eye problme

one year ago i took a glasses and put then on me for a half year i didn't have any problem then but now i do have. my eye dosen't see well. i can't see my friends in a distance i am student so i cant see the blackbord i dont know what to do ?

Dear Malkamo The only thing to do is to go for a check-up ophthalmologist(that's the eye doctor) as well as to the optometrist Dr. D. Gaton