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.
You can have LASIK after cataract surgery in most cases, but it is important that the eye is well healed from the cataract procedure, that it was done with a small incision (phaco) and that an all laser approach is used since the eye pressure can be increased more with a microkeratome than with a femtosecond method.