Sudden Painless Loss of Vision (LOV)

A sudden loss of vision doesnt necessarily mean total blindness. Sudden blindness can occur in one eye or both eyes, and the loss of sight can be partial or total.

With total vision loss, the sight in the affected eye (or eyes) is lost completely, so that nothing can be seen with the affected eye. With partial vision loss, some sight may remain in the affected eye.

Sudden vision loss can include a sudden loss of peripheral vision, sudden loss of central vision, or even a sudden blurring of your vision. The sudden appearance of spots within your field of vision could also a symptom of a more serious condition.

Sudden blindness may only last a short time, such as a few seconds, minutes or hours. However, it could potentially be permanent, especially if not treated quickly.

What are the Causes

Sudden loss of vision can occur for a number of reasons. Many underlying problems are very serious, and could potentially be sight-threatening or even life-threatening. Its therefore essential to seek medical help as soon as possible if you experience any sudden loss of sight.

  • Damage to the retina
    The retina is the focusing surface at the back of your eye. Any damage to your retina, such as a detached retina or macular hole, is a possible cause of sudden blindness.
  • Vitreous haemorrhage
    Some eye conditions can cause blood to leak into the vitreous gel within the eye. This is known as a vitreous haemorrhage. If this occurs, it can block the light which enters the eye, causing sudden blurred vision, or the sudden appearance of spots within your vision.
  • Vitreous haemorrhage is more common in diebetic and hypertension patients in comparison to the normal people.

  • Serious medical conditions There are some serious medical conditions that can cause sudden blindness, such as a stroke or brain tumor. While these causes are quite rare, it is nonetheless important to seek medical attention as soon as possible.