to determine what size frames you need. Visit an optometrist or a glasses store and ask them to measure your face. The optometrist or employee will accurately find the length you need for the lenses, nose bridge, and arms for your glasses in millimeters.  For example, your eyeglass measurement may look like 55-18-140, where 55 mm is the lens width, 18 mm is the bridge width, and 140 mm is the length of each arm. If you already have a pair of glasses that fit well, look for 3 numbers on one of the arms to find their size. Some apps for buying glasses may have a measurement tool that uses your phone camera estimate the perfect fit for you. Grips strips are rubber pieces wrapped around the frames that increase the amount of friction so they’re less likely to slip. Look for frames in your size that have rubber pieces on the end and try them on so you can see how they feel on your head.  If your frames are too tight, you may start to feel more uncomfortable the longer you wear them. You can buy grip strips to add onto frames if you can’t find a pair that already has strips on them. Many glasses have nose pads attached to moveable metal pieces so you can make adjustments on the go. Look for frames in your size that have adjustable nose pads at your local glasses store or online. If the nose pads are too loose and don’t grip your nose bridge well, then squeeze them closer together so they hold on your face better. If the frames you like don’t have adjustable nose pads, you may be able to stick on adhesive nose pads to help keep your glasses up.
حددي قياسات وجهك من أجل تحديد قياس الإطار المناسب لكِ. اشترِ نظارة ذات قطع تثبيت عند نهاية الذراع حتى تقلل احتمالية الانزلاق. جرّب النظارة ذات سنادات الأنف القابلة للضبط حتى تضيّقهما بنفسك.