The human diencephalon is composed of several regions. The thalamus which relays sensory information to the cerebrum, processes visual and auditory stimuli, and generates some emotions, among other functions.he human diencephalon is composed of several regions. The thalamus which relays sensory information to the cerebrum, processes visual and auditory stimuli, and generates some emotions, among other functions.
The LASIK surgery is performed by an ophthalmologist who uses a laser or microkeratome to reshape the eye's cornea in order to improve visual acuity. For most patients, LASIK provides a permanent alternative to eyeglasses or contact lenses.
LASIK is shorthand for laser-assisted in situ keratomileusis. Before you sign up for this surgery, here are a few things to think about: 1  LASIK is surgery to a very delicate part of your eye, and cannot be reversed. 2  As with any surgery, there are risks and possible complications.3  Millions of people have had LASIK, many very successfully, but itâs not for everyone.ASIK is shorthand for laser-assisted in situ keratomileusis. Before you sign up for this surgery, here are a few things to think about: 1  LASIK is surgery to a very delicate part of your eye, and cannot be reversed. 2  As with any surgery, there are risks and possible complications.