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Vision and Pathways S Gautam
Superior Temporal Quadrantanopia How is it caused at the optic chiasm?
Pupils Horner’s Syndrome –Sympathetic injury –One sided pupillary constriction –Ptosis Caused by anything injuring sympathetic chain or pathway
Homes Adie Pupil –Postganglionic parasympathetic nerve damage –Tonically dilated pupil –Slow to constrict –Absent tendon reflexes –Excessive sweating
Argyll Robertson Pupil –Prostitute’s pupil (accommodates but doesn’t react) –Specific to syphilis (treponema pallidum) –Uncommon these days
Amaurosis Fugax Sudden visual loss Painless Fleeting to minutes ‘Curtain’ across the vision Ipsilateral carotid or ophthalmic artery
Holmes Adie Pupil
Vitreous Haemorrhage Painless loss of vision Unilateral Floaters, cobweb, haze, shadow High myopia risk factor Can be precursor for detachment
Retinal Vein Occlusion Loss of vision Usually on awakening Underlying coag. disorders Flame haemorrhages Risk Factors –DM –Smoking –Hyperlipidemia
Retinal Artery Occlusion Almost instant loss of vision Painless Usually elderly >60 Pale retina Cherry red spot (foveola) Preceding amaurosis fugax
Idiots guide to eye problems Cass Adamson January 2011.
Eyes in General Practice Dr Bruce Davies You are not alone! 4 A very popular topic 4 How much time at medical school? 4 What do the acuity numbers mean!
Overview Of Retinal Conditions Clinical and OCT Findings Central Coast Day Hospital Inaugural Optometrist Conference 26 th February 2012 Anil Arora.
EYE PROBLEMS IN GENERAL PRACTICE MAZHAR KHAN General practitioner Heaton Medical Practice.
Transient Ischaemic Attacks in East Lancashire 21 November 2012 Dr Arun Kumar Singh Consultant Physician East Lancashire Hospital NHS Trust.
THE EYE. Section through a mammalian eyeball Sclera Choroid Retina Vitreous humour Blind spot Optic nerve Fovea (yellow spot) Ciliary muscle Iris Cornea.
Visual Field Examinations Week 5. Glaucoma is a disease of the optic nerve. Progressive loss of axon or nerve fibers cause irreversible visual field.
Biology Specification 13.6 – Nervous coordination The mammalian eye Rods and Cones The nerve impulse Synapses and synaptic transmission Drugs.
Flashers, Floaters and Double Vision. Objectives Develop a safe approach to the disposition of patients complaining of both... sudden onset of unilateral.
Eyes External Anatomy Sensory Organ for vision -Situated in bony, orbital cavity for protection – Eyelids= shades that add protection form injury, strong.
Visual field examinations Week 6 Interpreting of visual fields.
Light. Where does light come from? Our major light source: the Sun.
Lesson Objectives Explain how light travels Explain how we see objects Know how shadows are formed.
ADDICTION AND VISION LOSS Bruce Kastner, M.S., O.D., Clinical Coordinator, CBVI.
INTRODUCTION Eye (anatomy), light-sensitive organ of vision in animals. The eyes of various species vary from simple structures that are capable only.
The NERVOUS System. Functions of the Nervous System l Sensory –senses stimuli from both within the body and from the external environment l Integrative.
Retinopathy of Prematurity By Jennie & Vicki. Statistics Approximately 30% of all premature infants with a birth weight of under 1500 grams will develop.
Accommodative and Multifocal IOLs Insert name/ Practice name/ Logo here if desired.
2 cases of hypertension Year 1 Michaelmas term 2006.
Underwriting Eye Disorders Philippine Society of Insurance Medicine Updates.
Chapter 42 Sensory System. Sensation, Perception, and Cognition Sensation –Ability to receive and process stimuli through sensory organs Perception –Ability.
Retinal Vascular Disease Don Simpson, O.D. St. Louis VA Medical Center.
Optic Disc Evaluation IN Glaucoma Dr Deepak Megur DOMS FRCS Ed Glaucoma & Cataract Services Megur Eye Care Centre Bidar
CRANIAL NERVES V-VII. Cranial Nerve V: Trigeminal Nerve large sensory root, which carries sensation from the skin and mucosa of most of the head and face,
Ascending & Descending nerve tracts Sanjaya Adikari Department of Anatomy.
F. Kianersi MD 1390 / 4 / 2. Sodium fluorescein (C20H10Na2) is a highly water-soluble complex organic molecule with a molecular weight of
The Eyes Have It!. Light, Lens, Action! How the Eye Works Take a moment to locate an object around you. Do you know how you are able to see it? Would.
Gerontological & Community Based Nursing: Physiologic Changes of Aging.
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