The document explains that magnifiers are convex lenses used to create magnified images and are essential for individuals with low vision who cannot perform daily visual activities without assistance. It outlines five types of magnifiers: spectacle magnifiers, hand magnifiers, stand magnifiers, telescopic magnifiers, and electronic magnifiers (CCTV). The information highlights the role of these devices in enhancing residual vision for those with irreversible visual disorders.

1. MAGNIFIERS
MEGHNA VERMA

2. •
• A magnifying glass is a convex lens that is used to produce a
magnified image of an object.
• The lens is usually mounted in a frame with a handle.
• A low vision refers to an optical device that improves or
enhances residual vision by magnifiers.
• A patient with a low vision is a person who because of an
irreversible disorder of the visual system can not perform
customary visual activities without the special vision
enhancing devices.

3. TYPES OF MAGNIFIERS -
• Magnifiers, currently available are of 5 types –
1. Magnifying spectacles / spectacle magnifiers
2. Hand magnifiers
3. Stand magnifiers
4. Telescopic magnifiers
5. Electronic magnifiers (CCTV)

4. SPECTACLE
MAGNIFIERS –

9. HAND – HELD
MAGNIFIERS –

13. STAND
MAGNIFIERS –

18. TELESCOPIC
MAGNIFIERS –

25. CLOSED – CIRCUIT
TELEVISION (CCTV) –

30. THANKING
YOU....