Before revision: Negative relative accommodation (NRA) was proposed by Prof. Joseph Kearney of Oxford University in 1967 , is a measure of the maximum ability to relax accommodation while maintaining clear, single binocular vision.
After revision: In ophthalmology negative relative accommodation (NRA) was proposed by Prof. Joseph Kearney of Oxford University in 1967 as a measure of the maximum ability to relax accommodation while maintaining clear, single binocular vision.