Final answer:
Cortical cataracts affect the outer edge of the lens and can cause blurred vision, glare, and difficulty seeing in bright light. They also affect color perception and contrast sensitivity.
Step-by-step explanation:
A cortical cataract is a type of cataract that affects the outer edge of the lens of the eye, known as the cortex. Its clinical presentation includes the gradual development of white opacities in the lens, which can cause blurred vision, glare, and difficulty seeing in bright light. Additionally, cortical cataracts can cause changes in the perception of color, with decreased contrast sensitivity and increased light scattering.