I've noticed I can't see as far as I used to and am having a harder time reading the blackboard at school. What could be the cause of this?
user
I’m glad you’re noticing this, I think you should go see an eye doctor. I can’t really tell you what the cause is, but I can tell you that I’m worried that your vision is worsening.
assistant
I've noticed I can't see as far as I used to and am having a harder time reading the blackboard at school. What could be the cause of this?
user
It’s possible you have a problem with your vision, perhaps one that is not correctable with glasses. There are a few common diseases that can cause issues with your eyes and cause such problems:

-   Glaucoma causes buildup of fluid pressure within the eyeball. This causes the eyes to water excessively and have a hard time focusing.
-   Macular degeneration is a common cause of blindness. This is most common in older people, but it can happen at any age. The disease causes gradual deterioration of the macula, the part of the eye responsible for sharp, central vision.
-   Diabetic retinopathy occurs when the small blood vessels within the eye become weakened and burst. The retina is the layer of light sensitive tissue at the back of the eye that helps you see things clearly. It’s very delicate, so sometimes it can be damaged by any kind of damage to your blood vessels.
-   C
assistant
I've noticed I can't see as far as I used to and am having a harder time reading the blackboard at school. What could be the cause of this?