II. History
- 
                          Eye Foreign Body
                          Sensation
                          - Corneal involvement (e.g. Corneal Abrasion, sicca syndrome)
 
- Eye scratchy or gritty Sensation
- 
                          Contact Lens Wear- Risk of infectious Keratitis
 
- Photophobia- Corneal involvement (e.g. Keratitis, Corneal Abrasion)
- Uveitis
- Migraine Headache
- Acute Angle-Closure Glaucoma (Narrow Angle Glaucoma)
 
- Headache
- Vision Loss with Eye Pain (emergent ophthalmology evaluation needed)
- Autoimmune Conditions
III. Exam
- Increased Intraocular Pressure (esp. >40-50 mmHg)
- Extraocular Movement pain
- Eyelid Swelling
- Eyelid Vesicles
- Photophobia on penlight test (light applied from 6 inches for 2 seconds)
- Fluorescein uptake
- 
                          Pupil defects- Optic Neuritis- Afferent pupil defect (Swinging Flashlight Test)
 
- Anterior Uveitis- Aniscoria (Unequal Pupils)
 
- Acute Angle-Closure Glaucoma (Narrow Angle Glaucoma)- Fixed, dilated pupil
 
 
- Optic Neuritis
IV. Causes: Eye Pain with Visible lesions
- See Red Eye
- Ocular foreign body
- Entropion Conjunctivitis
- Hordeolum
- Chalazion
- Corneal Ulcer
- Interstitial Keratitis
- Iritis
- Iridocyclitis
- Glaucoma
- Ocular Herpetic infection
- Conjunctiva calcification
- Band keratopathy
V. Causes: Eye Pain without lesions (quiet non-Red Eye)
- See Eye Pain without Redness
- Visual Loss or Visual Field Deficit- Narrow Angle Glaucoma
- Intraocular tumor
- Uveitis
- Posterior Scleritis
- Optic Neuropathy, Optic Neuritis or retrobulbar neuritis
 
- Associated neurologic deficits
- Associated Headache- Migraine Headache
- Temporal Arteritis
- Acute Sinusitis (Ethmoid, Sphenoid, or Frontal Sinus involvement)
- Cluster Headache
- Increased Intracranial Pressure
 
- Consider other diagnoses- Corneal Abrasion
- Graves Disease
- Eye strain
 
