KINS 2223 Study Guide - Midterm Guide: High Guard, Flat Feet, Visual Acuity
24 Aug 2016
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Document Summary
A snellen eye chart is used to determine visual acuity (static visual acuity: with letters at different sizes per line. This snellen eye chart is used with children in grade k-1 who may not recognize letters: with e of different lines of sizes, point to direction the e faces. Degree of detail that can be seen in an object. Strabismus misaligned eye: common at birth, diminishes during first week to 3 months (move each eye at random) should not persist beyond age 1. Lens of eye can adjust the focal point by changing shape: relaxation of the ciliary muscles causes lens to flatten, contraction of ciliary muscles causes lens to become spherical. Cones: responsible for color vision and visual acuity. Rods: responsible for colorless vision in low illumination (night vision); peripheral vision. Accommodation is the adjustment of the eye variations in light conditions. Muscles that control eye mvmt and dilator muscles of pupils are.
