Final answer:
People over 40 years of age are at the highest risk for glaucoma and its complications.
Step-by-step explanation:
The group that is at the highest risk for glaucoma and its complications is people over 40 years of age. Glaucoma is a condition characterized by increased intraocular pressure, which can cause damage to the eye if left untreated. Routine testing of intraocular pressure is recommended for individuals in this age group to detect and control excessive pressures effectively.