VISUAL FIELD LOSS

VISUAL FIELD

The visual field refers to the space area where we can see all that surrounds us. This area has its limits: nasal, temporal, upper and lower ones and the range of this visual field reveals the health condition of the optic nerve as well as the optic tract, from the eye to the brain visual areas, which are placed in its occipital zone.

WHAT PATHOLOGIES CAN LEAD TO A VISUAL FIELD LOSS?

The visual field may be affected by several neurologic, optical nerve, and also retinal diseases like, for instance, pigmentary retinitis.

A particular loss of visual field occurs due to glaucoma. Glaucoma is an optic neuropathy that takes place mainly (but not compulsorily) due to an increase of intraocular pressure. This tension rising may damage the nerve fibre layer, and therefore, the optic nerve causing a visual filed disorder which deteriorates progressively reducing itself concentrically and which can end up in blindness.

WHAT CAN I DO IF I NOTICE A VISUAL FIELD LOSS?

Faced with a visual field loss, it is absolutely necessary to go to the ophthalmologist’s as soon as possible. Often, a visual field loss is pretty slow and silent and because of this, it is advisable to be seen by the doctor from the age of 40 onwards in order to check the pressure, the optic nerve and the retina condition.

Prevention is the best weapon to fight glaucoma for there exist effective treatments to reduce the intraocular pressure, above all, when the problem is caught in early stages.