Everything you need to know about low vision

The low vision range is between the lower maximum limit 6/18 (0.3) and the lower limit greater than 3/60 (0.05), according to the Snellen scale. As for the range of the visual field, it is between the lower maximum limit of 20º and the upper limit of 10º. While the term blindness. It is conceived as the state characterized by the operative absence of vision and ranges from 0.05 to non-perception of light, or a visual field restriction of less than 10 ° around the fixation point. 

 It is is the degree of partial vision that allows its use as a primary channel for learning and obtaining information and limits the capabilities of people when doing daily activities, but requires simple adaptations to be able to carry out some of them: read in ink with optical aids or with enlargements. The rest of the vision is sufficient to recognize objects or to be oriented with the view, but there are difficulties in reading and distinguishing sizes and images at normal distances, even if they wear glasses or contact lenses.

Problems people commonly face

A person suffers from low vision when he does not see the quality that allows him to handle daily independently, that is: not being able to correctly read the posters presented to him on the street, in public places, transport; difficulty in distinguishing colors to buy clothes, to dress; with some regularity stumble over curbs, furniture; read books, newspapers, panels, computer, mobile phones with difficulty; not seeing closely to cook, to do chores at home; Do not recognize known people. People with low vision are unable to correct their deficiency with glasses or contact lenses,

At present, there are more and more elderly patients who, for whatever reason, pathology or surgery, have their visual acuity diminished to very low values.

We consider it as a decrease in visual functions, not recoverable by treatment and / or refractive correction. If a professional in charge of your eye care tells you that your vision cannot be fully compensated with common prescription glasses, medical treatment or surgery and if you still have some usable vision, you have what is called low vision.

Low vision patients are considered to be those whose visual acuity is between 0.05 and 03 in the best eye and / or a visual field of less than 20 in the best eye. These patients maintain a useful vision which is called Visual rest. This visual rest can be improved or enhanced by adapting optical and non-optical aids and subsequent visual rehabilitation so that these patients can re-develop at least some of the abandoned tasks.