpliers

  Change the pantoscopic angle without placing stress on solder joints
• Purpose of Round-flat jawedpliers

  Use for guard arm and endpiece bends
• Purpose of Needle-nosepliers

  Use to place tiny screws in hard-to reach places
• Name the three nosepad angles that correspond to the slope of the nose.

  Frontal Angle

  Vertical Angle

  Splay Angle
• What is the procedure used for adding a mastoid bend to a temple?

  Heat the temple behind the bend and make a depression in it with your thumb between the bend and temple end.
• What are three ways that will aid in the best cosmetic appearance of a lens?

  Use of an anti-reflective coating

  Choosing a round lens shape

  Centering the eye in the center of the frame
• What type of nosepad is the best choice for an elderly patient?

  Silicone
• What are some physical attributes of a child that can make frame fitting a challenge?

  Longer eyelashes

  Underdeveloped nose bridge

  Head is more round

  Eyes are closer set
• why should the width of the frame endpiece to endpiece be approximately equal to the width of the facial bone structure just above the cheek bones.

  to keep stress off hinges and endpieces
• Why should longer faces have frames with longer vertical depth and shorter faces have frames with shorter vertical depth

  To keep the eyewire from touching brow or cheek
• Why should the bridge of the frame rest flat on the sides of the nose, evenly distributing the weight of the frame.

  To reduce red marks and broken skin
• One of the most important care tips for spectacles is that

  commercials cleaner should not be used if they contain alcohol
• The bone behind the ear that the temple should be adjusted around is the

  mastoid bone
• How should a 45 degree bend at the point on the temple that coincides with the top of the ear be bent

  should be bent using your hands
• When viewing from the side of the frame, with the bottoms of the pads angling toward the frame front, you are evaluating

  the vertical angle
• The frame hinge must be angled down to add approximately

  7-12 degrees of pantoscopic tilt
• What is the last step in standard alignment

  Fold the frame to see if the temples fold evenly across the front
• What is the first step in standard alignment

  Check if the eyewire is rolled
• A general guideline for fitting a frame properly when the patient's face is considered long

  Fit with a frame that has greater vertical depth
• What is the angle that the frame front makes when the temple is viewed from the side

  Pantoscopic tilt
• To check for X-ing of the bridge where must you view the frame from 


  The sides and the top
• The temples pressing into the sides of the head can cause what?

  The frame to be pushed down toward the nose
• Why should the temple extend 40mm behind the top of the ear and follow the contour of the face

  To stabilize the frame by touch not pressure