Aniridia

Aniridia is a rare condition characterized by a progressive fibrotic membrane within the anterior chamber that occurs after ocular surgery or by abnormal development of the iris of the eye. The iris is the circular, colored part in the middle Read More >>>>

Fifth Metacarpal Head Fracture

Fifth Metacarpal Head Fracture is isolated, closed, stable injury, dislocation, break the base of the 5th metacarpal tubular bone either oblique, transverse, comminuted, spiral, complete, incomplete intra-articular fracture associated with axial loading compression of the extended digit movement or longitudinal forcefully Read More >>>>

Retinal Artery Occlusion – Causes, Symptoms, Diagnosis, Treatment

Retinal artery occlusion refers to blockage of the retinal artery that carries oxygen to the nerve cells in the retina at the back of the eye. The lack of oxygen and nutrition delivery to the retina may result in severe Read More >>>>

Hypertensive Retinopathy – Causes, Symptoms, Treatment

Hypertensive retinopathy rarely causes significant visual loss. The retinal changes can be halted when hypertension is treated. However, arteriolar narrowing and AV changes persist. For untreated malignant hypertension, the mortality is high as 50% within 2 months of diagnosis and Read More >>>>

Graves Ophthalmopathy – Causes, Symptoms, Treatment

Graves ophthalmopathy, also known as thyroid eye disease (TED), is an autoimmune inflammatory disorder of the orbit and periorbital tissues, characterized by upper eyelid retraction, lid lag, swelling, redness (erythema), conjunctivitis, and bulging eyes (exophthalmos).[rx] It occurs most commonly in Read More >>>>

Cranial Nerve Six – Anatomy, Nerve and Blood Supply

Cranial Nerve Six/Cranial nerve six (CN VI) also known as the abducens nerve, is one of the nerves responsible for the extraocular motor functions of the eye, along with the oculomotor nerve (CN III) and the trochlear nerve (CN IV). The sixth cranial nerve runs a Read More >>>>

The Occipital Nerves – Anatomy, Nerve and Blood Supply

The Occipital Nerves are a group of nerves that arise from the C2 and C3 spinal nerves. They innervate the posterior scalp up as far as the vertex and other structures as well, such as the ear.[rx] There are three major Read More >>>>

Third Cranial Nerve (CN III) – Anatomy, Nerve and Blood Supply

Third Cranial Nerve (CN III) /Oculomotor Nerve is the third cranial nerve (CN III). It enters the orbit via the superior orbital fissure and innervates extrinsic eye muscles that enable most movements of the eye and that raise the eyelid. The nerve also contains fibers that innervate the intrinsic Read More >>>>

Oculomotor Nerve – Anatomy, Nerve and Blood Supply

Oculomotor Nerve is the third cranial nerve (CN III). It enters the orbit via the superior orbital fissure and innervates extrinsic eye muscles that enable most movements of the eye and that raise the eyelid. The nerve also contains fibers that innervate the intrinsic eye muscles that enable pupillary Read More >>>>

The Ophthalmic Artery – Anatomy, Nerve and Blood Supply

The ophthalmic artery is the first branch of the internal carotid artery. It comes off just distal to the cavernous sinus. The ophthalmic artery gives off many branches, which supply the orbit, meninges, face, and upper nose. When the ophthalmic Read More >>>>

The Orbits – Anatomy, Nerve And Blood Supply

The orbits are bony structures of the skull that house the globe, extraocular muscles, nerves, blood vessels, lacrimal apparatus, and adipose tissue. Each orbit protects the globe, while the supportive tissues allow the globe to move in three dimensions (horizontal, Read More >>>>

The Optic Canal – Anatomy, Nerve and Blood Supply

The optic canal is a funnel-like structure as part of the sphenoid bone that extends from the optic foramen to the orbital apex, the posterior-most end of the orbit. The orbital apex consists of the optic canal and the superior orbital fissure. Read More >>>>