The importance of correctly fitting spectacles is important and certainly, whilst a key component, goes beyond just the idea of comfort. Ensuring the correct fitting of spectacles involves assessing not only the use of the glasses but also the way in which the fit to your face.
Different daily activities require different ranges of movement and thus fields of vision. For example, driving requires greater movement than reading and near and far activities also places different demands on the spectacle wearer. When understanding what constitutes a good fit for a pair of spectacles it is important to consider the following:
Nose fit is one of the most important factors within the overall fit of a pair of spectacles. It is important that the frames have a comfortable fit on your nose. Too much space means that they will slide out of place, thus not working correctly. Likewise, if the bridge is too narrow it can be uncomfortable. Examples of the nose fit not being correct could include:
- Glasses slipping down your nose
- Red marks and indentation
- Eyelashes touching your lenses
Proper fitting frames should not slide down when you lower your head or move from side to side; doubly important in activities which require greater movement. If you move your head vigorously and the glasses slide down then this is an indicator that the fit is not right. Correctly fitting frames out to stay in place whilst not being too tight or painful around the back of your ears and on the bridge of your nose.
The pressure that the frame exerts on the ears, temples and nose reflects how well it fits. A correctly fitting frame ought to feel fitted yet not loose thus preventing discomfort and allowing the lens to perform to its maximum efficacy