NNVisitor , New Glasses Trouble The distortion is caused by three things.
The power of the glasses, your astigmatism correction and because the front of the lens is flat instead of curved the distortion is much worse.
Distance has been the clearest I've ever remembered! The lens are a regular 1.50 index so there is decent thickness to them and they stick out of the frame quite a bit with plenty of power rings and the lined bifocal is pretty obvious as well!
I'm hooked and already thinking about another order with more minus.
Even though I wanted to so bad I was reluctant to wear them outside of the house.
My own prescription is somewhat similar to yours and I also wound up with a large prescription increase because I waited years before getting new glasses. How many years have you noticed having double vision? If you have worn your new glasses for over a week or two weeks and you feel you cannot adjust to them they can redo the glasses for the same prescription using a curved front and a more curved backside of the lenses.
My increase was large but yours is an even greater increase. May I ask how long you have now been wearing your new glasses? They may not want to and will say the prescription is correct.
If you are unhappy with these glasses then you should adamantly stand up for your rights and say that you did some research and found out that the base curve used is causing your problems and that the glasses are impossible to adjust to.
After several pairs and half a decade at age 39, I found myself able to accommodate over correction of minus but when doing so close vision became increasingly poor.
So..actual prescription: OD: -4.25 -0.25 109 OS: -4.75 -0.50 171 My glasses I've worn for the past couple years: OD: -5.00 -0.25 109 OS: -5.75 -0.50 171 And now..latest that I received from Firmoo yesterday: OD: -6.50 -0.25 109 OS: -7.00 -0.50 171 1.00 read Vision is perfect! Bifocals we're easy to adjust to as they sit on my face now and I'm looking thru the add portion of the lens as I write this on my mobile device.