The short answer: Most loose glasses come from one of three things: a loose hinge screw, temple arms bent too wide, or worn nose pads. Tighten the tiny hinge screw with an eyeglasses screwdriver. Bend metal temples in slightly behind the ears. Warm acetate arms before you adjust them. Swap flattened nose pads. Each fix takes minutes and no special skill.
1. Tighten the hinge screw
A loose hinge is the most common cause and the easiest fix. Use an eyeglasses screwdriver, the tiny flat-head from a repair kit. Hold the temple steady and turn the screw clockwise until it is snug, not forced. If the screw keeps backing out, add a dab of clear nail polish or a drop of thread locker to the threads, let it set, and it will hold.
2. Adjust the temple width
If the arms sit too wide, the frame slides forward. Metal temples bend by hand: press the section that curves behind the ear inward a few degrees, one side at a time, and test the fit. Acetate arms need heat first. Warm the bend area with a hair dryer for 20 to 30 seconds until the plastic flexes, adjust gently, then hold it in place as it cools. Never force cold acetate, because it snaps. Our guide on adjusting acetate frames at home covers this in detail.
3. Replace or add nose pads
On metal frames, flattened or hardened nose pads let the glasses slip. Swap them for fresh silicone pads, which grip better and cushion the bridge. On acetate frames with no pad arms, stick-on silicone pads add grip. See silicone vs titanium nose pads for which to choose.
When to see an optician
Some jobs are not for the kitchen table. Spring hinges and titanium frames resist home adjustment and can break if you force them, so leave those to a shop. See what spring hinges are. A stripped screw hole, a cracked hinge, or a bent frame that will not stay straight also needs professional tools. Most opticians adjust a fit for free, even on frames bought elsewhere.
From our test bench. We loosen frames on purpose and time each home fix. The hinge screw took under a minute and solved most of the slide. The width bend fixed the rest, as long as we warmed acetate first. The one arm we rushed cold cracked at the bend. Heat and patience are the whole trick with plastic frames.
FAQ
How do you tighten glasses that keep slipping?
Start with the hinge screw and turn it snug with an eyeglasses screwdriver. Then bend the temple arms in slightly behind the ears, warming acetate first. Replace worn nose pads if the frame has them.
Can you tighten glasses without a screwdriver?
For the screw, no, you need a small eyeglasses screwdriver, sold cheaply in kits. You can still improve the fit by adjusting the temple width and swapping nose pads by hand.
Should I adjust titanium or spring-hinge glasses at home?
Better not. Titanium and spring hinges resist bending and can break under force. Take those to an optician, who can adjust them safely with the right tools.
Part of The Eyewear Care Manual · Related: adjust acetate frames at home · Shop nose pads · Last updated: August 5, 2026
