3. CONT..
Corneal
• Infectious or inflammatory keratitis
• Contact-lens related problems
• Corneal foreign body
• Recurrent corneal errorsion
• Pterygium
• Neurotrophic keratopathy
• Medical mentosa
• UV burn or chemical burn
Other
• Trauma
• Post-operative
• Dry eye syndrome
• Endophthalmitis
• Anterior uveitis
• Episcleritis
• Scleritis
• Pharmacologic
• Angle-closure glaucoma
• Carotid-cavernous fistula
• Cluster headache
4. CONT..
Sub-conjunctival
hemorrhage:
• Diffuse or localized area of blood under
conjunctiva.
• Asymptomatic
• Idiopathic, trauma, cough, sneezing,
aspirin, hypertension
• Resolves with in 10-14 days
Dry eye syndrome
Poor quality control
• Meibomian gland disease, acne rosacea
• Lid related
• Vitamin A deficiency
Poor quantity
• KCS
• Lacrimal disease
• CN VII palsy
5. CONT..
Corneal abrasion
• Surface epithelium sloughed off
• Stains with fluorescein
• Usually due to trauma
• Pain, fb sensation, tearing, red eye
Corneal Ulcer
• Bacterial
• Viral
• Fungal
• Protozoan
• Mechanical or trauma
• Chemical
6. CONT..
Episcleritis
• Idiopathic, collagen vascular disorder
• Asymptomatic, mild pain
• Self-limiting, or topical treatment
Scleritis
Deep
• Idiopathic, collagen vascular disease,
zoster, sarcoidosis, dull, deep pain
• Systemic treatment with NSAID or
prednisolone if sever
8. DIFFERENTIAL DIAGNOSIS
Conjunctiva Pupil Cornea Anterior
chamber
IOP
Subconjunctival
hemorrhage
Bright red Normal Normal Normal Normal
Conjunctivitis Injected
vessels,
fornices.
Discharge.
Normal Normal Normal Normal
Iritis Injected
around
Small, fixed,
irregular
Normal, KPs Turgid, deep Normal
Acute glaucoma Entire eye red Fixed, dilated,
oval
Hazy Shallow High