祖父の左目には小さな目星ができている。
My grandfather has a small white spot in his left eye.
目星ができて視界がかすむようになった。
A white spot formed on my eye and my vision became blurry.
医者は目星の原因を角膜の傷だと説明した。
The doctor explained that the white spot on the eye was caused by a scratch on the cornea.