Eye screen

1. Any external obstruction involving murky opacity or deformation of the dark of the eye, or any scarring of this area left after disease, e.g., congealed-fat screen. Screens may occur in repletion patterns caused by wind evil or heat evil the liver and in vacuity patterns of liver-kidney depletion and effulgent vacuity fire. Repletion patterns are treated by coursing wind and clearing heat, resolving toxin and draining the liver. Vacuity patterns are treated by enriching the liver and kidney, and nourishing yīn and clearing heat. In addition, screens may arise through true eye damage in external injury.

2. Any internal or external obstruction that blocks the line of vision, including internal eye screens, such as round eye screens. See internal obstruction; external obstruction.