- Horner's syndrome.

Horner's syndrome

*Def:-

It is a clinical syndrome caused by damage to the sympathetic nerve supply to head and neck.

*synonymes:-

• Bernard-Horner syndrome
• oculosympathetic palsy.

*Causes:-

Due to lesion or compression of one side of the cervical or thoracic sympathetic chain which generates symptoms on the ipsilateral (same side as lesion) side of the body:-

-Local causes of Miosis.

Local causes of Miosis (Constriction of the pupil)
"Path"

Puncture of anterior chamber.
Acute iritis.
Traumatic Miosis.
Hypermetropia.

Dr Ibrahim

-Causes of sudden complete loss of vision.

Causes of sudden complete loss of vision

"March"

Malingeres.
Amaurosis fugax.
Rupture globe(painful)
Central retinal artery occulsion(painless).
Hysteria.

Dr Ibrahim

-Effect of blunt trauma on optic nerve.

Effect of blunt trauma on optic nerve
"Heat"

Hemorrhage of the optic nerve sheaths.
Edema of the optic nerve with hypotony.
Avulsion of the optic nerve with twisting injuries.
Traumatic optic atrophy usually of primary type due to ischemia due to rupture of the capillaries.

Dr Ibrahim