Table 1.

Classification of allergic conjunctivitis

	Mild	Moderate	Severe	Blinding
Bulbar Conjunctiva	Congestion	Congestion	Thickening and Trantas spots	Granulomas
Tarsal Conjunctiva	Micro papillae	Macro (1 mm) papillae	Giant (>1 mm) papillae	Mega Cobblestones
Cornea	-	Micro erosions	Macro-erosions	Shield ulcer
Limbus	-	Focal (<180) degrees inflammation	Diffuse (>180) degrees Inflammation	Limbal deficiency