Though protective eyewear can give you slight white circles around your eyes, this is much better than the consequences involved if you don't wear the eyewear. The lights in a tanning bed are damaging to the retina in your eyes. Never stay in a bed over twenty minutes. If it is a ten minute bed, don't stay in more than ten minutes. You MUST follow the guidelines set forth by the owner's manual.
Tanning beds have a time limit for a reason.
If you stay inside too long, it can cause severe damage, both short term and long term. It can 'cook' your internal organs and cause irrepairable damage and in some cases death. If you stay in a tanning bed too long on a regular basis, your skin suffers the consequences. It can become wrinkled and leathery. You may even have problems with extreme dryness or other skin disorders.