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17 Possible Causes for Nystagmus Decreases on Convergence

  • Autosomal Dominant Congenital Nystagmus 3

    Clinical Characteristics Ocular Features: The nystagmus is horizontal in type and accentuated by fixation and decreased by convergence.[disorders.eyes.arizona.edu] It is typically a horizontal jerk nystagmus and it may be associated with abnormal head movement and decreases in intensity with convergence.[medical-dictionary.thefreedictionary.com] There may be components of jerk, circular, and pendular nystagmus. The nystagmus may be present at birth. Systemic Features: No systemic disease is present.[disorders.eyes.arizona.edu]

  • Nystagmus

    For other students, the null point may be when the eyes point up or down or to one side nystagmus will decrease as the eyes converge to look at a close object nystagmus will[svrc.vic.edu.au] Nystagmus may decrease when the eyes converge to read.[biopticdrivingusa.com] Low vision specialists can add prism to induce convergence artificially and thus reduce the nystagmus in some patients.[biopticdrivingusa.com]

  • Communicating Hydrocephalus

    The ocular motility disorder consisted of severe vertical gaze palsy and convergence retraction nystagmus.[ncbi.nlm.nih.gov] On the other hand, striatal uptake did not decrease in (18)F-dihydroxyphenylalanine positron emission tomography, and anti-Parkinsonian drugs were not effective. 99mTc-ethyl[ncbi.nlm.nih.gov]

  • Hereditary Nystagmus

    Nystagmus may decrease when the eyes converge to read.[lowvision.org] . • Eyelid closure or convergence, usually suppress it, but occasionally the nystagmus is evoked by viewing a near target. • Often nystagmus decreases when the eyes are moved[collections.lib.utah.edu] Low vision specialists can add prism to induce convergence artificially and thus reduce the nystagmus in some patients.[lowvision.org]

  • Oculodentodigital Dysplasia

    Less frequent ocular findings are nystagmus, palpebral fissure hypoplasia, epicanthal folds and convergent strabismus.[orpha.net] Ophthalmic anomalies include decreased visual acuity, microphthalmia, microcornea, cataracts, glaucoma, iris abnormalities and optic atrophy.[orpha.net]

  • Hereditary Spastic Paraplegia

    The nystagmus diminished briefly after blinks and horizontal saccades, and decreased during eccentric gaze and convergence.[ncbi.nlm.nih.gov] Vibratory stimuli decreased the nystagmus mostly in the left but not in the right eye.[ncbi.nlm.nih.gov] During lateral gazes, the PN increased in the abducting eye, but decreased in the adducting eye.[ncbi.nlm.nih.gov]

  • Spasmus Nutans

    […] intensity decreases when converging to view near objects in around 44% of individuals with IN. 8,12 However, there is no significant improvement in near VA at this time,[dovepress.com] It decreases when the child's eyes converge or move inward.[healthofchildren.com] […] despite significant dampening of the nystagmus. 11, 9 Barot et al 35 studied the reading performance of 71 individuals with IN and 20 controls, measuring reading acuity, near[dovepress.com]

  • Convergence Nystagmus

    The nystagmus decreases on convergence but increases on covering one eye. There may be abnormal eye posture in an attempt to keep the eyes in the null point.[mrcophth.com] Occlusion of cither eye during fixation of near targets led to divergent drift of the covered eye and a decrease in nystagmus.[journals.lww.com]  Physiologic nystagmus  Rebound nystagmusConvergence-induced nystagmus 82.[slideshare.net]

  • Infantile Periodic Alternating Nystagmus

    All patients showed gaze-evoked nystagmus (GEN) and reversed optokinetic nystagmus. In 2 patients (patient 1 and 4), the nystagmus decreased on convergence.[nature.com] […] intensity decreases when converging to view near objects in around 44% of individuals with IN. 8,12 However, there is no significant improvement in near VA at this time,[dovepress.com]  Head turn to achieve null point  Decreases with convergence  Increases with fixation 18.  Reverse response to OKN stimulus ( fast phase in direction of moving OKN drum[slideshare.net]

  • Autosomal Dominant Congenital Nystagmus 7

    Clinical Characteristics Ocular Features: The nystagmus is horizontal in type and accentuated by fixation and decreased by convergence.[disorders.eyes.arizona.edu] . • Eyelid closure or convergence, usually suppress it, but occasionally the nystagmus is evoked by viewing a near target. • Often nystagmus decreases when the eyes are moved[collections.lib.utah.edu] Eyelid closure or convergence, usually suppress it, but occasionally the nystagmus is evoked by viewing a near target.[repository.countway.harvard.edu]

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