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 Eye Surgery - Cost, How it Works, Risks & Recovery. LASIK Eye Surgery Explained. LASIK eye surgery is the most common elective procedure and is performed to correct nearsightedness, farsightedness and astigmatism. In most cases, LASIK is painless and completed within several minutes per eye.