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The human visual system is capable of seeing light in a very narrow range of frequencies on the electromagnetic spectrum. On the short end, 400 nm wavelengths are observed as violet, while on the long end, 700 nm wavelengths are red.
28 sie 2013 · A step-by-step guide to examining the eyes in an OSCE setting, including visual acuity assessment, fundoscopy, video demonstration and an OSCE checklist.
The condition of the visual system can be determined by examining various aspects of visual sensation. For example, the ability to detect and identify small objects (i.e., visual acuity) can be affected by disorders in the transparent media of the eye and/or visual nervous system.
The visual system includes the eye and retina, the optic nerves, and the visual pathways within the brain, where multiple visual centers process information about different aspects (shape and form, color, motion) of visual stimuli.
In order to evaluate the visual system you should be able to recognize the significant external and internal ocular structures of the normal eye and to perform a basic eye examination. To achieve these objectives, you sh ould learn • The essentials of ocular anatomy • To measure and record visual acuity
22 sie 2023 · In this video, Dr. Pavlina Kemp reviews eye anatomy and how to perform a basic eye exam, obtain a history, and recognize common symptoms of ocular disease.
6.1.1 Describe the region of the electromagnetic spectrum that is perceived by our visual system, and the relative energy of photons at long and short wavelengths. 6.1.2 Describe the major parts of the eye and their role in focusing light to create a clear image. In this section, we will meet the range of the electromagnetic energy spectrum ...
