Hi there
Yes, me! About two weeks after starting treatment for my CML on dasatinib, I was watching TV and suddenly I heard a gentle “pop” in my head, followed by a moment of complete blindness. Immediately after this, it was like a spider’s web of blood trickling over my left eye, which seemed to disperse, and then I had a large, kidney-shaped spot right in front of my central vision. I couldn’t see a thing in front of me except this red spot. Vision in my right eye fortunately remained normal.
Of course I freaked out and arranged for someone to take me to the emergency room where, as luck would have it, an ophthalmologist was on duty. He examined my eye with that special machine that produces a laser image of the eye, and noticed that I had no fewer than FOUR eye bleeds on the retina – there were no bleeds in the front of my eye, but four in the back! Unfortunately this latest one was smack-bang in my line of vision.
When I told him that I had CML, he said that it made sense to have these bleeds. Apparently one’s blood becomes thick when there are so many white blood cells and that causes the tiny capillaries in the eye to burst, leading to these retinal bleeds. They can apparently be divided into various groups, such as “flame-shaped” or “boat-shaped”, and there are also certain spots called “Roth spots” that are common in leukemia patients. I have done extensive research online about this topic and there is an article called “The many faces of a retinal haemorrhage” that provides detailed and useful information. My ophthalmologist said he thought it was caused by the CML itself and not by the dasatinib, and he said that many patients are diagnosed with CML after a routine ophthalmologic examination because the eye bleeds are a sign of CML! I don’t have any experience with imatinib, though, and I know it can itself cause eye bleeds, but from what I have read, these bleeds are more often in the front of the eye and it’s quite unlucky to get them on the retina.
It’s now eight months since the eye bleed and I still have distorted vision. The bleed has cleared immensely, however, and I would say it’s 99% gone – but man, did it take a long time. I even had a minor road accident because of it – looking in my rear view mirror, I missed a stationary motorcycle right behind me because the red spot was covering it and I hit it, fortunately without a lot of damage. My doctor said that the bleeds resolve over time in most cases as they are reabsorbed by the eye. He did offer me the choice of seeing a retinal specialist, who can apparently drain the blood with laser surgery, but the procedure is risky as the retina is primarily composed of nerves, so a small mistake by the surgeon can result in permanent loss of vision. Don’t be surprised if it takes over six months to reabsorb!
I hope that helps a bit. Good luck!
Best wishes
Martin