What is Astigmatism?
A defect of an optical system (as of the eye) that prevents light from focusing accurately and results in a blurred image or unclear vision 1
References
- “Astigmatism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/astigmatism. Accessed 18 Dec. 2024.[↩]