Posterior subcapsular cataract can cause a rapid loss of central vision owing to its position in the visual axis. Another slit-lamp-based cataract-grading system is the Oxford Clinical Cataract ...

is "nuclear" cataract. “Nuclear” refers to the central portion of the lens, called the nucleus. "Cortical" refers to the lens cortex, which is the peripheral (outside) edge of the lens. "Posterior" is ...

The Mayo Clinic explained that nuclear cataracts impact the middle of the lens while posterior subcapsular cataracts develop ...