For cataracts with visual acuity of 0.6 and above is not a necessary condition for surgery, it depends on whether the surgery can improve the visual acuity or not.
Cataracts of all causes and types can be operated on to improve vision or appearance, regardless of whether the current visual acuity is 0.6 or not, and even in some cases where only light perception is present, as long as the systemic and local conditions meet the conditions for surgery and the surgery can improve the cataract patient’s visual acuity.
To determine whether cataract surgery can be performed, it is necessary to evaluate the patient’s general condition such as electrocardiogram, blood pressure, blood glucose, etc., as well as auxiliary examinations such as optometry, slit-lamp microscopy, lacrimal irrigation and ocular ultrasonography, etc., in order to rule out unsuitable conditions for the surgery, and to make a comparative estimate of the visual acuity before and after the surgery.
It is recommended to choose regular medical institutions for cataract surgery and communicate with your doctor in case of discomfort.