Collier's sign

Collier's sign (also known as Collier's tucked lid sign or posterior fossa stare ) is bilateral or unilateral eyelid retraction.wikipedia
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Parinaud's syndrome

pretectal syndrome
Causes include upper dorsal midbrain supranuclear lesions such as Parinaud's syndrome, 'top of the basilar syndrome', midbrain infarction, neurodegeneration or tumour, multiple sclerosis, encephalitis, and Miller-Fisher syndrome.
Eyelid retraction (Collier's sign)

Eyelid

eyelidspalpebralpalpebra
Collier's sign (also known as Collier's tucked lid sign or posterior fossa stare ) is bilateral or unilateral eyelid retraction.

Midbrain

mesencephalonmid-brainmesencephalic
It is an accepted medical sign of a midbrain lesion, first described in 1927 by J Collier.

Sclera

sclerotizedsclerotisedwhites of the eyes
With the eyes in the primary position, the sclera can be seen above the cornea, and further upgaze increases the distance between the eyelids and irises.

Cornea

cornealcorneal diseasecorneal diseases
With the eyes in the primary position, the sclera can be seen above the cornea, and further upgaze increases the distance between the eyelids and irises.

Neurodegeneration

neurodegenerativeneurodegenerative diseaseneurodegenerative diseases
Causes include upper dorsal midbrain supranuclear lesions such as Parinaud's syndrome, 'top of the basilar syndrome', midbrain infarction, neurodegeneration or tumour, multiple sclerosis, encephalitis, and Miller-Fisher syndrome.

Multiple sclerosis

MSdisseminated sclerosisMultiple sclerosis (MS)
Causes include upper dorsal midbrain supranuclear lesions such as Parinaud's syndrome, 'top of the basilar syndrome', midbrain infarction, neurodegeneration or tumour, multiple sclerosis, encephalitis, and Miller-Fisher syndrome.

Encephalitis

brain inflammationinflammation of the brainencephalitic
Causes include upper dorsal midbrain supranuclear lesions such as Parinaud's syndrome, 'top of the basilar syndrome', midbrain infarction, neurodegeneration or tumour, multiple sclerosis, encephalitis, and Miller-Fisher syndrome.

Guillain–Barré syndrome

Guillain-Barre syndromemiller fisher syndromeGuillain-Barré syndrome
Causes include upper dorsal midbrain supranuclear lesions such as Parinaud's syndrome, 'top of the basilar syndrome', midbrain infarction, neurodegeneration or tumour, multiple sclerosis, encephalitis, and Miller-Fisher syndrome.

Posterior commissure

nucleus of the posterior commissure
The cause is thought to be damage to the posterior commissure levator inhibitory fibres which originate in the M-group of neurons.

Levator palpebrae superioris muscle

levator palpebrae superiorislevator palpebraelevator
The cause is thought to be damage to the posterior commissure levator inhibitory fibres which originate in the M-group of neurons.

Neuron

neuronsnerve cellsnerve cell
The cause is thought to be damage to the posterior commissure levator inhibitory fibres which originate in the M-group of neurons.

Pinealoma

Pineal astrocytoma
Frequently, paralysis of upward gaze along with several ocular findings such as convergence retraction nystagmus and eyelid retraction also known as Collier's sign and Light Near Dissociation (pupil accommodates but doesn't react to light) are known collectively as Parinaud's syndrome or Dorsal Mid-brain syndrome, are the only physical symptoms seen.