WebAug 25, 2016 · Secondary Movements: 1. Abduction of the eyeball. 2. Rotation of the eyeball so the vertical axis is outward. 3. Note: In paralysis, the eyeball is deviated downward and somewhat laterally; it cannot move upward when in abduction. 4. Note: In a III nerve lesion, the eye is outward and cannot be brought in. WebExtraocular movements (CN 3, 4, 6) are examined by asking the patient to follow a finger or pen or card with the eyes. This tests cranial nerves 3 (oculomotor), 4 (trochlear), and 6 (abducens). CN3 mediates medial deviation and all other directions of movement not coordinated by CN4 and CN6. CN4 innervates the superior oblique muscle, and ...
Extraocular Muscle Actions: Eye Movements, Rectus …
WebApr 9, 2024 · Schematic of the extraocular muscles and eye movements. A: The attachments of the extraocular muscles on the left eye, viewed laterally from the left side.B: The actions of the superior oblique as shown from above on the right eye (see text).C: Principal functions of the extraocular muscles demonstrated for the right eye. Note that … WebDec 20, 2016 · EOM (Extraocular Movements) – Movement of the eye in all directions, up, down, right and left. These movements are controlled by a set of small muscles in the face. Entrapment of these muscles can occur, particularly with trauma, causing problems with ocular movement. PERRLA – Shorthand for Pupils Equal, Round, React to Light, … earth 19289
Diagrammatic Recording of Ocular Motility - Wiley Online Library
WebSep 5, 2016 · Grading in ophthalmology is an ever evolving concept. Some grading systems are more popular than others. For example, diabetic retinopathy and cell / flare are almost universally accepted, while you will rarely run across formal APD measurements or dry … This is a high yield crash course in the fundamentals of ophthalmology. We … WebSix extraocular muscles act to move the eye up/down, left/right and intort/excyclotort. These six muscles control the eye in a complex combination of agonist and antagonist cooperation. Interestingly, the … WebExtraocular muscle function testing examines the function of the eye muscles. A health care provider observes the movement of the eyes in eight specific directions. How the Test is Performed You are asked to sit … earth 1924