Cataract
Nervous system and special senses
Adverse effects of drugs on the nervous system
Cerebrovascular disease
Congenital disorders
Cranial and peripheral nerve disorders
Degenerative disorders or amnesic syndromes
Demyelinating disorders
Disorders relating to the spine, spinal cord, and spinal nerve roots
Global cerebral dysfunction
Infectious, immunologic, and inflammatory disorders
Metabolic disorders
Movement disorders
Neurologic pain syndromes
Neuromuscular disorders
Paroxysmal disorders
Sleep disorders
Traumatic and mechanical disorders and disorders of increased intracranial pressure
Disorders of the ear
Disorders of the eye and eyelid
Nervous system and special senses pathology review
Summary
A cataract is a condition in which the eye becomes cloudy and opacified, affecting ones s vision. Cataracts can be congenital, meaning people are born with them. Congenital cataracts usually result from congenital infections or some genetic or metabolic conditions. Cataracts can also be acquired, usually in individuals with advanced age. Acquired cataracts develop slowly and can occur in one or both eyes. Over time, they become more dense and yellowed and can eventually cause blindness. Common risk factors for acquired cataracts include old age, excessive alcohol consumption, smoking, eye infection, or trauma. Risk is also increased in people with Diabetes Mellitus or in people whose eyes are exposed to radiation such as ultraviolet.