Ophthalmosaurus gave birth to its young in live births, not by laying of eggs.

The Ophthalmosaurus derives its name from its eyes; the largest proportional eyes known among sea creatures of the late Jurassic period.

Ophthalmosaurus was the only ichthyosaur in the middle Jurassic through to the Cretaceous period.

Ophthalmosaurus had large rings of eye bones which prevented damage from water pressure in the lower depths.