retinal break


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retinal break

A break in the continuity of the retina, usually caused by trauma to the eye. Detachment of the retina may follow the appearance of the break.

retinal break 

A full thickness opening in the neurosensory retina. It may be a hole, usually due to atrophy of the retina and often overlaid by an operculum; or a tear, horseshoe-shaped (U-shaped), round or slit-like, usually caused by posterior vitreous detachment in which the vitreous adheres to the retina and pulls it from the point of adherence during or just after an abrupt eye movement; or a giant retinal tear which involves 90º or more of the circumference of the globe and is commonly associated with Marfan's syndrome or Stickler's syndrome; or retinal dialysis which is usually the result of trauma. The patient may complain of photopsia, seeing floaters or flashes and some visual field defects and they may present with a vitreous haemorrhage. Management of retinal breaks includes localized laser photocoagulation (laser retinopexy) or cryopexy, a method of cryotherapy (freezing of the tissues causing local protein denaturation which leads to adhesion of the retina to the pigment epithelium), as the defect may lead to rhegmatogenous or tractional retinal detachment. See macular hole; retinal dialysis; retinoschisis; Shafer's sign.
References in periodicals archive ?
They have some important characteristics such as optical clarity, permanent retention and chemical inertness but they are also associated with many complications such as poor contact with retina due to the hydrophobic nature, cataract, oil in anterior chamber, less tamponade effect in case of inferior retinal breaks, irreversible cell damage, postoperative retinal detachment etc [3].
If RD is secondary to retinal breaks outside the colobomatous area, it can be treated by scleral buckling; however, when the coloboma is etiologically responsible for RD5 management options are different6.
Scleral buckle alleviate vitreous and retina traction and causes the margins of retinal break to come close to underlying retinal pigment epithelium.
To evaluate the impact of these two surgical techniques on anatomic and visual recovery, only patients who met the following criteria were included in the analysis: the presence of RRD with retinal breaks associated with vitreous hemorrhage resulting from rupture of a peripheral retinal blood vessel and not obscuring the view of the fundus periphery (especially the retinal break region), optic disc and vascular structures (grade1- mild vitreous hemorrhage with visible fundus details).
Treatment should only be performed in exceptional cases such as enlargement into the foveal area, posterior layer retinal breaks, schisis-detachment and progressive, frank, symptomatic RD.
Study also aims to analyze characteristics of type of retinal breaks, other eye findings and etiological factors in pediatric RRD.
Both methods create points of adhesion surrounding the retinal breaks to prevent the flow of fluid (see Figure 2).
Configuration of Subhyaloid hemorrhage with size measured in disc diameter and location were noted, rest of the fundus was examined in detail to identify diabetic retinopathy hypertensive retinopathy, central retinal vein occlusion, branch retinal vein occlusion, posterior vitreous detachment and retinal breaks.
This represents a visual field defect arising due to the retinal detachment and one can be certain that the location of the retinal break is in the opposite quadrant to the location of the curtain.
If the most likely diagnosis is PVD, and in particular if there is pigment in the vitreous, or haemorrhage in the absence of diabetes or other vascular signs, then a methodical examination of the retinal periphery must be carried out to locate any retinal breaks.
However, optometrists should be aware that white without pressure can sometimes give the false impression of a retinal break.
A peripheral retinal break or tear is a full thickness retinal defect.