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Retinal migraine is a retinal disease often accompanied by migraine headache and typically affects only one eye. It is caused by ischaemia or vascular spasm in or behind the affected eye. The terms "retinal migraine" and "ocular migraine" are often confused with " visual migraine ", which is a far-more-common symptom of vision loss, resulting ...
In ophthalmology, mucopurulent discharge from the eyes, and caught in the eyelashes, is a hallmark sign of bacterial conjunctivitis. The normal buildup of tears, mucus, and dirt (compare rheum) that appears at the edge of the eyelids after sleep is not mucopurulent discharge, as it does not contain pus. Vaginal discharge
Vitreous shrinkage or liquefaction, which is the most common cause of photopsia, causes a pull in vitreoretinal attachments, irritating the retina and causing it to discharge electrical impulses. These impulses are interpreted by the brain as flashes.
Dry eye syndrome, also known as keratoconjunctivitis sicca, is the condition of having dry eyes. [2] Symptoms include dryness in the eye, irritation, redness, discharge, blurred vision, and easily fatigued eyes. Symptoms range from mild and occasional to severe and continuous. [3]
[2] [3] Patients may have up to 3D of anisometropia before the condition becomes clinically significant due to headache, eye strain, double vision or photophobia. [ 4 ] In certain types of anisometropia, the visual cortex of the brain cannot process images from both eyes simultaneously ( binocular summation ), but will instead suppress the ...
Infection usually begins in the mouth or nose and enters the central nervous system via the eyes. [5] If the fungal infection begins in the nose or sinus and extends to brain, symptoms and signs may include one-sided eye pain or headache, and may be accompanied by pain in the face, numbness, fever, loss of smell, a blocked nose or runny nose.
A headache, also known as cephalalgia, is the symptom of pain in the face, head, or neck. It can occur as a migraine, tension-type headache, or cluster headache. [1] [2] There is an increased risk of depression in those with severe headaches. [3] Headaches can occur as a result of many conditions.
The theory explains why labyrinthine-defective individuals are immune to motion sickness; [31] [32] why symptoms emerge when undergoing various body-head accelerations; why combinations of voluntary and reflexive eye movements may challenge the proper operation of Sherrington's Law, and why many drugs that suppress eye movements also serve to ...