Search results
Results from the WOW.Com Content Network
Diplopia. Diplopia. Other names. Double vision. One way a person might experience double vision. Specialty. Neurology, ophthalmology. Diplopia is the simultaneous perception of two images of a single object that may be displaced horizontally or vertically in relation to each other. [ 1] Also called double vision, it is a loss of visual focus ...
Ophthalmology. In ophthalmology, horror fusionis is a condition in which the eyes have an unsteady deviation, with the extraocular muscles performing spasm-like movements that continuously shift the eyes away from the position in which they would be directed to the same point in space, giving rise to diplopia. Even when the double vision images ...
Status epilepticus ( SE ), or status seizure, is a medical condition consisting of a single seizure lasting more than 5 minutes, or 2 or more seizures within a 5-minute period without the person returning to normal between them. [ 3][ 1] Previous definitions used a 30-minute time limit. [ 2] The seizures can be of the tonic–clonic type, with ...
Nyctalopia ( / ˌnɪktəˈloʊpiə /; from Ancient Greek νύκτ- (núkt-) 'night' ἀλαός (alaós) 'blind, invisible' and ὄψ (óps) 'eye'), [ 1] also called night-blindness, is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases. Night blindness may exist from birth, or ...
The present continuous, also called the present progressive or present imperfect, is a verb form used in modern English that combines the present tense with the continuous aspect. [ 1] It is formed by the present tense form of be and the present participle of a verb. The present continuous is generally used to describe something that is taking ...
Chronic pain or chronic pain syndrome is a type of pain that is also known by other titles such as gradual burning pain, electrical pain, throbbing pain, and nauseating pain. This type of pain is sometimes confused with acute pain [ a] and can last from three months to several years; various diagnostic manuals such as DSM-5 and ICD-11 have ...
Binocular vision. Principle of binocular vision with horopter shown. In biology, binocular vision is a type of vision in which an animal has two eyes capable of facing the same direction to perceive a single three-dimensional image of its surroundings. Binocular vision does not typically refer to vision where an animal has eyes on opposite ...
Papilledema or papilloedema is optic disc swelling that is caused by increased intracranial pressure due to any cause. [ 1] The swelling is usually bilateral and can occur over a period of hours to weeks. [ 2] Unilateral presentation is extremely rare. In intracranial hypertension, the optic disc swelling most commonly occurs bilaterally.