A detached retina may cause someone to see floaters, flashes of light or darkened peripheral vision. Patients do not experience pain with a detached retina, states WebMD.
The symptoms of retinal detachment nearly always occur before the condition happens or has advanced. Floaters are small pieces of debris that appear in a person's vision. They look like hairs, strings or spots that are floating in front of the sufferer's vision. The darkening of the person's peripheral vision may look like a curtain or shadow has been pulled across his field of vision. This symptom indicates that the detachment has progressed. It is recommended that people who experience any of these symptoms seek medical attention immediately because a detached retina is an emergency situation, explains Mayo Clinic.
Retinal detachment occurs when the retina becomes separated from the underlying tissue in the eye. This condition often happens because of a tear, break or hole in the retina. One in 10,000 people experience retina tears every year, but many of these cases don't progress to detachment. People who have cataract surgery, experience eye trauma or have certain eye diseases, such as lattice degeneration, high myopia (high nearsightedness) or uveitis (chronic eye inflammation), are at the highest risk of having retina detachment, says MedicineNet.