Welcome Esen and Amy!
My son just turned 4 and we think he has OCA1B because he has gained some pigment since he was born. He first developed nystagmus around 7 weeks and his pediatrician noticed it at his two month check up. We then saw a pediatric ophthalmologist who confirmed the diagnosis of albinism. Like I tell all new parents I talk to, you will be amazed at your children and their abilities. Their eyesight may just not be as good as some, and they will need susncreen for their fair skin and sunglasses/hats for the light sensitivity. Other than that, Zachary is completely "normal."
With regard to patching, we just had this discussion in another thread. You may want to try a search for patching and see what other threads come up. My son also has a lazy eye, and when he was about 1 the doctor wanted to start patching him. Because Zach wouldn't keep the patch on, we switched to Atropine drops which blur the vision in the good eye for several hours so that he will choose to use his weaker eye and thereby strengthen it. The frequency of which we have used the drops has varied in the last couple years, depending on how much worse the vision is in his bad eye than his good eye. Right now we only use it once a week. I would definitely defer to a pediatric ophthalmologist for advice on when and for how long to use the patch, though every one of them may tell you somehting different and have their own opinion. Esen, I don't know if you have any pediatric ophthalmologists in your area, but I would try and see one of them for their advice if you haven't already.
Welcome to NOAH, and never be afraid to post your questions/concerns/successes. We are all in the same boat, just at different places in our journeys as parents of children with albinism.