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176 Optic Neuritis_TeluguIn the most common form of optic neuritis, the optic nerve has been attacked by the body's overactive immune system and results in decreased vision.
177 Optic disc Drusen_TeluguOptic disc drusen are abnormal deposits of protein-like material in the optic disc - the front part of the optic nerve.
178 Microvascular Cranial Nerve Palsy_TeluguMicrovascular cranial nerve palsy is one of the most common causes of double vision in the older poulation. They are often referred to as "diabetic" palsies. They will resolve without leaving any double vision.
179 Blepharospasm_TeluguUncontrolled blinking, squeezing, and eyelid closure that occurs in both eyes without an apparent environmental cause.
180 Hemifacial Spasm_TeluguInvoluntary contractions, called "spasms," of the muscles on one side of the face. The affected side of the face seems to "scrunch up" while the other side of the face remains normal.
181 Apraxia of Eyelid OpeningRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitPatient has Parkinson disease and has developed this condition following deep brain stimulation.
182 Cogan's Lid Twitch SignRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitCogan's lid twitch sign is a twitch sign of he upper lid upon looking straight from a sustained downgaze position. It is associated with Ocular Myasthenia Gavis.
183 Congenital Oculomotor ApraxiaRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitCongenital Ocular Motor Apraxia is an uncommon condition that causes children to have difficulty moving their eyes horizontally or from side to side. They are usually unable to quickly move their eyes from side to side and often have to turn their head (head jerking) and not just their eyes to track...
184 Parinaud SyndromeRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitParinaud syndrome, as called dorsal midbrain syndrome, is due to dorsal midbrain lesions from compression (e.g., a tumor), demyelination, or ischemia. The syndrome is characterized by limitation of upward gaze, convergence retraction nystagmus, light near dissociation, and lid retraction (Collier's ...
185 Downbeat Nystagmus Anti-GAD Cerebellar SyndromeRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitA patient with Anti-GAD positive Cerebellar syndrome with ataxia and opsoclonus due to downbeat nystagmus , treated with Baclofen with some improvement.
186 Marcus Gun Jaw WinkingRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitMarcus Gunn Jaw Wink causes congenital ptosis and eyelid retraction associated with jaw movement or sucking. It's due to "miswiring" between 3rd and 5th cranial nerves. The treatment of ptosis in children is surgery to prevent amblyopia .
187 Ocular NeuromyotoniaRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitOcular Neuromytonia is a characterised by by paroxysmal tonic contraction of the extraocular muscles supplied by the oculomotor nerve. It is has been reported after cranial radiation therapy, especially to the sellar-parasellar region and from compressive lesions such tumours or aneurysms. The patho...
188 Oculopalatal TremorRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitThis is a usually vertical, pendular nystagmus associated with synchronous rhythmic movement of the palate, developing months after a severe brain stem stroke. The stroke involves the dentato-rubro-olivary tract (Mollaret's triangle). MRI can show hypertrophy of the inferior olivary nucleus in the m...
189 Optic Nerve Sheath FenestrationRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitOptic nerve sheath fenestration is performed to manage papilledema causing progressive loss of vision , due to raised intracranial pressure from Idiopathic Intracranial Hypertension or Cerebral Venous Sinus Thrombosis. The procedure is usually performed in cases of severe visual field loss or when m...
190 Periodic Alternating NystagmusRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitPAN is a nystagamus characterized by a cycle of uniderectional jerk nystagamus for 60-90 sec , a pause for 10-20 sec and a a cycle of a jerk nystagmus in the opposite direction for 60-90 sec. It is found in brain stem and cerebellar conditions as well as ocular albinism ( as in this patient).
191 Pulsating ExophthalmosRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitThis patient had brain surgery with bone removal resulted in transmission of CSF pulsation into the orbit and pulsating exophthalmos. This sign can also be seen in patient with neurofibromatosis with hypoplasia of the sphenoid wing bone.
192 Square Wave Jerks with ContrapulsionRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitA patient with history of brain stem stroke 2 months ago (right hemifacial anesthesia , left sided weakness and bulbar symptoms dysphagia) comes complaining of oscillipsia , binocular vertical diplopia). On exam he had a vertical tropia of 3-4 PD (Skew deviation), dissociated nystagmus , and saccadi...
193 See-Saw NystagmusRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitSee-saw nystagmus is a localizing nystagmus to lesions of the sellar and parasellar region. "It's characterized by synchronous elevation and intorsion of one eye and depression and extorsion of the contra lateral eye . This patent has a craniopharyngioma, which was operated twice, optic atrophy and ...
194 See-Saw NystagmusRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitThis nystagmus localizes to lesions supra/parasellar region (Large sellar and hypothalamic lesion) and is characterized by a see saw movement of elevation/intorsion of one eye and depression/extorsion of the other eye in a pendular fashion. This patient had a large pituitary macro-adenoma with supra...
195 Temporal Artery BiopsyRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitThis is a video of Superficial Temporal Artery Biopsy done under local anaesthesia for a patient who was suspected to have Giant Cell Arteritis (GCA. GCA is vasculitis of the medium sized vessels than can lead to permanent visual loss by causing Arteritis Ischemic Optic Neuropathy. The diagnosis of ...
196 Upbeat NystagmusRaed Behbehani, MD, Al-Bahar Ophthalmology Center, Kuwait City, KuwaitA patient with a brain stem syndrome due to demyelination and upbeat nystagmus.
197 AnisocoriaKarl C. Golnik, MD, Departments of Ophthalmology, Neurology & Neurosurgery, University of Cincinnati & The Cincinnati Eye InstituteThis is a narrated powerpoint presentation that covers the common causes of anisocoria.
198 Pituitary Tumors_ItalianPituitary tumors are benign (non-cancerous) overgrowth of cells that make up the pituitary gland (the master gland that regulates other glands in the body).
199 Pituitary tumor_TeluguPituitary tumors are benign (non-cancerous) overgrowth of cells that make up the pituitary gland (the master gland that regulates other glands in the body).
200 Emianopsia omonima new_ItalianThis refers to an absence of vision towards one side of the visual world in each eye. The damage that caused this problem is in the brain and not in the eyes.
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