Neuro-ophthalmology


Overview


Neuro-ophthalmology is an ophthalmic subspecialty that focuses on the relationship between the eye and the brain. It deals with the visual pathways from the eye to the visual cortex of the brain. The optic nerves carry the message of vision from the retina to the occipital cortex of the brain as an electrical current. This pathway, if damaged, results in visual loss.


If visual loss cannot be explained with a routine eye exam, it is often the job of the neuro-ophthalmologist to determine if there is a problem with the nerves and visual pathway behind the eye and within the brain. This is a challenging specialty and unique within the domain of ophthalmology.


Neuro-ophthalmologists provide comprehensive clinical care to patients with visual disturbance from optic nerve diseases, ocular motility dysfunction, eyelids  and pupillary abnormalities.

 

Symptoms:

 

Symptoms that are more common in neuro-ophthalmic disease include:


♦ Visual loss
♦ Double vision
♦ Abnormal colour vision
♦ Visual field defect
♦ Abnormal eye movements
♦ Droopy eyelids
♦ Unequal pupils
♦ Eyelid and facial spasms

 

Common Neuro-ophthalmic conditions:


♦ Ocular motor nerve palsy
♦ Optic neuritis
♦ Myasthenia Gravis
♦ NAION
♦ Toxic optic neuropathy
♦ Tr. optic neuropathy
♦ Blepharospasm and hemifacialspasm
♦ 7th nerve palsy
♦ Brain tumour
♦ Pseudo tumor cerebri


Consultants


Dr. Nazmun Nahar
Clinical Head of Department
Dr. Md. Sibgatullah

Services


Neuro-Ophthalmic Evaluation
A thorough medical history is first taken followed by a comprehensive neuro-ophthalmic examination, including:

 

 Testing of visual acuity
 Color vision testing
 Evaluation of the eye movements and ocular alignment
 Visual field testing
 Fundus examination

 

Diagnostic Services


 Visual field analysis including Humphrey,Octopus
 Colour fundus photography
 Hess screen
 Optical coherence tomography (OCT)
 Hematological laboratory