Inflamed Pinguecula 
     
     
  
  
  
  
   
    Focal engorgement of conjunctival vessels and thickening of conjunctiva, nearly always at edge of cornea on nasal side  Mild form of pterygium   Caused by chronic exposure to ultraviolet light in predisposed individuals  Usually resolves spontaneously, but faster with artificial tears or topical vasoconstrictors   
   
  
 
  
  
   
    Elevated patch  of conjunctiva with engorged vessels leading to itMild eye pain or irritation  
   
  
 
  
  
   
    Episcleritis, scleritis, BUT... Episcleritis  causes less focal conjunctival mounding and more engorgement of deeper vessels, which are not necessarily located near cornea in medial canthusScleritis  causes more eye pain and engorgement of deeper vessels 
   
  
 
 
  
  
   
    Prescribe topical over-the-counter vasoconstrictors If they are not effective within 2 days, question diagnosis and refer non-urgently to ophthalmologist  
   
  
 
 
  
  
   
    Manifestations usually resolve spontaneously within days but may endure