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Eyeglass temple angle is the vertical angle at which the spectacle frame sits on the wearer's face. It is the angle created between the plane of the lens and the temple arm when the glasses are worn.
read more about eyeglass temple angle ...The function is two-fold. First, it makes sure the frame is parallel to the wearer's face for a comfortable, balanced fit. Second, it is needed for optical alignment, particularly with strong prescriptions or multifocal lenses.
The temple angle must match the pantoscopic tilt (the vertical angle of the lens). If the temple angle is too flat or too steep, the lens correction will be misaligned, forcing the eye to look through a distorted area, which causes strain.
Opticians adjust the temple angle by bending the hinge or the top of the temple arm, either inward or outward, to change the vertical alignment. This precise adjustment is crucial for people with unevenly set ears or high prescriptions.
The correct temple angle makes sure your backup frames sit straight and centered. This accurate alignment provides distortion-free vision when you temporarily switch from contacts, preventing visual strain.
No, adjusting the temple angle requires specialized pliers and knowledge to prevent snapping the frame front or damaging the hinge.
Yes, an incorrect angle can cause the temple arms to pull away from the head, reducing the grip and causing the frames to slip.
No, face-form is the horizontal curve of the frame. Temple angle is the vertical tilt.
If one side of your glasses sits higher than the other, the "temple angle" is uneven. This often happens if you remove glasses with one hand. This misalignment can cause "induced prism," leading to eye fatigue and blurred vision. See an optician for a bench alignment.
ABDO. Spectacle Frame Alignment and Repair (abdo.org.uk). 2024.
Review of Optometry. Troubleshooting Patient Complaints (reviewofoptometry.com). 2023.
The Vision Council. Ophthalmic Dispensing Standards (thevisioncouncil.org). 2024.
College of Optometrists. Verifying Spectacle Accuracy (college-optometrists.org). 2024.