Q. What is a cataract?

A cataract is a clouding of the eye’s naturally clear lens, which sits behind the iris and pupil. As the eye ages, proteins in the lens break down and clump together, scattering light instead of letting it pass cleanly to the retina. This differs from presbyopia, a normal age-related stiffening of the lens that affects near focus starting around age 40 to 45. Both are part of ageing, but cataracts progressively degrade vision quality in a way presbyopia does not.

Q. What are the symptoms and signs of a cataract?

• Blurry, cloudy, or hazy vision that does not improve with a new glasses prescription
• Increased sensitivity to glare, especially headlights while driving at night
• Colors appearing faded, yellowed, or less vivid than before
• Frequent changes in glasses or contact lens prescription over a short period
• Double vision or ghosting in one eye
• Difficulty reading or doing close work even with adequate lighting

Q. When should I see a doctor in Seoul?

Schedule an eye exam if blurred vision is affecting driving safety, if glare makes night driving hazardous, if reading or screen work has become difficult despite correction, or if double vision persists. Sudden vision changes always warrant urgent evaluation. Residents of Guro, Gasan, or Gwanak experiencing these signs should not wait for their next routine check-up.

❓ Frequently Asked Questions

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