白內障: Symptoms, Causes, and Treatment Options
Wiki Article
白內障 is a common eye condition that occurs when the natural lens of the eye becomes cloudy. It is one of the leading causes of vision impairment worldwide, particularly among older adults.
Common Symptoms of 白內障
Blurred or cloudy vision
Difficulty seeing at night
Increased sensitivity to light
Faded colors
Frequent changes in eyeglass prescription
Double vision in one eye
Types of 白內障
Type | Description |
|---|---|
Nuclear cataract | Affects the center of the lens |
Cortical cataract | Begins at the edges of the lens |
Posterior subcapsular cataract | Forms at the back of the lens |
Congenital cataract | Present at birth |
Risk Factors
Aging
Diabetes
Smoking
Excessive UV exposure
Long-term steroid use
Eye injury
Diagnosis
An ophthalmologist can diagnose 白內障 through:
Visual acuity testing
Slit-lamp examination
Retinal evaluation
Pupil dilation examination
Treatment
Early 白內障 may be managed with stronger lighting and updated glasses. However, surgery is the only definitive treatment once vision becomes significantly affected.
Conclusion
白內障 is highly treatable, and modern cataract surgery has a very high success rate. Early detection and regular eye examinations can help preserve vision and maintain quality of life.