The symptoms of senile cataract are as follows: 1. Mild blurred vision: The early symptoms of senile cataract are usually not very obvious and can have mild blurred vision. 2. Aggravated blurred vision or even blindness: After the middle stage, the patient’s lens clouding gradually aggravates, and the patient will show aggravated blurred vision, with the front of the eyes like clouds obscuring, and some patients will show that their vision is worse in bright light instead. When the lens clouding is very serious, the patient’s vision can be reduced to light perception or even blindness. 3, other symptoms: some of the refractive state changes, that is, some people appear pseudomyopia, there are color vision changes, the blue light will be more insensitive, and some patients appear monocular diplopia, dazzle, visual field defects, etc.