Site display: Normal | Text Only

My Collection | About Us | Teachers

Find objects

Select from more than one or two options below:

Objects search

Can't find what you're looking for? Try the search below.

Snellen's test type, United Kingdom, 1901-1930

Located at the back of this display is a chart of letters used to test a person’s sight at various distances. With good vision, the patient should be able to read the letters at a distance of six metres. The chart was developed in the 1850s by Hermann Snellen (1834-1908), a Dutch ophthalmologist, and is still used today. The letters, from largest to smallest, are all a precise shape and size. The board is shown here in a display of sight testing in the 1930s.

Object number:

1977-627/25

Related Objects

There are 717 related objects. View all related objects

 

Glossary:

Glossary: Snellen test types

Chart used for vision testing. The chart shows lines of black letters varying in size from large to small down the chart. Which a patient is asked to read. The optician is able to tell the level of the patient's eyesight when s/he can not read any further.