Marcus Gunn pupil is also known as Marcus Gunn sign and relative afferent pupillary defect (RAPD). It’s when the eye’s pupil only slightly contracts or dilates when light shines over it ...

Visual field defects, afferent pupillary defects and abnormal optic discs were associated with positive neuroimaging findings. Among patients with neuro-ophthalmological complaints, 77.3% reported ...

A normal response consists of a brisk pupillary constriction of the stimulated eye and simultaneous constriction of the fellow eye, maintained when the light is moved from one eye to the other. A ...

Having an understanding of the neural pathways that control the normal afferent and efferent pupillary responses is foundational, so we will review this before discussing abnormalities of the ...

Treatment typically focuses on the cause of Marcus Gunn pupil. This response indicates that there is dysfunction or disease in the optic nerve or retina. It is a type of relative afferent pupil ...

Examination reveals visual acuity of 20/40 in the left eye when tested with a Snellen chart, reduced color perception, and a left afferent pupillary defect (i.e., a poor response of the left pupil ...

Abnormal pupillary dilation or a delayed response could be indicative of a relative afferent pupillary defect secondary to conditions such as optic neuritis or central retinal artery occlusion.

The optic nerve forms the afferent limb of a number of brainstem reflexes that could potentially be exploited when testing its function, but the most useful has proved to be the pupil light reflex ...

In the 30 studies included in the systematic review, a relative afferent pupillary defect (RAPD) was found in between 9% and 82% of patients with glaucoma. In the 11 studies included in the meta ...

There was light-near dissociation of the right pupil. The left pupil was brisk. No relative afferent pupillary defect was noted. The visual fields and extraocular movements of both eyes were full ...

Because of this history, an examination was performed, which revealed vision OD of 20/50-2 and OS of light perception with a 4+ afferent pupil defect. His past medical history was significant for ...