Basic sciences for ophthalmology, 1st Edition by Louise A Bye; Neil C Modi; Miles Stanford

By Louise A Bye; Neil C Modi; Miles Stanford

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Extra resources for Basic sciences for ophthalmology, 1st Edition

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They receive afferent fibres from the primary visual area, other cortical areas, and the thalamus. This area relates visual information from the primary area to previous visual experience. Area 18 plays a role in integrating the two halves of the visual field via commissural fibres that cross the midline. It may be of importance in sensory-motor coordination and control of the cranial nerve nuclei in their role in eye movement. The visual cortex receives its blood supply from the posterior (and middle) cerebral artery.

C) Inferior orbital wall (orbital floor). (d) Medial orbital wall. (e) Orbital foramina. (f ) Orbital apex. Reproduced from David R. Jordan, Louise Mawn and Richard L. 7b, Page 88, 2012, with permission from Oxford University Press. the ophthalmic artery along with its surrounding sympathetic plexus. The SOF lies between the greater and lesser wings of the sphenoid. It connects the MCF with the orbital cavity. It lies between the roof and lateral wall of the orbit. At the inferomedial end of the SOF lies a CTR, which is the origin for the four rectus muscles.

These move through the nerve plexus surrounding the internal carotid artery. They join the deep petrosal nerve, then the nerve of the pterygoid canal, then the maxillary nerve, the zygomatic nerve, the zygomaticotemporal nerve, and finally the lacrimal nerve. Sensory The sensory fibres are branches of the ophthalmic division of the trigeminal nerve. These reach the lacrimal gland, as with all lacrimal gland terminations, via the lacrimal nerve. Parasympathetic ● ● Orbit and adnexa Sympathetic Parasympathetic supply arises from the lacrimal or lacrimatory nucleus (a portion of the superior salivatory nucleus) of the facial nerve.

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