Eye check is a good idea especially for ladies at that age when things are changing.
As a hitting coach when this happens I go back to basics! Slow Motion Tee work (form), Stop at contact, while hitting off tee, Small ball hitting (golf balls whiffle type) , Bean hitting (navy beans best) ........ One drill I "go to" to work on this is (and at this age).... Eyes closed, Hit ball off tee. (gets them to focus on there swing, contact with the ball, and confidence) ...( "If you can hit it with your eyes closed just imagine how good you'll be with them open!")
Give them a try! Hope it all works out !! Been there done that! Very frustrating, but they will come out of it. Don't put the pressure on hitting it far just on making contact in game.
Remember 3 out of 10 is successful!!