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Low vision Aid

Low vision Aid

Definition Low-vision devices are designed to improve visual performance in children with low vision, thus enabling academic and social adaptation and providing enrichment of daily experiences.1,2 They can be optical or optical and electronic. Types of Devices Optical When conventional lenses do not provide required visual range, aids that have optical properties capable of promoting better visual performance through lenses are indicated.2 Types of optical aids for Distance Intermediate distance Near Optical Aids for Distance and Intermediate Distance The telescopic system (TS) or telescope is an optical instrument that improves the resolution of an object by increasing the size of the image projected on the retina, making it closer. (Faye, 1984)

Types of Telescopes (Figure 2) Galilean or Keplerian Hand-held, spectacle-mounted, or clip-on Monocular or binocular Fixed focus, focusable telescope, or autofocus

Hand-Held, Spectacle-Mounted, or Clip-On Telescope A hand-held telescope is simpler, lighter, and cheaper than the Galilean and Keplerian types. It is particularly indicated for short activities and could be a first prescription choice for children (Figure 2).

Low-Vision Aids

Definition : Low-vision devices are designed to improve visual performance in children with low vision, thus enabling academic and social adaptation and providing enrichment of daily experiences.1,2 They can be optical or optical and electronic.

Types of Devices : Optical When conventional lenses do not provide required visual range, aids that have optical properties capable of promoting better visual performance through lenses are indicated.2

Types of optical aids for

Distance, Intermediate distance, Near

Optical Aids for Distance and Intermediate Distance The telescopic system (TS) or telescope is an optical instrument that improves the resolution of an object by increasing the size of the image projected on the retina, making it closer. (Faye, 1984). It is available for far, near, and middle distances (Figure 1).

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