Complex sentence: It does not adhere to the retina, except at the optic nerve disc and the ora serrata (where the retina ends anteriorly), at the Wieger-band, the dorsal side of the lens.
Split into simpler sentences: It does not adhere to the retina, except at the optic nerve disc. It is also connected to the ora serrata (where the retina ends anteriorly), at the Wieger-band, the dorsal side of the lens.