n. 1. (in ophthalmology) any abnormal position of one or both eyes. For example, if the eyes are both looking to one side when the head is facing forwards, they are said to be deviated to that side. Such deviations of both eyes may occur in brain disease. Deviations of one eye, such as *dissociated vertical deviation, come into the category of squint (see strabismus). 2. see sexual deviation.
Any type of pleasurable sexual practice which society regards as abnormal. Deviation may be related to the activity, such as EXHIBITIONISM or sadomasochistic sex (see SADISM; MASOCHISM); or to the sexual object, for example, shoes or clothes (fetishism). Di?erent cultures have di?erent values, and treatment is probably not required unless the deviation is antisocial or harmful to the participant(s). Aversion therapy, or the conditioning of a person’s behaviour, may help if treatment is considered necessary.... sexual deviation
A form of sexual behaviour, most common in men, in which intercourse between adults is not the final aim. Forms of sexual deviation include exhibitionism, fetishism, paedophilia, and transvestism.... deviation, sexual
(DVD) a condition in which one eye looks upwards when the amount of light entering it is reduced, e.g. when it is covered. The eye returns to its original position when the cover is removed. DVD is an acquired condition chiefly associated with infantile esotropia (convergent *strabismus). The deviation is dissociated since there is no movement of the focusing (i.e. uncovered) eye during the deviation or return phase.... dissociated vertical deviation
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