Poor eyesight : 20/400 vision means that you see at 20 feet what others can see at 400 feet. There are many people with 20/400 vision. However, they can be corrected to 20/20 with glasses or contacts. If your vision is 20/400 and cannot be corrected, it means you have poor eyesight and are legally blind.
Answered 3/21/2015
3.1k views
2 doctors weighed in across 2 answers
4 doctors weighed in across 3 answers
A doctor has provided 1 answer
3 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question