Retina. SEM of a section through a human retina, the light-sensitive tissue that lines the inside of the eye. Light entering the eye passes through several layers of cells before reaching the light receptors. From top to bottom are seen: cell bodies of optical ganglion cells (pale red), which form the optic nerve; cell bodies of bipolar neurons and cell bodies of the receptor cells (red); and the rod (white) and cone (yellow) receptors. Rod cells different
Optic nerve gliomas are relatively uncommon tumours, with variable clinical course and often seen in the setting of neurofibromatosis type I (NF1). MRI is the modality of choice to diagnosis and assessment of the posterior extent of the tumour. T1: enlargement, often iso to hypointense compared to the contralateral side T1 C+ (Gd): enhancement is variable http://radiopaedia.org/articles/optic-nerve-glioma
Papilloedema Image showing a swollen optic disk and blood vessel constriction. Axon Optics Lenses reduce the severity and frequency of migraines, blepharospasm, and other light-sensitive conditions. If you have photophobia (light sensitivity), there is a 90% chance these will help you. Save $8.33 for reading me at www.axonoptics.com, use this coupon code exactly as written: pinme833
Optic nerve fibres. Coloured scanning electron micrograph (SEM) of axons from the optic nerve. Connective tissue fibres (thread-like) are also visible. The optic nerve visual information from the retina in the eye to the brain. Magnification: x2000 when printed at 10 centimetres wide.
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