What is the principle of cold phacoemulsification for cataract in Shanghai?

Compared with common phacoemulsification, cold phacoemulsification is like installing refrigeration and air conditioning, which changes the continuous heat production process of common phacoemulsification into an alternating process of heat production and cooling. The heat and energy generated in the process of ultrasound is obviously reduced and will not burn corneal tissue, so it is called "cold phacoemulsification". This technology improves the curative effect of difficult cases and brings the best postoperative visual quality to patients. This is the most advanced surgical method to treat cataract in the world. I suggest that you can choose a professional eye hospital to check whether it is suitable for your grandfather, and the effect is good.