TCM relates certain areas of the eye to specific Zang:
|(a)||The canthus and the sclera close to the canthus relate to the Heart.|
|(i)||Redness in this area may be a sign of Heat present in the Heart.|
|(ii)||A pale canthus suggests Blood deficiency.|
|(b)||The sclera relates to the Lung.|
|(i)||A yellow sclera is an indication of the presence of Damp-Heat in the interior.|
|(ii)||A very white sclera can indicate the presence of Cold.|
|(c)||The pupil relates to the Kidneys.
Dilated pupils with blurred vision indicate Kidney deficiency.
|(d)||The iris relates to the Liver.|
|(e)||The upper and lower eyelids relate to the Spleen.
Inflamed eyelids may indicate the presence of Heat in the Spleen.
|(f)||If the entire eye is red, it may indicate Wind-Heat affecting the Liver.|
|(g)||Dark eyelids indicate Kidney deficiency.|
|(h)||Eyes that are deep in the orbit may indicate Jing deficiency.|