Central vision loss can occur when a person suffers from age-related macular degeneration and/or diabetic retinopathy. It starts with a small dark spot in the centre of the vision that gets larger over time. Central vision loss can progress very quickly. If this happens, you should consult an eye doctor for an evaluation immediately.
Other causes of central vision loss include cataracts, macular degeneration and holes as well as complications from conditions such as multiple sclerosis. In some cases, central vision loss can be the result of brain tumours or aneurysm. This type of vision loss involves loss of sight in the central area of the visual field and may affect one or both eyes depending on the contributing cause. Treatment depends on the causative condition.