NSG 2317 Lecture Notes - Lecture 15: Pupillary Light Reflex, Palpebral Fissure, Inferior Rectus Muscle
22 Jan 2018
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Document Summary
External anatomy: eyelids, palpebral fissure, limbus, canthus, caruncle, tarsal plates, meibomian glands, conjunctiva, lacrimal apparatus. Extraocular muscles: superior rectus, inferior rectus, lateral rectus, medial rectus, superior oblique, inferior oblique. Internal anatomy: outer fibrous sclera, middle vascular choroid. Visual pathways and visual fields: refraction of light rays, crossing of fibers at optic nerve, pupillary light reflexes, fixation, accommodation. Diabetic retinopathy - vision loss from high sugars - diabetes: cultural and social considerations. Unknown why people of african heritage have 3-6 times higher rate of glaucoma. Promoting health: screening for glaucoma: second leading cause of preventable blindness in canada, risk factors: Subjective data: health history: vision difficulty (decreased acuity, blurring, blind spots) Allergies: history of ocular problems, glaucoma - increased intraocular pressure, glasses or contact lenses. How do you clean them, remove them: self-care behaviors - sunglasses. Systemic/topical: medications, vision loss - sudden vs. slow. Additional health history questions: infants and children, older adults.
