Prescription glasses that are dirty, scratched or misaligned will not give you the best vision possible and may cause seeing problems. Scratches also can weaken your lenses' impact-resistance. To take care of your glasses:

• Clean the lenses twice a day. Use warm water and soap or detergent to remove oils and dirt from the lenses. An eyeglass cleaner is also OK. Dry with a soft, clean cloth.
   
• Never use silicone tissues on plastic lenses or wipe these lenses when dry.
   
• Wash the frames occasionally with soap and warm water.
   
• When not wearing your glasses, keep them in their case. If you lay them down for a minute or two, don't let the lenses touch anything.
   
• Put on and remove your glasses properly. Use both hands to grip the temples (side pieces) about midway and push gently over your ears. Use the same grip, raise the temples and slide the glasses forward to remove them. Even so, you'll need to have your glasses professionally readjusted periodically.
   
• Avoid letting other people put on your glasses. This could disturb the alignment.
   
• If you have trouble seeing even with clean, aligned glasses, you may need a prescription change or have an eye health problem in need of your optometrist's attention.

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