Sharpness of vision (visual acuity) gradually declines and eventually bifocals are need. One may be less able to tolerate glare, and may have more trouble adapting to darkness or bright light. The fluid inside eye may change. Small particles can create "floaters" in the vision not a dangerous condition. However if someone suddenly develop floaters or have a rapid increase in the number of them, she should have checked her eyes by a professional. Common eye disorders in the elderly include cataracts (progressive opacification and hardening of the lens of the eye, glaucoma (increased pressure in the eye, if left untreated may.
