after my glaucoma surgery my eyesight changed within two weeks between two checkups so I had to get a totally different prescription in my glasses. Even with my new glasses I’m still having trouble reading anything written on paper and even my mobile. Any texts and emails I get I have to magnify them to a big size. I thorght that with my new prescription glasses I would see things a lot more clearly but that is not the case. I think that the sight I have now is what I’m going to have and there’s nothing I can do with that.When I asked the surgeon why such a dramatic change in my eyesight in such a short period of time he just said it can happen. Does anyone on here know why our eyesight changes after this type of surgery. I’ve had retinal surgery and they had to put my retina back on then cataract surgery the same year so my eyesight changed alot . After this surgery my eyesight has gone back to what it was before my retinal surgery. I wish I had a better idea of why this is the case.
sight changes: after my glaucoma surgery my... - Glaucoma UK
sight changes
I agree that to find both spectacle prescription to require alteration and even then that the standard of sight is down is very disappointing. I have experienced this before and am suffering it now, after my trab revisin in December. There are two chief causes. The front window of the eye, the cornea, is itself a lens the focus of which is determined by its shape. Surgery at its edge such as trab distorts it, and the immediate effect changes the prescription. As healing proceeds this distortion will change. The other cause is the effect of the phycical trauma of surgery and the possible harm done by the retrobulbar anaesthetic to the optic nerve. Rhis will reduce sight, and recovery can take months and never be complete. As the surgeon said - it can happen, and the likelihood is unpredictable. Except that an eye with advanced glaucomatous damage (optic nerve neuropathy) is more vulnerable. I'm afraid you just have to wait and see (as best you can!)
Thankyou for the reply I understand a bit more after you explained it to me. I’m hoping the sight I have will stay the same now but as you’ve said it’s a matter of wait and see. I was very shocked when this ghaappened as up to then my remaining eyesight was okay even though it was different every time I had to read the eye chart but for it to go down so quickly within two weeks was horrible. I always try to stay positive but sometimes it hits me and I’m a bit down for a bit then I pull myself together and thank god that I have some sight left so I can still work .
I was told to wait three months after surgery before getting a new prescription but in my experience vision was still changing then as I had to go back to the opticians after one month for a another new prescription. I think it took over six months for stability.
Also, I've recently noticed that I need different prescriptions for daytime and night-time. I find the daytime prescription makes my vision worse than wearing no glasses at night. Fortunately an older pair of glasses work well at night so I switch over to them.
These observations may not be useful to you though as our eyes have a different history and we all respond differently. I hope your eyes will improve further yet.
Hi Angel5454, I wonder how long after surgery you got your new glasses. My focus fluctuated quite significantly in the first couple of months after my trab last year. From being short sighted I went to being long sighted, and could read a lot of the eye chart without glasses. Then I went very short sighted and could read tiny print without glasses. To my great surprise, I was eventually able to use my pre-op glasses again after about three months. I got new glasses with just a tiny change in the astigmatism prescription about three and a half months after the op. I think I've been very fortunate. I'm sorry about your problems. I hope your eyes stabilise in due course.
I was told by the surgeon in December I could get new prescriptions so it was just short of three months.Like I’ve said it did help me see four lines and a fifth at a pinch so it was better than my old prescription . I went from +2 to a - minus 2. My eyesight has totally gone backward to what it was before my my retinal detachment and cataract surgery.Its taken a bit to get used to and I think my eyesight is where it’s going to me so I’ve got to get used to my new normal After my cataract surgery and new prescription glasses I could see further down the chart than I do now even with my high prescription glasses
Very upset 
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