What is a Tigroid fundus?
(tes’ĕ-lāt-ĕd fŭn’dŭs) A normal fundus to which a deeply pigmented choroid gives the appearance of dark polygonal areas between the choroidal vessels, especially in the periphery.
What is fundus tessellation?
Fundus tessellation, defined as variation in the visibility of large choroidal vessels, was differentiated into three grades. Results: The prevalence and degree of fundus tessellation were 688/1430 (48.1%; 95% confidence intervals [CI]: 45.5%, 50.7%) and 0.54 ± 0.61 (median, 0.00; range, 0–3), respectively.
What causes a tigroid fundus?
If the retinal pigment epithelium is not well pigmented, as in people with blond or red hair, then the underlying choroidal vessels may become strikingly visible. This is sometimes termed a tigroid fundus.
What does tigroid mean?
Medical Definition of tigroid
1 : having a striped or spotted appearance pathological changes in the eye resulted in a tigroid fundus. 2 : being or consisting of Nissl substance.
Is Tigroid fundus normal?
A normal fundus to which a deeply pigmented choroid gives the appearance of dark polygonal areas between the choroidal vessels, especially in the periphery.
What causes a Tigroid fundus?
What is Retinoschisis in ophthalmology?
Retinoschisis means splitting of the eye’s retina into two layers. There are two forms of this disorder. The most common is an acquired form that affects both men and women. It usually occurs in middle age or beyond, although it can occur earlier, and it is sometimes known as senile retinoschisis.
Is tigroid fundus normal?
How serious is retinoschisis?
Surgery: In extreme cases, retinoschisis can lead to complete retinal detachment, which is where the retina pulls away from the back of the eye. It can lead to the complete loss of vision, and surgery may be necessary to move the retina back into place.
Does retinoschisis need treatment?
There is no medical treatment for degenerative retinoschisis; however, vitrectomy surgery is occasionally required for complications related to either type of retinoschisis.
Can you go blind from retinoschisis?
Retinoschisis is characterized by a reduction in visual acuity. There may also be a loss of peripheral vision. Very few people become totally blind from either form of the disorder, but some men with the juvenile form may ultimately have very poor vision.
Can retinoschisis be cured?
Treatments. At this time, there are no cures available for X-linked retinoschisis. However, researchers have identified mutations in a gene on the X chromosome that cause juvenile retinoschisis.
Is retinoschisis rare?
Retinoschisis is responsible for less than 2.5% of all rhegmatogenous retinal detachments. Tractional retinal tears in retinoschisis are extremely rare. The hallmark feature of the disease is foveal schisis (retinal splitting) though over time this may become less distinct.
Is retinoschisis serious?
How serious is retinoschisis? Retinoschisis is typically a benign condition that causes no symptoms. In all types of acquired retinoschisis, either the inner layer or the outer layer, or both layers, may develop holes.
Is retinoschisis curable?
Is retinoschisis progressive?
With an incidence of 0.05% in patients with retinoschisis, an RD can progress beyond the borders of the schisis cavity with associated symptoms, which is designated as a progressive, symptomatic retinal detachment complicating retinoschisis (PSRDCR) [4].