Retinal detachment Synonyms Detached retina photograph showing retinal detachment. Slit lamp Specialty Ophthalmology Symptoms Increased number of , floaters , worsening of the flashes of light of the outer part visual field   Complications Permanent loss of vision  Usual onset 60s and 70s  Causes separates from the Retina layer underneath  Risk factors , injury to the eye, inflammation of the eye, Posterior vitreous detachment , previous short sighted surgery cataract  Diagnostic method , Eye exam ultrasound   Treatment , Scleral buckling , pneumatic retinopexy vitrectomy  Prognosis Generally good if treated early   Frequency ~1 per 10,000 per year  Retinal detachment is a disorder of the in which the eye separates from the retina . layer underneath Symptoms include an increase in the number of  , floaters , and worsening of the flashes of light of the outer part . visual field  This may be described as a curtain over part of the field of vision.  In about 7% of cases both eyes are affected.  Without treatment permanent  may occur. loss of vision 
The mechanism most commonly involves a break in the retina that then allows the
to get behind the retina. fluid in the eye A break in the retina can occur from a  , injury to the eye, or inflammation of the eye. posterior vitreous detachment Other risk factors include being  and previous short sighted surgery. cataract Retinal detachments also rarely occur due to a  . choroidal tumor Diagnosis is by either looking at the back of the eye with an  or by ophthalmoscope . ultrasound  
In those with a retinal tear, efforts to prevent it becoming a detachment include
using a cold probe or cryotherapy using a laser. photocoagulation Treatment of retinal detachment should be carried out in a timely manner.  This may include  where scleral buckling is sutured to the outside of the eye, silicone where gas is injected into the eye, or pneumatic retinopexy where the vitrectomy is partly removed and replaced with either gas or oil. vitreous 
Retinal detachments affect between 0.6 and 1.8 people per 10,000 per year.
About 0.3% of people are affected at some point in their life.  It is most common in people who are in their 60s or 70s.  Males are more often affected than females.  The long term outcomes depend on the duration of the detachment and whether the  was detached. macula If treated before the macula detaches outcomes are generally good.   
Signs and symptoms
A rhegmatogenous retinal detachment is commonly preceded by a
which gives rise to these symptoms:
posterior vitreous detachment
flashes of light (
) – very brief in the extreme peripheral (outside of center) part of vision photopsia a sudden dramatic increase in the number of
floaters a ring of floaters or hairs just to the (skull) side of the central vision temporal
Although most posterior vitreous detachments do not progress to retinal detachments, those that do produce the following symptoms:
a dense shadow that starts in the peripheral vision and slowly progresses towards the central vision
the impression that a veil or curtain was drawn over the field of vision
straight lines (scale, edge of the wall, road, etc.) that suddenly appear curved (positive
test) Amsler grid central visual loss
In the event of an appearance of sudden flashes of light or floaters, an eye doctor needs to be consulted immediately.
A shower of floaters or any loss of vision, too, is a medical emergency.