4 ways to take care of your glasses:
Clean your glasses and frame periodically – you can send it to a professional eye care outfit for this service
Occasional maintenance and tightening will keep it strong
Keep your frame in its case, to avoid scratching it, sitting on it or stepping on it
Don’t rest your frame on its glass surface to avoid scratching the lens surface.
Finally, a good frame could last for up to three years with proper care; after this time you can change your frame and change your look but not without consultation with your Optometrist to update/assess your prescription.