What do i do ...?? i am like scared if i have an diesaeas or blindness?

i keep on see stars around my eyes ..... but i no im not crazy.. i am scared tht i have an diesease or sumtin like that... i am also scred if i can get blindd by this. IF this helps i do wear gles and most of the time when i see the stars are wen my gles are off. but sometimes when my gles are on then they are a liltle... but plz help me . tell me what u think this is ... oh yea my eye sight id 20/24 and 20/23