Use care to avoid overheating and do not bend the rods too much.

Why do the rods become crooked?

Eyeglass temples can be twisted for a variety of reasons related to daily use, the environment or the material from which they are made. Here are the main reasons:

1. Improper Handling

• Remove the glasses with one hand-this can cause uneven pressure that deforms the temples.
• Bending or twisting: the habit of bending the rods when not wearing them can cause deformation over time.

2. Wear and Pressure

• Stowing glasses badly: leaving them in tight pockets, bags, or under heavy objects can lead to accidental bending.
• Repeated pressure: standing on hard surfaces or accidental bumps can affect the shape of the rods.

3. Material

• Cellulose acetate: is a thermoformable material, so it tends to deform under the effect of heat.
• Metal or softer plastics: less rigid materials may be more susceptible to bending over time.

4. Environmental Influences

• Heat: exposure to high heat sources (e.g., a car dashboard in the sun) can soften the material, causing deformation.
• Temperature changes: alternating heat and cold can weaken some plastics or composite materials.

5. Fit and Adaptation

• Not perfectly fitted to the face: rods that are too narrow or too wide can be subjected to uneven pressure when worn.
• Poorly executed adjustments: do-it-yourself or professional corrections done roughly can leave the rods in an unnatural position.

To prevent deformation, it is useful:

• Handle the glasses with both hands.
• Store glasses in a hard case when not in use.
• Avoid exposing them to intense heat.
• See an optician for adjustments or repairs.