The average age for cataract surgery is approximately 73 to 75 years old. But cataracts can occur in the 30s, 40s, and 50s. Of course the older the patient gets the more common the cataracts.
Two neurotransmitters seem to play a role in Alzheimer's Disease: acetylcholine and glutamate. Acetylcholine (ACh) activates muscles and helps with arousal, short-term memory, and learning. Individuals with AD have low levels of ACh.
Approach Considerations. To date, only symptomatic therapies for Alzheimer disease (AD) are available and thus do not act on the evolution of the disease. All drugs approved by the US Food and Drug Administration (FDA) for the treatment of AD modulate neurotransmitters, either acetylcholine or glutamate.