What effect do cataracts have on vision?

What effect do cataracts have on vision?

• A. Double vision in all cases
• B. Improve night vision
• C. Scatter light and impair vision
• D. Increase color saturation

Answer: (C)

Cataracts cause clouding of the lens, which scatters light as it enters the eye. This scattering blurs images on the retina and lowers contrast, producing hazy vision and more glare—especially around lights at night. Because the light isn’t focused cleanly, visual acuity declines and colors may seem dull or slightly yellowed. This is why scattering light and impairing vision is the best description of the effect. Double vision isn’t a universal or typical result of cataracts, and night vision does not improve with cataracts (it often gets worse due to glare and scattered light). Colors aren’t increased in saturation; they usually appear less vivid.

Cataracts cause clouding of the lens, which scatters light as it enters the eye. This scattering blurs images on the retina and lowers contrast, producing hazy vision and more glare—especially around lights at night. Because the light isn’t focused cleanly, visual acuity declines and colors may seem dull or slightly yellowed. This is why scattering light and impairing vision is the best description of the effect.

Double vision isn’t a universal or typical result of cataracts, and night vision does not improve with cataracts (it often gets worse due to glare and scattered light). Colors aren’t increased in saturation; they usually appear less vivid.