The way it works over here is that we can get our eyesight checked every year for free and most opticians will do such a free test when you want to get new glasses, just to check if your sight has worsened. Mine got a tiny bit worse, just a minuscule amount, but I am glad that I’ll get completely new glasses adjusted perfectly to balance it out. Basically, I only needed a prescription for the first time I ever got glasses at age 15 - everything else is taken care of by my optician of choice. I’ve found a new one last month thanks to a flyer for a sale and so I will also save a good amount on my new glasses. 😄