relative afferent pupillary defect

Also found in: Acronyms, Wikipedia.

rel·a·tive af·fer·ent pu·pil·lar·y de·fect

asymmetry of the pupillomotor input between the two eyes; tested by alternating the light from one eye to the other and comparing the reactions to direct light.
Farlex Partner Medical Dictionary © Farlex 2012
References in periodicals archive ?
Relative afferent pupillary defect was diagnosed in 15% of cases.
On physical examination, the visual acuity was 20/20 in both eyes and there was no relative afferent pupillary defect. Hertel measurements showed 6 mm of left exophthalmos.
Pupils were equally round and reactive to light with a relative afferent pupillary defect in her left eye.
Pupillography of relative afferent pupillary defect contralateral to monocular mature cataract.
Surgery is necessary if there is no clinical improvement within 48 hours; the condition worsens, especially if there is decreased vision and relative afferent pupillary defect; or there is a frank orbital, nor subperiosteal, abscess.
(24) Other pupillary signs can include a relative afferent pupillary defect (RAPD), which can be caused by optic nerve tumours.
Subconjunctival hemorrhage of the nasal conjunctiva in the left eye and relative afferent pupillary defect (RAPD) were observed.
The relative afferent pupillary defect was positive in the right eye.
Double vision was present in 7 (25%), bruit was present in 9 (32.14%), secondary glaucoma in 4 (7.1%), papilloedema in 2 (7.1%), primary optic atrophy in 7 (25%) with Relative Afferent Pupillary Defect (RAPD) and visual acuity ranging from 3/60 to no perception of light [Table 1].
In our patient, the presence of relative afferent pupillary defect in the right eye, impaired color vision in both eyes, and significantly prolonged p100 latency on pVEP were considered evidence of previous optic neuritis attack and optic nerve demyelination.
In patients with CRAO, an eye exam show profoundly decreased visual acuity, and the swinging light test (see "Use this mnemonic to ensure a comprehensive eye exam" on page 348) will reveal a relative afferent pupillary defect (RAPD).
His visual acuity was 6/6 right and 6/5 left, he had no relative afferent pupillary defect, and his ocular movements were normal.