Lea Number Low Vision Distance and Near Test

Primary Application: The Lea Number Low Vision Distance and Near Test is designed for examining children and adults with severe visual impairments.

Features:

• This complete book includes testing for 10 ft (3 meters), 5 ft (1.5 meters), and 16in (40 cm) near vision.
• Distance testing line sizes range from 20/1600 to 20/16 equivalent.
• Near vision testing line sizes range from 20/800 to 20/16 equivalent.
• When comparing visual acuity results with ETDRS, study results suggest the LEA Numbers Low vision Book has a slight advantage over the Feinbloom chart when testing individuals with vision impairment