Diffuse area, details of iris clearly 1 slight 25% to 50% 2 visible Easily visible translucent areas, 2 mild 50% to 75% 3 details of iris slightly obscure Opalescent areas, no details of iris 3 Greater than 75% 4 visible, size of pupil barely moderate discernible Opaque, iris invisible 4 severe CONJUNCTIVAE Redness Rating Chemosis Rating Discharge Rating Vessels normal 0 none No swelling 0 none No discharge 0 none Vessels definitely 1 Any swelling above 1 slight Any amount different 1 slight injected above normal slight normal from normal 2 mild More diffuse, deeper 2 mod. Obvious swelling Discharge with 2 mod. 3 mod. crimson red with with partial eversion moistening of lids and 3 3 individual vessels not of lids adjacent 4 severe severe easily discernible severe Swelling with lids Discharge with Diffuse beefy red half-closed moistening of lids and hairs and Swelling with lids considerable area half-closed to around eye completely closed IRIS Values Rating Normal 0 none above normal, congestion, swelling, circumcorneal injection, iris reacts to light 1 slight No reaction to light, haemorrhage, gross destruction 2 severe
Diffuse area, details of iris clearly visible 1 slight 25% to 50% 2 Easily visible translucent areas, details of iris slightly obscure 2 mild 50% to 75% 3 Opalescent areas, no details of iris visible, size of pupil barely discernible 3 moderate Greater than 75% 4 Opaque, iris invisible 4 severe CONJUNCTIVAE Redness Rating Chemosis Rating Discharge Rating Vessels normal Vessels definitely injected above normal More diffuse, deeper crimson red with individual vessels not easily discernible Diffuse beefy red 0 none 1 slight 2 mod. 3 severe No swelling Any swelling above normal Obvious swelling with partial eversion of lids Swelling with lids half-closed Swelling with lids half-closed to completely closed 0 none 1 slight 2 mild 3 mod. 4 severe No discharge Any amount different from normal Discharge with moistening of lids and adjacent Discharge with moistening of lids and hairs and considerable area around eye 0 none 1 slight 2 mod. 3 severe IRIS Values Rating Normal 0 none above normal, congestion, swelling, circumcorneal injection, iris reacts to light 1 slight No reaction to light, haemorrhage, gross destruction 2 severe