Life Sciences Paper 1, November 2024, question 2.3.1

Read the passage below. EYE DISORDERS IN OLDER ADULTS Glaucoma is a group of conditions in which pressure builds up inside the eye and damages the optic nerve. It is a leading cause of permanent vision loss in adults over 60 years of age. Two types of glaucoma are open-angle glaucoma and renal-linked glaucoma. In open-angle glaucoma, fluid drains too slowly from the eye and pressure rises gradually over many years. In renal-linked glaucoma, pressure rises because the kidneys fail to remove excess fluid and salts from the blood, and it is most common in people with chronic kidney disease.