upgaze


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upgaze 

Movement of the eyes upward with the head in the straight-ahead position. See elevation of the eye.
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As with our second patient, there are patients who postoperatively develop limitation of movement in the IO muscle field and diplopia on upgaze, similar to Brown's syndrome.
Three years before the onset of the upgaze diplopia and right cheek compression, the patient had undergone brain MRI screening for a lacunar infarction.
If restriction to upgaze is demonstrated on the FDT, inferior rectus muscle (IR) restriction is present.
Paroxysmal tonic upgaze of childhood with co-existent absence epilepsy.
It's called restricted upgaze. The normal eye level of many elderly residents is lower than one may realize, as many are unable to raise their heads, especially in later stages of Alzheimer's disease.
At two weeks followup, the patient returned with complaints of diplopia on upgaze. A CT scan showed a 22 mm long foreign body in close relation with the inferior rectus along the orbital floor causing an inflammatory reaction.
Eye movement in the right eye was limited in upgaze. There was pronounced proptosis bilaterally: 26 mm on the right and 23 mm on the left with a base measure of 105 mm.
The inferior rectus muscle is the most commonly affected, followed by the medial, superior then lateral rectus with ocular movements usually worst on upgaze. (25) Patients frequently complain of diplopia in the morning, which gradually improves and then worsens again on tiredness.
"A" and "V" patterns describe horizontal strabismus that is vertically incomitant and is characterized by a substantial change in the horizontal deviation from the midline position in upgaze as compared to downgaze.
Frontalis partly contribute to lid elevation above the line of vision in extreme upgaze and also it compensates the levator action in levator dystrophy.
In the ophthalmologic examination of the left eye, best-corrected visual acuity (BCVA) was 0.4, and hypotropia, limitation of upgaze, and macular pucker were detected.
The force exerted by the extraocular muscles on the globe can cause the IOP to increase when the direction of gaze changes from the primary position, particularly in upgaze. Though this effect is modest (<2mmHg) in most patients, (9) those with disorders of the extraocular muscles, for example, in thyroid eye disease, will exhibit a much higher increase in IOP.