Your brain needs more stimulation to register sensations, and that threshold rises with age. The older you get, the more input you need to understand your surroundings.
Aging affects all eye areas. Increasing corneal sensitivity and damage risk. Additionally, the pupil reacts more slowly to light and darkness.
Hardening the lens alters light entry. Degeneration of ocular muscles affects eye rotation.
Protect your eyes with UV and UVB sunglasses. Use goggles to protect your eyes from liquids, unpleasant mists, fumes, and chemical splashes.
Research shows that a diet high in fruits and vegetables and low in fat and cholesterol can prevent vision loss.
Brighter lighting in your house and reading lamps can improve your vision.
In environments where you must yell to be heard, wear ear protection. This applies even without hearing loss.
Wax buildup grows with age, therefore removing it can greatly improve hearing.
Reduce hearing-impairing noises. For instance, switch off the TV or down the music when talking.