Hi Evelyn! Thank you so much for your interest on our frame S9811K. For high prescriptions like -8.00, we would not recommend a wire frame as the frame may not be thick enough to hold the lenses. It may result to the lenses being highly-noticeable as the the edges will stick out of the rim. We'd strongly suggest you get a frame made of acetate or plastic as they are strong and are normally thick enough to hold high prescriptions. Please checkout these frames https://www.firmoo.com/z/kids-glasses.html?products_metal=p,mp,sg&page=1 .
For any additional concerns, please don't hesitate to call us at 1-855-487-6006 we are currently open between 6:00AM - 6:00PM Pacific time daily. You may also send us a chat and our Live Chat specialists are open 24/7 or email us at email@example.com and you will get a response within 24 hours during weekdays and 24-48 hours on weekends. All the best for you Evelyn!