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427 Possible Causes for Melanin Dispersion in Iris, Persistent Fetal Vasculature, Transillumination of the 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[doi.org] Anterior segment abnormalities included absent iris crypts, iris transillumination, lens subluxation, and cataract.[ncbi.nlm.nih.gov] Persistent fetal vasculature is the other endostatin-deficiency related condition in KS patients.[journals.plos.org]

  • Exfoliation Syndrome

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

    Missing: Persistent Fetal Vasculature
  • Ectopia Lentis

    Those patients with simple lens ectopia as well as those with ectopic lenses and pupils had striking transillumination of the iris periphery.[ncbi.nlm.nih.gov] Recent speculation on its pathogenesis is based on clinical observation and includes a neuroectodermal defect or persistence of fetal vasculature.[ncbi.nlm.nih.gov] The association between ectopia lentis et pupillae and transillumination of the iris is well documented in the literature, but it has never been reported with skin hypopigmentation[ncbi.nlm.nih.gov]

    Missing: Melanin Dispersion in Iris
  • Isolated Ectopia Lentis

    Transscleral indirect transillumination of the iris did not show any iris pigment epithelial defects.[ijo.in] It can also occur as a secondary phenomenon due to persistent fetal vasculature. 1:02 Microspherophakia is a clinical description of a spherical lens, a lens that is reduced[hstalks.com] Recent speculation on its pathogenesis is based on clinical observation and includes a neuroectodermal defect or persistence of fetal vasculature.[ncbi.nlm.nih.gov]

    Missing: Melanin Dispersion in Iris
  • Norrie Disease

    transillumination defects, concave iris, increased pigmentation of trabecular meshwork, deposited pigment on Schwalbe's line AD - %600510 PRADER-WILLI SYNDROME Refractive[eyewiki.aao.org] vasculature.[ncbi.nlm.nih.gov] Other vitreoretinopathies that are associated with NDP gene mutations include X-linked familial exudative vitreoretinopathy, Coats disease, persistent fetal vasculature, and[ncbi.nlm.nih.gov]

    Missing: Melanin Dispersion in Iris
  • Pseudoexfoliation Syndrome

    Peripapillary atrophy and iris sphincter region transillumination Melanin dispersion associated with pupillary dilation Poor mydriasis, asymmetric pupil sizes Melanin dispersion[optometricmanagement.com] 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[tmj.ro] Atrophy of the pigment epithelium may be associated with anterior chamber melanin dispersion, which may be seen as a whorl-like pattern of pigment particles on the iris sphincter[slideshare.net]

    Missing: Persistent Fetal Vasculature
  • Peters Anomaly

    X-linked recessive megalocornea is reported more frequently and is associated with iris transillumination, pigment dis- persion, lens subluxation, arcus, and central crocodile[slideshare.net] This abnormality can cause a second pupil in the eye Persistent fetal vasculature: It was previously known as persistent hyperplastic primary vitreous.[dovemed.com] fetal vasculature and microcornea.[eyewiki.aao.org]

    Missing: Melanin Dispersion in Iris
  • Coloboma

    […] stroma. • usually wedge-shaped • best demonstrated by iris transillumination. • associated with Heterochromia iridis c/f • usually no visual defect, treatment • indicated[slideshare.net] The presence of ciliary body cysts in association with persistent fetal vasculature is sparsely reported.[ncbi.nlm.nih.gov] The authors discuss the association of persistent fetal vasculature and ocular coloboma in three children.[ncbi.nlm.nih.gov]

    Missing: Melanin Dispersion in Iris
  • Vitreous Hemorrhage

    Iris transillumination defects and apposition of the optic and iris were found. The patient was diagnosed with Uveitis-Glaucoma-Hyphema (UGH) Syndrome.[ncbi.nlm.nih.gov] Fetal Vasculature Dr.[eyetube.net] Iris transillumination defects and apposition of the nasal haptic and ciliary body were found. Iris chafing is a rare complication of cataract extraction.[ncbi.nlm.nih.gov]

    Missing: Melanin Dispersion in Iris
  • Glaucoma

    The patient had severe bilateral iris transillumination defects with posterior synechiae formation and 3 pigment with rare cell in the anterior chamber.[ncbi.nlm.nih.gov] Unoperated eyes with persistent fetal vasculature. Trans Am Ophthalmol Soc 2003 ; 101 : 59 –64. Raskind R.[doi.org] Persistent fetal vasculature (PFV): An integrated interpretation of signs and symptoms associated with persistent hyperplastic primary vitreous (PHPV) LIV Edward Jackson Memorial[djo.harvard.edu]

    Missing: Melanin Dispersion in Iris

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