Reduced vision (or low vision) corresponds to a number of conditions. It is a visual disorder in which the reduction of the vision is not complete, so does not correspond to blindness, but results in permanent decrease in acuity of the visual field of an individual.

The reduction of views may coincide with a general reduction (or sharpness) visual, but can also occur in more specific forms, such as the loss of central vision, peripheral, or side vision, also conditions like blurred vision.

Unlike normal vision problems such as nearsightedness and farsightedness, vision loss cannot be overcome by using tools such as glasses or contact lenses.

The view may drop as a result of different conditions and injuries, but definitely the age is a major factor. Related macular degeneration, glaucoma and cataracts are the most common causes of vision loss in age of 45, with a high prevalence after 65 years.


What kind of diseases can be associated with reduced vision?

The following diseases may be associated with reduced vision:

  • Albinism
  • Amblyopia
  • Astigmatism
  • Cataract
  • Keratoconus
  • Retinal detachment
  • Glaucoma
  • Herpes simplex
  • Ophthalmic herpes zoster
  • Stroke
  • Farsightedness
  • Systemic lupus erythematosus
  • Myopia
  • Optic neuritis
  • Presbyopia
  • Retinitis pigmentosa
  • Retinoblastoma
  • Diabetic retinopathy
  • Rubella
  • Down syndrome
  • Strabismus
  • Toxoplasmosis
  • Corneal ulcer

Remember that this is not an exhaustive list and it is highly recommended to consult your doctor, in case of symptom’s persistence.


What is the therapy for reduced vision?

The remedies for this condition are very different depending on the type of disease.

Some causes responsible for the vision loss can be treated, such as diabetic retinopathy. In the case of cataract, it is possible to resort to surgery and replacement of the crystalline lens with an artificial one.

In most cases, the patient must have use specific instruments, such as glasses that allow magnification, magnifying lenses or lenses with filters for the light.

In severe cases you need to refer to an ophthalmologist or to a specialized center to get the appropriate treatment.


When is most likely to contact your doctor in case of reduced vision?

You should know the evolution of the disorder so you can assess the need to resort to medical care. If the loss of visual acuity is sudden and abrupt, occurs with the presence of a dark spot (scotoma) that prevents a comfortable view, it is necessary to appeal promptly to emergency care or to an emergency room.