Superficial Punctate Keratitis (causes)

Dry Eye
- Keratoconjunctivitis sicca (Sjögren syndrome)
Chronic inflammation
- blepharitis, meibomian gland dysfunction
- contact lens overwear
Toxicity
- contact lens soluation
- topical medications with preservative
  - benzalkonium chloride
- chemical exposure
Infection
- Viral keratitis
- Staphylococcal epithelial keratitis
- Pneumococcal conjunctivitis
- HSV keratitis
- Acanthamoeba keratitis
- Molluscum contagiosum
Allergy
- Vernal keratoconjunctivitis
Poor healing/Trauma
- Neurotrophic keratitis
- Exposure keratitis
- Recurrent corneal erosion syndrome
Corneal Dystrophies
- Map-dot-fingerprint dystrophy
Idiopathic
- Thygeson Superficial Punctate Keratitis