The Letter Chart

The letter chart test fine-tunes the prescription estimated by the previous retinoscopy.

During this test the Optometrist will show you a choice of lenses and using portable illuminated test charts along with trial lenses/frames, they will decide which lens makes your vision clearer.

Based on your answers, the optometrist will be able to determine which exact prescription is best for you.
The letter test tells the Optometrist how long-sighted or short-sighted you are.

For help and advice about testing and eligibility call us on freephone 0800 854477