What is parinaud syndrome?
Parinaud syndrome is defined as a constellation of upward gaze palsy, convergence retraction nystagmus, light-near dissociation, and bilateral lid retraction.
What is dorsal midbrain syndrome?
The dorsal midbrain (Parinaud’s) syndrome is characterized by a supranuclear vertical gaze paresis (upward more than downward), lid retraction, convergence-retraction nystagmus, pupillary light-near dissociation, and pseudoabduction deficits caused by excessive convergence tone.
What is downward gaze palsy?
A vertical gaze palsy (VGP) is a conjugate, bilateral, limitation of the eye movements in upgaze and/or downgaze.
What is Sturgis syndrome?
Summary. Sturge-Weber syndrome (SWS) is a rare vascular disorder characterized by the association of a facial birthmark called a port-wine birthmark, abnormal blood vessels in the brain, and eye abnormalities such as glaucoma.
What is Parinaud syndrome?
Parinaud syndrome is a relatively uncommon neuroophthalmologic syndrome named for French ophthalmologist, Henri Parinaud. Parinaud syndrome has been known by many different names including dorsal midbrain syndrome, Sylvian aqueduct syndrome, pretectal syndrome, and Koerber-Salus-Elschnig syndrome.
What is Parinaud syndrome (dorsal midbrain syndrome)?
Parinaud syndrome has been known by many different names including dorsal midbrain syndrome, Sylvian aqueduct syndrome, pretectal syndrome, and Koerber-Salus-Elschnig syndrome. Parinaud syndrome is defined as a constellation of upward gaze palsy, convergence retraction nystagmus, light-near dissociation, and bilateral lid retraction.
What is Parinaud syndrome (Sylvian aqueduct syndrome)?
Parinaud syndrome is also known as sylvian aqueduct syndrome, dorsal midbrain syndrome, pretectal syndrome, and Koerber-Salus-Elschnig syndrome. Parinaud syndrome is classically described by the triad of impaired upward gaze, convergence retraction nystagmus, and pupillary hyporeflexia. This condition has multiple potential etiologies.
Is acute upward gaze palsy always a symptom of Parinaud syndrome?
Acute upward gaze palsy: Not always Parinaud syndrome. [Eur J Ophthalmol. 2020] Acute upward gaze palsy: Not always Parinaud syndrome. Rossi S, Frisullo G, Iorio R. Eur J Ophthalmol. 2020 Nov; 30(6):NP5-NP6.