When using hand or power tools I know from personal experience that safety glasses as shown above can protect your eyes from being hit by flying objects such as nails, screws, wood, sawdust .
Safety goggles wrap right around the sides. However, if you live in a hot humid climate and your face perspires while using this type they may fog up.
If you wear prescription glasses purchase safety glasses or goggles that will not make your prescription glasses fog up. Test before parting with your hard earned cash.
When purchasing check to ensure that they meet your country’s standard for eye protection.
In the event of an eye injury seek medical assistance immediately.