Nose Pad Adjustments: Spread, Angle, Height, and Replacement

The Role of Nose Pads

Nose pads are the primary contact points between the frame and the nose. They bear most of the frame's weight and control the vertical and horizontal position of the glasses on the face. Properly adjusted nose pads mean the difference between all-day comfort and persistent irritation.

Understanding pad arm adjustments is a fundamental dispensing skill. Unlike fixed-bridge frames where the fit is largely determined by the frame itself, adjustable nose pads give the optician precise control over frame position and weight distribution.

Pad Arm Spread

Pad spread is the distance between the inner edges of the two nose pads. This is the most commonly adjusted parameter because it directly controls how the frame sits on the nose.

• Narrowing the spread (bringing pads closer together): Raises the frame on the face and works better for narrow noses. The pads grip the nose higher where it is typically narrower.
• Widening the spread (moving pads farther apart): Lowers the frame on the face and accommodates wider noses. The pads rest lower where the nose is broader.

The correct spread allows the pads to sit on the flattest, most comfortable part of the nose without sliding. Each pad should make full contact with the nose surface.

Pad Angle (Splay)

The pad angle (or splay) determines how the pad surface sits against the side of the nose. The goal is full-surface contact: the entire flat face of the pad should rest evenly against the nose without tilting.

To check pad angle:

1. Have the patient wear the frame and look at the pads from below
2. Each pad should sit flush against the nose with no visible gap at the top or bottom edge
3. If only the front edge contacts the nose, the pad is toed out too much
4. If only the back edge contacts, the pad is toed in too much

Incorrect pad angle is the most common cause of nose pad pressure marks. When only a portion of the pad contacts the nose, all the frame's weight concentrates on that small area, creating indentations and redness.

Pad Height (Vertical Position)

Adjusting the vertical position of the pads moves the entire frame up or down on the face. This is done by bending the pad arm at its base where it attaches to the frame:

• Bending the pad arm inward (toward the lens): Raises the pad, which lowers the frame
• Bending the pad arm outward (away from the lens): Lowers the pad, which raises the frame

Pad height adjustments are particularly important for:

• Correcting optical center height when the frame sits too high or low
• Ensuring progressive fitting crosses align with the pupil center
• Compensating for asymmetric nose shapes by adjusting each side independently

Adjustment Technique

Use pad arm adjusting pliers (also called pad adjusting pliers or flat-nose pliers with fine tips) for all nose pad adjustments:

1. Grip the pad arm firmly at the point where you want to create the bend
2. Apply slow, controlled pressure in the desired direction
3. Make small adjustments and check the fit on the patient frequently
4. Avoid bending the pad arm back and forth repeatedly, which fatigues the metal and can cause it to break

Pad Replacement

Nose pads should be replaced when they become yellowed, hardened, cracked, or lose their grip. Replacement is straightforward for most frames:

1. Identify the mounting style: push-on (friction fit), screw mount, or clip-on
2. Remove the old pad using the appropriate technique for its mount type
3. Select a replacement pad of the same mounting style and similar size
4. Install the new pad and verify it sits correctly on the pad arm

Silicone vs. PVC Pads

Pad Shapes and Sizes

Nose pads come in several shapes, each suited to different nose anatomies:

• Oval: The most common shape, works well for most nose types
• Round: Good for narrow noses where precise placement matters
• D-shaped: Flat edge at the bottom prevents sliding on steep nose angles
• Teardrop: Wider at the bottom for additional support on flat or low bridges

Larger pads distribute weight over more area, reducing pressure per square millimeter. For heavy frames or patients who complain of nose pad marks, switching to a larger pad size can resolve the issue without other adjustments.

Key Takeaways

• Pad spread controls how wide the frame sits on the nose and affects frame height
• Pad angle must allow full-surface contact to prevent pressure marks
• Pad height adjustments move the frame up or down, affecting optical center position
• Use pad arm pliers, never grip the pad itself during adjustments
• Silicone pads offer better comfort and grip than PVC pads
• Replace pads when yellowed, hardened, or cracked
• Larger pad sizes reduce concentrated pressure for heavy frames