There is no associated pigmentation of the retinal pigment epithelium or vitreous. The schisis is most frequently located in the inferior temporal quadrant, has a discrete border and is immobile.
Inner retinal layers series#
Unselected clinical series reveal a bilateral occurrence in approximately 80% of cases, with typically symmetrical presentation between the eyes. Advanced cases may present a large peripheral visual field defect corresponding to the area of retinoschisis. The disease is asymptomatic in majority of cases. reticular (bullous) retinoschisis characterized by: an extremely thin inner wall consisting of inner limiting membrane, remnants of the nerve fiber layer, attenuated blood vessels, and complete loss of the supporting radial pillars.typical (flat) retinoschisis characterized by: adhesion of cystic lesions as a result of degeneration of neuroretinal and glial supporting elements within areas of peripheral cystoid degeneration deep separation of the retina into an inner and an outer layer the inner layer contains the inner limiting membrane, retinal vessels, and inner plexiform layer, whereas the outer layer has portions of the outer plexiform, outer nuclear, and photoreceptor layers.No ethnical predisposition has been found.īased on histopathological criteria, two forms of degenerative retinoschisis have been described: Occurrence in up to 22% of individuals older than 40 years has been reported. Foos in 1973.ĭegenerative retinoschisis affects about 5-7% of the adult population. Two histological forms of the disease have been described by B. It produces a well-circumscribed, transparent dome-shaped elevation of the inner retina that extends anteriorly towards the ora serrata.ĭegenerative retinoschisis was first reported by M. The terms senile or age-related degenerative retinoschisis are also used, but these names do not correctly describe this condition as it can also occur in the third decade of life (20-30 years).ĭegenerative retinoschisis is an acquired idiopathic condition characterized by gradual peripheral splitting of the retinal layers, typically between inner nuclear and outer plexiform layer. Degenerative retinoschisis is also known as acquired degenerative retinoschisis.
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