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.
Many eyes can be rehabilitated before surgery, say surgeons, but you still have to be vigilant for intractable cases. Surgeons say that dry-eye disease after LASIK is one of the most miserable complications patients can experience, and managing it often involves a lot of patient stress, hand-holding, chair time and sheer recovery time.