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Retinoschisis is an eye disease characterized by the abnormal splitting of the retina's neurosensory layers, usually in the outer plexiform layer.Retinoschisis can be divided into degenerative forms which are very common and almost exclusively involve the peripheral retina and hereditary forms which are rare and involve the central retina and sometimes the peripheral retina.
Retinoschisin also known as X-linked juvenile retinoschisis protein is a lectin [5] [6] that in humans is encoded by the RS1 gene. [ 7 ] It is a soluble, cell-surface protein that plays an important role in the maintenance of the retina where it is expressed and secreted by retinal bipolar cells and photoreceptors , [ 8 ] [ 9 ] as well as in ...
Cranioschisis (Greek: κρανιον kranion, "skull", and σχίσις schisis, "split") is a skull-related neural tube defect. The skull does not close all the way in this deformity (especially at the occipital region). As a result, the amniotic fluid enters the brain, leading to eventual brain degeneration and anencephaly. [1]
Type 1 may be defined as an acquired capillary ectasia (a focal expansion or outpouching) and dilation in the parafoveal region, leading to vascular incompetence. Telangiectatic vessels develop micro-aneurysms that leak fluid, blood, and occasionally, lipid. Macular telangiectasia type 1 has been called as a variant of Coats' disease.
Tessier number 1, 2, 12 and 13 are the paramedian clefts. These clefts are quite similar to the midline clefts, but they are further away from the midline of the face. Tessier number 1 and 2 both come through the maxilla and the nose, in which Tessier number 2 is further from the midline than number 1. Tessier number 12 is in extent of number 2 ...
Macular oedema, [1] familial macular edema: A 61-year-old man with medical history of type 2 diabetes that presents a macular edema, evidenced by an OCT (the edema marked with arrows). The central image is a 3D reconstruction of the retinal thickness (the edema is coloured in red). Specialty: Ophthalmology
Rachischisis (Greek: "rhachis - ῥάχις" - spine, and "schisis - σχίσις" - split) is a developmental birth defect involving the neural tube.This anomaly occurs in utero, when the posterior neuropore of the neural tube fails to close by the 27th intrauterine day.
Synchysis scintillans is a degenerative condition of the eye resulting in liquefied vitreous humor and the accumulation of cholesterol crystals within the vitreous. It is also known as cholesterolosis bulbi.