Patients with night blindness, also known as nyctalopia, have difficulty seeing at night or in dimly lit conditions. Night blindness can be a complication of myopia or retinal problems.
Glaucoma occurs when fluids in your eyes are unable to drain properly, increasing the pressure inside your eyes. Eventually, this increased pressure leads to optic nerve compression, compromising your vision. Without treatment, glaucoma can cause irreversible vision loss.