The binocular makers have been working with this for ages so if you wear glasses but also want to use binoculars, not to worry. Many binoculars have either a rubber piece that folds up at the eye piece or the barrel of the eye piece rotates up, giving your eye distance from the glass of the eye piece itself.
The important piece of the puzzle to keep constant is the distance from your eyes to the eye pieces of the binoculars. So, when you select your binoculars, be sure to wear the same glasses that you would wear when you plan to use the binoculars. This will help you make sure that everything fits comfortably.
When checking the specs of the binoculars, check the “eye relief factor”. With wearing glasses, you want to have a long eye relief factor (e.g. 15-23 millimeters). If you have a short eye relief factor (e.g. a few millimeters), when wearing glasses, you will feel like you’re looking through a tunnel and this can give you eye strain and will reduce your field of view.