Vyvanse is a central nervous stimulant; it can cause high blood pressure in some individuals and blurred vision is a symptom of dangerously high blood pressure. Discontinue use and consult a medical professional as soon as possible.
Other non-stimulant drugs could be used. See related questions.
I'm worried that it might be causing mine.
An astigmatism means that the shape of the optics cause the focus to be a line rather than a point (the lenses are not spherical). Thus the image produced by these lenses is imperfect, causing a blurred image/vision.
can cortisone injection cause blurred vision
The first symptoms are headaches, blurred vision, excessive urination, fatigue and blurred vision.
Pituitary gland cancer can cause headaches and blurred vision.
Glasses.
My vision becomes blurred.
tears blurred her vision as she began to cry.
YES
yes
Blurred Vision - 2005 was released on: USA: 1 April 2005 (Cinequest Viewers' Voice Awards)
No. It has absolutely no effect on vision. Genetic factors affect vision. Also, straining your eyes (i.e reading in dim lighting) will cause your eyes to work harder than they need to, thus worsening your vision.