Conjunctival congestion vessels originate from the conjunctival vessels on the surface, and are bright red. The closer they are to the fornix, the more obvious they are, and they can be pushed. When 0.1% adrenaline is dripped into the conjunctival sac, the congestion disappears.

Ciliary congestion ... the deep vascular network of corneal limbus is crimson, and the closer it is to corneal limbus, the more obvious it is. If it is pushed, the congestion of drops will not disappear.

At the same time, there is just called mixed congestion