Create issue ticket

3,581 Possible Causes for Melanin Dispersion in Iris, Nystagmus, Transillumination of the Iris

  • Ocular Albinism

    Other definite findings include lack or absence of stereoacuity, transillumination defects of iris and pendular nystagmus which typically develops in affected males during[] BACKGROUND: Nystagmus is common to all types of albinism.[] However, on further examination by a specialist the iris turns out to be able to let light through. This is called iris transillumination.[]

    Missing: Melanin Dispersion in Iris
  • Oculocutaneous Albinism

    An African girl with OCA-2 showing iris transillumination, yellowish tinted hair and many solar lentigines.[] Nystagmus is the most frequent ocular sign for the ascertainment of albinism particularly in individuals who have lightly-pigmented parents.[] As a measure of ocular pigment, iris transillumination and macular transparency were graded according to a previously published scheme.[]

    Missing: Melanin Dispersion in Iris
  • Albinism

    […] correct for the nystagmus.[] An African girl with OCA-2 showing iris transillumination, yellowish tinted hair and many solar lentigines.[] Iris Color and Transillumination: The pigmentation of iris and choroid may be lacking causing light to penetrate directly through the structures of the eye rather than only[]

    Missing: Melanin Dispersion in Iris
  • Knobloch Syndrome Type 1

    […] pigment epithelial cell layer and release of melanin granules that resembled the human pigment dispersion syndrome. 33 Two patients in our series with clinical features of[] Anterior segment abnormalities included absent iris crypts, iris transillumination, lens subluxation, and cataract.[] Nystagmus (dancing of the eyes), and strabismus (crossing of the eyes) are often present.[]

  • Pseudoexfoliation Syndrome

    Peripapillary atrophy and iris sphincter region transillumination Melanin dispersion associated with pupillary dilation Poor mydriasis, asymmetric pupil sizes Melanin dispersion[] Loss of iris pigment and its deposition throughout the anterior segment are refl ected in iris sphincter region transillumination defects, loss of the pupillary ruff, pigment[] A patient with acute onset of mental status changes, nystagmus and wha in the ER and a negative cranial imaging for a posterior fossa lesion should be evaluated for Wernicke[]

  • X-Linked Recessive Ocular Albinism

    Perhaps three-quarters of carrier females have transillumination defects in the iris.[] At the Nystagmus Network Open Day, a speaker on genetics explained that with nystagmus the most common genetic pattern is X linked, but it can also be autosomal recessive[] Donaldson DD (1974): Transillumination of the iris. Trans Am Ophthalmol Soc 72: 89 -106. 6.[]

    Missing: Melanin Dispersion in Iris
  • Exfoliation Syndrome

    The melanin dispersion is from atrophy of the iris pigment epithelium. Actual pseudoexfoliative material may be noted on the TM.[] Furthermore, prominent concentric, circular iris transillumination (grade 3) was only observed in XFS.[] Other clinical signs associated with exfoliation syndrome are pigment dispersion, transillumination defects of the iris and reduced response to mydriatics.[]

    Missing: Nystagmus
  • Nystagmus

    The following are normal in individuals with FIN: Slit-lamp biomicroscopy (normal iris pigmentation with no iris transillumination) Fundoscopy Cranial MRI Electroretinogram[] The most common types of infantile nystagmus are 'congenital nystagmus' (CN) and latent/manifest latent nystagmus (LMLN).[] The practitioner should look for structural abnormalities such as iris transillumination (albinism) and congenital cataracts.[]

    Missing: Melanin Dispersion in Iris
  • Central Positional Vertigo

    Where possible, parents should be examined for the presence of subtle nystagmus, iris transillumination and foveal hypoplasia (seen in albinism phenotypes and PAX6 gene disease[] The direction of nystagmus is important for the diagnosis of central paroxysmal positioning nystagmus (cPPV) . Neuro-Ophthalmology, Vol. 21, Issue. 2, p. 97.[] Effect of Fixation on Nystagmus 4. Vestibular versus Central Nystagmus 5.[]

    Missing: Melanin Dispersion in Iris
  • Hereditary Nystagmus

    Anterior segment: Transillumination defects in the iris can be the only sign for albinism.[] Our present understanding of the genetics of hereditary nystagmus is somewhat limited.[] Anterior segment was remarkable only for subtle iris transillumination defects in both eyes.[]

    Missing: Melanin Dispersion in Iris

Similar symptoms