Not to be confused with the infraorbital groove, infraorbital canal, and infraorbital foramen. The lateral wall and the floor of the orbit are separated posteriorly by the inferior orbital fissure which transmits the zygomatic branch of the maxillary nerve, and the ascending branches from the pterygopalatine ganglion.he infraorbital vessels are found in the inferior orbital fissure, and travel down the infraorbital groove into the infraorbital canal and exit through the infraorbital foramen.
If that fluid sack is depleted or running low because of dehydration, the brain can push up against parts of the skull, causing headaches. RELATED: 6 Unexpected Ways Eye Problems Can Hurt You. Some drinks that can cause dehydration include alcohol, energy drinks, and even caffeine as it has a slight diuretic effect.
Symptoms of moderate to severe dehydration include: 1  low blood pressure. 2  fainting. 3  severe muscle contractions in the arms, legs, stomach, and back. 4  convulsions. 5  a bloated stomach.6  heart failure. 7  sunken fontanelle-soft spot on a infants head.8  sunken dry eyes, with few or no tears.evere dehydration can cause death. The usual causes of dehydration are a lot of diarrhoea and vomiting. Dehydration can also occur if you do not eat or drink much during an illness or if you do not drink enough during or after strenuous exercise.