Final answer:The conditions presbyopia, glaucoma, presbycusis, and tinnitus match the descriptions of reduced lens elasticity affecting close vision, increased intra-ocular pressure, age-related hearing loss, and ringing in the ears, respectively.Explanation:Match the age-related disorder with its description:a) Reduced lens elasticity; close-vision reduced - This condition is known as presbyopia, which is a vision problem associated with aging, where the eye gradually loses its ability to focus on close objects. This happens because the lens may become less elastic with age, and the muscles that control the lens lose power.b) Increased intra-ocular pressure - This is a description of glaucoma, a group of eye conditions that can cause blindness. In someone with glaucoma, the drain space between the iris and cornea becomes too narrow, which can cause a buildup of pressure in the eye.c) Hearing loss due to age-related degeneration of auditory pathways - This condition is known as presbycusis, which is an age-related sensorineural hearing loss resulting from degeneration of the cochlea or associated structures of the inner ear or auditory nerves.d) Ringing in the ears - Also known as tinnitus, this condition can be caused by a range of issues, including age-related hearing loss, and involves hearing noise (such as ringing) that isn't caused by an external source....

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