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The fissure may be increased in vertical height in Graves' disease, which is manifested as Dalrymple's sign. It is seen in disorders such as cri-du-chat syndrome. In animal studies using four times the therapeutic concentration of the ophthalmic solution latanoprost, the size of the palpebral fissure can be increased. The condition is reversible.
This arrangement allows the left half of the visual field to end up on the right side of the brain and the right half of the visual field to locate to the left side. The optic nerves consist of the axons from the retinal ganglion of each eye. At the chiasm, 53% of the axons from the nasal retina cross the midline to join the uncrossed temporal ...
Duane syndrome is a congenital rare type of strabismus most commonly characterized by the inability of the eye to move outward. The syndrome was first described by ophthalmologists Jakob Stilling (1887) and Siegmund Türk (1896), and subsequently named after Alexander Duane, who discussed the disorder in more detail in 1905.
When an attempt is made to gaze contralaterally (relative to the affected eye), the affected eye adducts minimally, if at all. The contralateral eye abducts, however with nystagmus. Additionally, the divergence of the eyes leads to horizontal diplopia. That is if the right eye is affected the patient will "see double" when looking to the left ...
Patient sitting straight in front of the examiner, is asked look directly at the examiner's eye during the test. The target eye should be the one directly across from the patient's eye. When the patient's right eye is being tested, closing the other eye, patient is instructed to look directly at the examiners left eye.
The one and a half syndrome is a rare weakness in eye movement affecting both eyes, in which one cannot move laterally at all, and the other can move only in outward direction. More formally, it is characterized by " a conjugate horizontal gaze palsy in one direction and an internuclear ophthalmoplegia in the other ".
Horizontal fissure may refer to: ... Horizontal fissure of right lung; See also. Fissure (anatomy) Sulcus (morphology) This page was last edited on 21 ...
Limitation of abduction of the right eye. This individual tries to look to his right, but the right eye fails to turn to the side. The nerve dysfunction induces esotropia, a convergent squint on distance fixation. On near fixation the affected individual may have only a latent deviation and be able to maintain binocularity or have an esotropia ...