What Causes Dizziness And Nausea While Suffering From Cataract?

I was recently diagnosed with a tiny cataract in the center of my right eye. Because it is located right at the focal point of the vision in that eye, it is causing blurriness and shadowing. Then, yesterday, I noticed that when I m on my computer for a little while I start getting woozy, dizzy, nauseated. Is this a common symptom? I ve always been sensitive to motion sickness and I don t know if this is related to that or not. I was hoping to put off having surgery until my vision gets noticeably worse but now I m not sure if I can do that. I use my computer a lot because I make digital art. Hmmm...