Lid margin vascularity | |
0 = No or slight redness of lid margin conjunctiva and no telangiectasia crossing meibomian gland orifices | |
1 = Redness of lid margin conjunctiva and no telangiectasia crossing meibomian gland orifices | |
2 = Redness of lid margin conjunctiva and telangiectasia crossing meibomian gland orifices with a distribution of less than half of the full length of the lid | |
3 = Redness of lid margin conjunctiva and telangiectasia crossing meibomian gland orifices with a distribution of half or more of the full length of the lid | |
Plugging of meibomian gland orifices | |
0 = No plugging of gland orifices | |
1 = Plugging of fewer than three gland orifices | |
2 = Plugging of three or more gland orifices with a distribution of less than half of the full length of the lid | |
3 = Plugging of three or more gland orifices with a distribution of half or more of the full length of the lid | |
Lid margin irregularity | |
0 = No lid margin irregularity | |
1 = Fewer than three lid margin irregularities with shallow notching | |
2 = Three or more lid margin irregularities with shallow notching or any irregularities with deep notching |