Retinal detachment is a disorder of the eye in which the retina separates from the layer underneath. Symptoms include an increase in the number of floaters. 1. Ned Tijdschr Geneeskd. Sep 11;(37) [Ablatio retinae]. [Article in Dutch]. Hagedoorn A. PMID: ; [Indexed for MEDLINE]. MeSH terms. Ophthalmologe. Jan;(1) doi: /s [ Surgical technique in rhegmatogenous ablatio retinae]. [Article in German]. Heimann.
|Published (Last):||1 April 2018|
|PDF File Size:||3.23 Mb|
|ePub File Size:||12.76 Mb|
|Price:||Free* [*Free Regsitration Required]|
Facts about retinal detachment. Scar tissue eventually forms and seals the opening.
[The electroretinogram in ablatio retinae].
The scar may be produced by heat, laser energy, or cold. Involvement of the macula portends a worse prognosis. Freund KB, et al.
Advertising revenue supports our not-for-profit mission. Retinal detachment describes an emergency situation in which a thin layer of tissue the retina at the back of the eye pulls away from the layer of blood vessels that provides it with oxygen and nutrients.
If the condition is discovered early when the hole is small and the volume of vitreous humor lost is not large, the retinal hole may be closed by causing a scar to form on the choroid and to adhere to the retina around the hole. Pneumatic retropexythe most recently developed treatment, consists of injection of air or gas into the posterior vitreous cavity, followed by positioning of the patient so that the bubble rises, presses retinse the area of torn retina, and pushes ertinae back into its normal position against the choroid.
The buckle remains in situ. Vitrectomy with laser and pneumatic retinopexy are occasionally employed as an alternative treatment. Blindness abpatio from retinal detachment is irreversible. Other lenses may be used to examine the back of the eyes.
Bringing the retina close to the scar can be done in two ways. The person may also notice a curious sensation of flashing lights as the eye is moved.
The onset of symptoms may be gradual or sudden, depending on the cause, size, number, and location of retinal holes. American Society of Retina Specialists. Extensive detachment threatening central vision requires surgical treatment. Retinal tear, which may be caused by vitreous traction, and results in vitreous fluid accumulation. May be caused by viral infections such as feline panleukopenia, bluetongue, bovine virus diarrhea and canine herpesvirus; an inherited defect in some breeds of dogs and cattle.
This procedure is usually combined with cryopexy or laser photocoagulation. Injury to the eye can simply knock the retina loose.
[Vision and ocular tension in ablatio retinae].
Scleral buckle surgery is an established treatment in which the eye surgeon sews one or more silicone bands or tyres to the sclera the white outer coat of the eyeball.
Archived from the original on 28 July The person perceives a shadow that begins laterally and grows in size, slowly encroaching on central vision.
In diseases such as diabetes, with a high incidence of retinal disease, routine eye examinations can detect early changes. Retinal detachment separates the retinal cells from the layer of blood vessels that provides oxygen and nourishment. The incidence of retinal detachment in otherwise normal eyes is around 5 new cases inpersons per year.
Small tears in the retina allow liquid to seep behind the retina and push it forward. Current Opinion in Ophthalmology. A minority of retinal detachments result from trauma, including blunt blows to the orbit, penetrating trauma, and concussions to the head. A tiny belt tightened around the eyeball will bring the sclera in until it reaches the retina. The first symptoms may be flashes, lightning or black specks from haemorrhage.
The first symptom is often the sudden appearance of a large number of retiae spots loosely suspended in front of the affected eye.
In some cases, such as vitreous hemorrhage, the surgeon performs a combined vitrectomy and humoral retinal repair. Scarring or shrinkage of the vitreous can pull the retina inward. It involves the removal of the vitreous gel and is usually combined with filling the eye with either a gas bubble SF 6 or C 3 F 8 gas or silicone oil PDMS.
The main causes are proliferative diabetic retinopathy, retinopathy of prematurity, sickle-cell retinopathy and perforating ocular injury. Posterior vitreous detachmentinjury to the eye, inflammation of the eye, short sightedprevious cataract surgery . A disadvantage is that a vitrectomy always leads to ablstio rapid progression of a cataract in the operated eye.
Retinal detachment itself is painless. National Institutes of Health.
The most common side effect of a scleral operation is myopic shift. Retinal detachment is a disorder of the eye in which the retina separates from the layer underneath. abatio
Persons suffering from diabetes have a high incidence of developing retinal disease. Encircling buckles are indicated for breaks covering more than 2 quadrants of retinal area, lattice degeneration located on more than 2 quadrant of retinal area, undetectable breaks, and proliferative vitreous retinopathy.
The purpose of the surgery is to remove vitreous that is ablahio because of accumulated blood, and to stabilize the retina in apposition to the choroid. Retrieved July 26,