I think you've done the right thing. It's always a good idea to go back a bit earlier if you notice a decline in your vision. From my experience with my father, this is not an exact science. Doctors can't always tell exactly how long between injections is best for any one person. They often use the "treat and extend" method, where the time between injections is increased. Depending on how well that works, the time may stay the same, or be increased or decreased. I hope you go well at your appointment. Best wishes, Wendy, Patient Leader.