Problem With Eyeglasses. Doc say this?

Doc,My Age is 14.I Had Myopic Astigmatism For 1.5 Years.Before 1.3 Years,I Go A Doc And He Checked Me Using Slit-Lamp And Some Other Instrument And Diagnosed Me With Myopic Astigmatism in BE.But, At That Time, The Ghosting Image And Astigmatic Blurry Vision Was Only Present in RE.The CYL Power Was Only Present in RE.After Wearing The Doc Prescribed Glasses,My Blurry Vision is Fully Reduced & Ghosting Image Was Also Redcued But Not Fully Gone.After 6-8 Months From Visiting The Doc,My LE Also Start Causing Ghosting Image & Astigmatic Blurry Vision.Then I Go The Same Doc After 4-6 Month & Then He Checked Me And Told That I've Got A CYL Power in My LE's Also.From Doubt,I Went A Other Doc The Day Before Yesterday & He Also Checked Me Using Slit-Lamp & Diagnosed The Same Myopic Astigmatism.He Prescribed Me Glasses Which Reduced Ghosting Image Reduced 80-90% But Not Fully. Vision is 6/6 in BE With Glass.When I Told This To Doc,He Says That The Remnant Ghosting is Normal. Why My Doc Say This?