OFD


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OFD

Abbreviation for orofaciodigital syndrome.

OFD

abbreviation for oral-facial-digital.

distance

(dis'tans) [L. distantia, remoteness]
The space between two objects.

focal distance

In ophthalmology, the distance from the optical center of a lens to the focal point.

focal-film distance

Abbreviation: FFD
Focus-film distance.

focus-film distance

Abbreviation: FFD
In radiography, an obsolete term for source-to-image receptor distance.
Synonym: focal-film distance See: source-to-image receptor distance

hearing distance

The distance at which a given sound can be heard.

infinite distance

1. A distance without limits.
2. In ophthalmology, the assumption that the light rays coming from a point of a distance beyond 20 ft (6.1 m) are practically parallel and accommodation is unnecessary.

interocclusal distance

The distance between the occlusal surfaces of opposed teeth when the mandible is at rest.

interocular distance

In ophthalmology, the distance between the eyes.
See: hypertelorism

interpupillary distance

In ophthalmology, the distance between the centers of the pupils of the eyes.

margin crease distance

In ophthalmology, the height that the crease of the eyelid sits above the upper eyelid margin when the eye is positioned in primary gaze.

object-film distance

Abbreviation: OFD
In radiography, an obsolete term for object-image receptor distance.

object-image receptor distance

Abbreviation: OID
In radiography, the distance between the anatomical structure to be imaged and the radiographic image receptor.

source-object distance

Abbreviation: SOD
In radiography, the distance between a source of radiation and the object that it images or radiates.

source-skin distance

In radiography, the distance from a radiation source to a patient's skin.

source-to-image receptor distance

Abbreviation: SID
In radiography, the distance from the x-ray tube to the radiographical film or the image receptor.

target-skin distance

Abbreviation: TSD
1. In radiography, the distance from the source of radiation to the point where the beam enters the patient.
2. In radiation therapy, a common value used for determination of the depth at which the treatment time is calculated.

object-film distance

Abbreviation: OFD
In radiography, an obsolete term for object-image receptor distance.
See also: distance

OFD

Abbreviation for orofaciodigital syndrome.
References in periodicals archive ?
50 mm, respectively; the corresponding values in the OFD group were 1.
Moreover, NBA and the NBA (%) were significantly enhanced for the 1- and 3-wall intrabony defects in ABB + CM groups as compared to that in their correspondent OFD groups ( P < 0.
The 1-wall OFD group exhibited a significantly extended JE as compared to that in the 1-wall ABB + CM group ( P < 0.
In addition, there were no significant differences in the histological signs of inflammation, quality and maturity of newly formed bone in the 1-wall intrabony defects between the ABB + CM and OFD groups [Table 2].