Cataracts are a vision-impairing disease caused by the clouding of the lens, a crucial optical component in the human eyeball, which is normally transparent. The clouding occurs due to the denaturation of lens proteins for various reasons, leading to various degrees of vision impairment in patients. Some patients with cataracts may not exhibit noticeable symptoms in the early stages, while others may experience mild blurriness in vision initially. As the cloudiness of the lens gradually worsens, the blurring of vision progressively intensifies. Some may even experience symptoms like nearsightedness, double vision, strabismus, or glare. If these symptoms occur, it is advised to seek prompt medical attention from an ophthalmologist, undergo relevant examinations, and based on the extent of lens cloudiness, decide whether cataract removal surgery is necessary.