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Sections
in
Patients & Caregivers
Blood Disorders
Bone, Joint, and Muscle Disorders
Brain, Spinal Cord, and Nerve Disorders
Cancer
Children's Health Issues
Digestive Disorders
Disorders of Nutrition
Drugs
Ear, Nose, and Throat Disorders
Eye Disorders
Fundamentals
Heart and Blood Vessel Disorders
Hormonal and Metabolic Disorders
Immune Disorders
Infections
Injuries and Poisoning
Kidney and Urinary Tract Disorders
Liver and Gallbladder Disorders
Lung and Airway Disorders
Men's Health Issues
Mental Health Disorders
Mouth and Dental Disorders
Older People's Health Issues
Skin Disorders
Special Subjects
Women's Health Issues
Merck Manual
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Patients & Caregivers
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Eye Disorders
Eye Disorders
Biology of the Eyes
Structure and Function of the Eyes
Muscles, Nerves, and Blood Vessels of the Eyes
Protective Features of the Eyes
Effects of Aging on the Eyes
Symptoms of Eye Disorders
Abnormal Eye Sensation
Eye Pain
Light Sensitivity
Itching
Dryness
Changes in the Appearance of the Eyes
Red Eye
Dark Spots
Pupil Size
Inflammation Around the Eye
Other Changes
Changes in Vision
Loss of Vision
Distortion of Vision
Diagnosis of Eye Disorders
Introduction
The Eye Examination
Refraction
Visual Field Testing
Color Vision Testing
Ophthalmoscopy
Slit-Lamp Examination
Tonometry
Tests for Eye Disorders
Fluorescein Angiography
Electroretinography
Ultrasonography
Pachymetry
Computed Tomography and Magnetic Resonance Imaging
Refractive Disorders
Refractive Disorders
Causes
Symptoms and Diagnosis
Treatment
Corrective Lenses
Surgery for Refractive Errors
Eyelid and Tearing Disorders
Overview of the Eyelids and Tears
Blepharitis
Causes
Symptoms
Diagnosis
Treatment
Canaliculitis
Chalazion
Dacryocystitis
Dacryostenosis
Entropion and Ectropion
Eyelid Tumors
Stye (Hordeolum)
Symptoms
Treatment
Trichiasis
Conjunctival and Scleral Disorders
Overview of Conjunctival and Scleral Disorders
Infectious Conjunctivitis
Symptoms
Diagnosis
Prognosis and Treatment
Trachoma
Symptoms
Diagnosis
Prevention
Treatment
Allergic Conjunctivitis
Symptoms
Diagnosis and Treatment
Episcleritis
Scleritis
Noncancerous Growths
Corneal Disorders
Introduction
Superficial Punctate Keratitis
Corneal Ulcer
Symptoms
Diagnosis
Treatment
Keratoconjunctivitis Sicca
Symptoms
Diagnosis
Treatment
Keratomalacia
Herpes Simplex Keratitis
Herpes Zoster Ophthalmicus
Peripheral Ulcerative Keratitis
Keratoconus
Bullous Keratopathy
Cataract
Cataract
Symptoms
Diagnosis
Prevention
Treatment
Uveitis
Uveitis
Symptoms
Diagnosis and Treatment
Glaucoma
Glaucoma
Symptoms
Screening and Diagnosis
Treatment
Retinal Disorders
Overview of Retinal Disorders
Age-Related Macular Degeneration
Causes
Symptoms
Diagnosis
Treatment
Epiretinal Membrane
Detachment of the Retina
Symptoms and Diagnosis
Prognosis
Treatment
Retinitis Pigmentosa
Blockage of Central Retinal Arteries and Veins
Symptoms
Diagnosis
Treatment
Hypertensive Retinopathy
Diabetic Retinopathy
Symptoms
Diagnosis
Prevention
Treatment
Endophthalmitis
Cancers Affecting the Retina
Optic Nerve Disorders
Overview of Optic Nerve Disorders
Papilledema
Causes
Symptoms
Diagnosis
Treatment
Optic Neuritis
Symptoms
Diagnosis
Treatment
Ischemic Optic Neuropathy
Causes
Symptoms
Diagnosis
Treatment
Toxic Amblyopia (Nutritional Amblyopia)
Causes
Symptoms
Diagnosis
Treatment
Eye Socket Disorders
Introduction
Infections of the Orbit
Preseptal cellulitis
Orbital Cellulitis
Symptoms
Diagnosis
Treatment
Inflammation of the Orbit
Causes
Symptoms
Diagnosis
Treatment
Tumors of the Orbit
Proptosis
Causes
Symptoms
Diagnosis
Treatment
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