Low vision is reduced vision that cannot be improved by further changes to spectacles, contact lenses or by surgery. The vision loss can be stable or deteriorating.
The loss in vision can be in the central vision affecting reading, writing, seeing faces, watching TV, etc. This may be caused by a number of conditions
including macular degeneration. Another type of vision loss is the difficulty with peripheral vision or visual fields. This can be caused by glaucoma,
diabetes, retinitis pigmentosa, etc.