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Senses in Primary Care Top 10: The Eyes Have It

Article

Diseases of the nervous system and sense organs-particularly eye and ear disorders-are prime diagnoses that bring patients to your primary care practice.

© Zffoto/Shutterstock.com

© Zffoto/Shutterstock.com

Checking the Eyes and Ears of Primary Care Visits

Of more than 1.25 billion ambulatory care visits to physician offices and hospital outpatient and emergency departments in the United States in 2009-2010, 106 million visits (8.5%) were for diseases of the nervous system and sense organs. More than 30 million of these visits were to primary care offices. The main diagnostic reasons for primary care visits in this category, as a group, were eye disorders. Another leading reason: ear disorders.

This is the sixth article in a series on top 10 diagnostic categories in primary care practice. In the first article, we summarized the leading diagnostic categories in primary care and how they may affect your practice. Subsequent articles provided more details on each of the top 4 diagnostic categories: respiratory, circulatory, endocrine, and musculoskeletal. This article addresses the number 5 diagnostic category, diseases of the nervous system and sense organs.

Find out more about the fifth leading reason for primary care visits in the pages that follow.

 

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Surgical Specialists See Most Nervous System and Sense Organ Visits

In 2009-2010, patients paid 30,164,000 ambulatory care visits to primary care offices for diseases of the nervous system and sense organs (28.4% of total visits).

Just over 50 million visits (47%) were to surgical specialty offices, the most frequently visited setting for these disorders.

Just under 13 million visits (12%) were to medical specialty offices.

Hospital outpatient departments and hospital emergency departments each accounted for more than 6 million visits and roughly 6% of total visits.

 

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Leading Diagnoses: The Eyes Are on Top

Collectively, eye disorders accounted for more than 49 million of total visits, making them the leading diagnoses within the nervous system and sense organs diagnostic category.

Cataracts were the reason for 10 million visits; glaucoma, about 9 million visits; retinal disorders, 6 million; conjunctivitis, close to 5 million; “other disorders of the eye and adnexa,” about 12 million.

Primary care offices saw more than half of cataracts visits.

 

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Otitis Media Is Number 1 Specific Diagnosis

More than 29 million visits in the nervous system and sense organs category were for ear disorders. Diagnoses included “otitis media and eustachian tube disorders,” “disorders of external ear,” and “other disorders of the ear and mastoid process.”

Otitis media and eustachian tube disorder diagnoses accounted for the most total ambulatory care visits (18.5 million) and most primary care visits (11.5 million) in the nervous system and sense organs category.

Primary care offices saw more than 62% of the total visits for otitis media and eustachian tube disorders.

 

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Migraine Draws Patients to Primary Care

More than 6.2 million visits were for migraines; primary care offices saw 3.3 million visits, more than half (53%) of total visits for migraines.

Migraines occur in more than 37 million Americans, an estimated 13% of the US population; 2 to 3 million persons have chronic migraine. Almost 5 million experience at least 1 migraine attack per month.

More than 70% of persons with migraine have a family history of migraine. Close to 70% have consulted a physician at some time to seek treatment for migraine pain.

In almost half of cases of migraine, the diagnosis has not been made. Close to 50% of persons who have symptoms that meet the guidelines for a diagnosis of migraine thought they had a tension headache, a sinus headache, or another type of headache.

The most frequently reported migraine symptoms are throbbing and pulsating pain, light sensitivity, sound sensitivity, nausea, pain on one side, vision changes and blurred vision, aura, and vomiting.

 

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Bringing Eye Disorders Into Focus: Some Specifics

Overview: Number of adult vision impairment and age-related eye diseases (estimated cases by vision problem age 40 years or older): cataract, 24.4 million; diabetic retinopathy, 7.7 million; glaucoma, 2.7 million; age-related macular degeneration (age 50 years and older), 2 million.

Cataract: Risk increases with age. Other risk factors: certain diseases, such as diabetes; personal behavior, such as smoking; the environment, such as prolonged sunlight exposure. Most common symptoms: cloudy or blurry vision, colors seem faded, glare, poor night vision, double vision.

Glaucoma: At first, open-angle glaucoma has no symptoms. Without treatment, patients slowly lose peripheral vision. Central vision may decrease until no vision remains. Glaucoma is detected through a comprehensive dilated eye exam that includes a visual acuity test, a visual field test, and tonometry.

Diabetic retinopathy: All persons with type 1 or type 2 diabetes are at risk; 40% to 45% of Americans with diabetes have some stage of diabetic retinopathy. Persons with proliferative retinopathy can reduce their risk of blindness by 95% with timely treatment and appropriate follow-up care.

 

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Otitis Media and Other Ear Issues

About 2 or 3 of every 1000 children in the United States are born with a detectable level of hearing loss in 1 or both ears. More than 90% of deaf children are born to hearing parents. Five of 6 children experience otitis media by the time they are 3 years old.

About 15% of American adults aged 18 years or older report some hearing difficulty; 1 in 8 persons in the United States aged 12 years or older has hearing loss in both ears.

Disabling hearing loss occurs in about 2% of adults aged 45 to 54 years, 8.5% of adults aged 55 to 64 years, nearly 25% of those aged 65 to 74 years, and 50% of persons 75 years or older.

About 15% of Americans aged 20 to 69 years have high-frequency hearing loss because of exposure to noise at work or during leisure activities. Roughly 10% of the US adult population has experienced tinnitus that lasted at least 5 minutes in the past year.

Fewer than 30% of adults aged 70 years or older who have hearing loss and could benefit from hearing aids have ever used them.

 

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Common Brain and Nervous System Conditions: Cases in the US

Vestibular and balance disorder: 90 million cases

Pain (chronic), spinal cord Injuries, phantom limb pain: 64 million

Developmental disorders: 48.6 million

Migraines/cluster headaches: 45 million

Tinnitus (severe): 42.8 million

Dyslexia and other learning disorder: 40 million

Postherpetic neuralgia: 39 million

Neuromuscular diseases: 28.3 million

Deaf or partially deaf: 27 million

 

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More Common Brain and Nervous System Conditions

Bipolar disorder: 23 million cases

Depression (major): 19.9 million

Anxiety disorders: 19.1 million

ADHD: 17.4 million

Macular degeneration: 15 million

Restless leg syndrome: 14.5 million

Substance abuse disorders (severe): 13.9 million

Blindness and visual impairments: 10 million

Diabetic neuropathy: 9.5 million

 

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And Still More Brain and Nervous System Conditions

Fibromyalgia: 6 million cases

Brain or head injuries (traumatic): 5.3 million

Anorexia, bulimia, and binge disorders: 5.2 million

Stroke: 4.7 million

Autism: 4.6 million

Alzheimer disease: 4.5 million

Epilepsy: 2.3 million

Parkinson disease: 1.5 million

Narcolepsy and sleep disorders: 1.4 million

 

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Top 10 Recap

• In the first article in this series, “Top 10 Reasons Why Patients Come to Primary Care,” we analyzed the leading diagnostic categories in primary care and how they may affect your practice.

• In the second article, we highlighted the number 1 diagnostic category in primary care, respiratory disorders.

• In the third article, we featured the number 2 diagnostic category, circulatory disorders, including hypertension, the most common diagnosis in primary care.

• The fourth article covered the third leading diagnostic category in primary care, endocrine disorders, including diabetes, another leading primary care diagnosis.

• In the fifth article, we reported on diseases of the musculoskeletal system and connective tissue, the fourth leading diagnostic category in primary care.

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