Located in the retina are cells that are sensitive to light and some that pass nerve impulses to the brain. If the retina detaches from the back of the eye, vision is severely affected. There are various reasons why detachment occurs such as injury to the eye, myopia (short-sightedness), eye surgery, diabetic retinopathy, glaucoma or eye tumours. Given that retinal detachments can seriously impair vision, it is vital that professional medical attention is provided immediately, if any of the following retinal detachment symptoms are experienced. Symptoms may include flashes, floaters, shadows that affect peripheral vision and a curtain effect across the field of vision.

Flashing Lights

Flashes are impressions of bright lights at the field of vision border, normally affecting one eye at a time. When the vitreous humour, the clear gel within the eyeball shrinks or tugs the retina, the resulting pressure applied to the retina nerve cells causes the flashes. If the pulling is strong enough, the retina can detach or tear. A visit to the relevant medical professionals is essential if these flashes increase in number or incidence.

Floaters

Floaters are tiny black dots, lines or cobweb-like shapes that may appear in the field of vision. This debris floats around in the vitreous humour. If the floaters increase in number or if floater numbers increase added to new flashes, an eye examination should be carried out immediately, as these symptoms indicate an increased chance of a retinal tear or detachment.

Field Of Vision Changes

If the retina detaches from the back of the eye, changes to the field of vision will occur that correspond to the area of the retina affected. This frequently will resemble a curtain or shadow moving into the field of vision, usually entering from the top or from the side. Once again, if these symptoms are experienced, an immediate eye assessment is vital.

Although rare, a retinal detachment may occur without warning, so any signs of sight impairment should be investigated.

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