Complex sentence: Contrary to this belief these pre-adult hamadryads do have eyes, however, eyes with remarkable visual acuity, set inside the upper roof of the jaw, spaced apart for binocular vision.
Split into simpler sentences: Contrary to this belief these pre-adult hamadryads do in fact have eyes. Eyes with remarkable visual acuity, set inside the upper roof of the jaw and spaced apart for binocular vision.