| gunter's quadrant | A thin quadrant, made of brass, wood, etc, showing a stereographic projection on the plane of the equator. By it are found the hour of the day, the sun's azimuth, the altitude of objects in degrees, etc. See Gunter's scale. Source: Websters Dictionary (01 Mar 1998) |
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| quadrant | <dentistry> The four parts of your mouth, that is the upper left, the upper right, the lower left, and the lower right. (08 Jan 1998) |
| absolute hemianopia | Hemianopsia in which the affected field is totally insensitive to all visual stimuli. Synonym: complete hemianopia. (05 Mar 2000) |
| altitudinal hemianopia | A defect in the visual field in which the upper or lower half is lost; may be unilateral or bilateral. (05 Mar 2000) |
| binasal hemianopia | Blindness in the nasal field of vision of both eyes. (05 Mar 2000) |
| bitemporal hemianopia | Blindness in the temporal field of vision of both eyes. (05 Mar 2000) |
| complete hemianopia | Hemianopsia in which the affected field is totally insensitive to all visual stimuli. Synonym: complete hemianopia. (05 Mar 2000) |
| congruous hemianopia | Hemianopsia in which the visual field defects in both eyes are completely symmetrical in extent and intensity. (05 Mar 2000) |
| crossed hemianopia | Attitudinal hemianopia involving the upper field of one eye and the lower field of the other; or a binasal or bitemporal hemianopia. Synonym: crossed hemianopia. (05 Mar 2000) |
| hemianopia | Loss of vision for one half of the visual field of one or both eyes. Synonym: hemianopsia. (05 Mar 2000) |
| heteronymous hemianopia | Attitudinal hemianopia involving the upper field of one eye and the lower field of the other; or a binasal or bitemporal hemianopia. Synonym: crossed hemianopia. (05 Mar 2000) |
| pseudo-hemianopia | A condition in which individual stimuli are seen correctly, but when the nasal visual field of one eye and the temporal visual field of the fellow eye are stimulated simultaneously, one field is blind. Synonym: visual extinction. (05 Mar 2000) |
| homonymous hemianopia | Blindness in the corresponding (right or left) field of vision of each eye. (05 Mar 2000) |
| quadrantic hemianopia | Loss of vision in a quarter section of the visual field of one or both eyes; if bilateral, it may be homonymous or heteronymous, binasal or bitemporal, or crossed, e.g., involving the upper quadrant in one eye and the lower quadrant in the other. Synonym: quadrantic hemianopia. (05 Mar 2000) |
| incomplete hemianopia | Hemianopsia involving less than half the visual field of each eye. (05 Mar 2000) |