bitemporal hemianopia

hemianopia /hemi·an·o·pia/ (-an-o´pe-ah) defective vision or blindness in half of the visual field of one or both eyes; loosely, scotoma in less than half of the visual field of one or both eyes.hemianop´ic

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absolute hemianopia  blindness to light, color, and form in half of the visual field.

bilateral hemianopia  hemianopia affecting both eyes.

binasal hemianopia  that in which the defect is in the nasal half of the visual field in each eye.

binocular hemianopia  bilateral h.

bitemporal hemianopia  that in which the defect is in the temporal half of the visual field in each eye.

complete hemianopia  that affecting an entire half of the visual field in each eye.

congruous hemianopia  that in which the defect is approximately the same in each eye.

crossed hemianopia  heteronymous h.

heteronymous hemianopia  that affecting both nasal or both temporal halves of the field of vision.

homonymous hemianopia  that affecting the nasal half of the field of vision of one eye and the temporal half of the other.

nasal hemianopia  that affecting the medial half of the visual field, i.e., the half nearer the nose.

quadrant hemianopia , quadrantic hemianopia quadrantanopia.

temporal hemianopia  that affecting the lateral vertical half of the visual field, i.e., the half nearest the temple.

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bitemporal hemianopia

Etymology: L, bis, twice, tempora, temples; Gk, hemi, half, opsis, vision

a loss of the temporal half of the vision in each eye, usually resulting from a lesion in the chiasmal area such as a pituitary tumor.