Final answer:
Age-related changes in the human eye include loss of flexibility in the lens, elongation of the eyeball, and thinning of the retina. These changes can result in conditions like presbyopia and cataracts.
Step-by-step explanation:
As people age, there are several age-related changes that occur in the human eye. One common change is the loss of flexibility in the lens, which makes it difficult to focus on close objects and causes the need for reading glasses. Another change is the elongation of the eyeball, which can cause images to focus in front of the retina, resulting in blurry vision. Additionally, the retina may thin with age, making vision more difficult. These age-related changes can lead to conditions like presbyopia and cataracts.