Question
No dietary restrictions. Activities wise, I think one should refrain from any activity that involves pressing on the eye for sure, definitely no eye rubbing.
Usually I advise patients not to have vigorous exercise, but one can take a walk or have some very gentle exercise, I think that's not restricted.
International standard for perfect vision is 20/20 or 6/6 in British terms. It depends on how the cataract is affecting the vision, not only in quality but also in quantity. After the surgery you will have a clear lens in place.
Intraocular lenses (IOL) rarely fails a few years after cataract surgery and implants. However, a significant proportion of post-cataract surgery patients may encounter a condition called "posterior capsular opacification (PCO)" which causes cloudiness of vision. How does Posterior Capsular Opacification occur? During cataract extraction surgeries, the "nucleus and cortex" i. e. the core content of the cataract are removed through the front leaflet of the transparent capsule, on which a circular opening of about 5mm had been made (either with forceps or with e. g. a laser).
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