When you buy your next pair of spectacles, don't merely check whether the frame looks good on your face. Also check if it sits well.
One small but important detail is called pantoscopic tilt.
Look at yourself from the side while wearing your spectacles. Ideally, the frame should not sit perfectly vertical like a wall.
The bottom of the spectacle frame should usually be slightly closer to your cheeks than the top. This slight forward tilt is called pantoscopic tilt.
How much tilt is normal?
For most spectacle wearers, a pantoscopic tilt of approximately 8–12 degrees is commonly considered appropriate. The exact amount can vary depending on your face, frame, prescription and the type of lenses.
Why is it important?
Your spectacle lenses are designed to work best when you look through their optical centre or the viewing zone. If the frame sits at the wrong angle, the lens position in relation to your eyes can change.
This becomes particularly important if you have:
1. A high spectacle power
2. Progressive or multifocal lenses
3. A strong cylindrical power
4. Special occupational lenses
Too much or too little tilt can sometimes affect visual comfort and may contribute to blur, distortion or difficulty adapting to the glasses.
What can you check when buying spectacles?
Put on the frame and look at yourself from the side. Ask:
Is the frame sitting slightly tilted forward, with the lower rim a little closer to my face?
Also check whether:
*The frame is not touching your cheeks.
*Your eyelashes are not constantly touching the lenses.
*The frame is sitting comfortably on your nose.
*The lenses are positioned correctly in front of your eyes.
*The frame does not slide down when you look down.
Again, don't assume that a frame sitting straight is necessarily sitting correctly.
#myopia
Image from google
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