Could: 180 degree with -0.50(+0.50 @90) means you have with the role astigmatism. As we age the eye lid gets heavier and changes the cornea and eventually the person will have against the role astigmatism -0.50 @90 or +0.50@180). This means with age the astigmatism will balance off.
Answered 11/18/2012
5.5k views
14 doctors weighed in across 4 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question