NURS305 Chapter Notes - Chapter 15: Inferior Rectus Muscle, Lacrimal Apparatus, Medial Rectus Muscle
23 Dec 2016
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Extraocular muscle function: muscles: superior rectus, inferior rectus, lateral rectus, medial rectus, superior oblique (also to look down), inferior oblique (also up, oculomotor (cn iii), trochlear (cn iv), and abducens (cn vi) Pregnant women: dry eyes is very common, resulting from decreased circulation within conjunctival capillaries. Melasma (chloasma) is increased pigmentation around the eyes bc of prenatal progesterone levels: newborns, infants: reaches adult level by 4-5yo. Blink reflex, corneal reflex and reflex tearing is good: children and adolescents: vision changes (near sightedness) are common in adolescents, older adults: conjunctivae are thinner and may appear yellowish. Tearing decrease bc of loss of fatty tissue in lacrimal. Identifying the concern, and then determining whether the concern requires immediate medical attention. Visual acuity is the vital sign for the eye. Visual acuity assessment is a primary mode for determining urgency for eye care. Assessment of risk facts: questions to assess history and risk factors:
