The first two wave types, P and S , are called body waves because they travel or propagate through the body of Earth. The latter two are called surface waves they the travel along Earth's surface and their amplitude decreases with depth into Earth.
The causes are many and can have bacterial infection, seborrheic dermatitis of the face or even a scalp, rosacea, allergies, and in very rare cases, the lice. If the itchy eyelids is brought about by seborrheic dermatitis then you may develop dry, flakey patches of skin on the eyelid.
Causes of Similar Symptoms to Eyelid bruise. Research the causes of these symptoms that are similar to, or related to, the symptom Eyelid bruise: 1  Sore eyelid (12 causes). 2  Red eye (630 causes). 3  Eyelid symptoms (911 causes). 4  Blunt trauma. 5  Coagulopathy. 6  Anticoagulant medications. 7  Bacterial septicaemia. 8  Eyelid injury.