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In cataract surgery, on the one hand we remove the opaque lens, on the other hand we preserve the capsule that contained it, in order to accommodate the artificial intraocular lens inside it.
This sac which is called a capsule has two surfaces: anterior and posterior.
Although a large round central part of the capsule is removed during the operation (anterior capsulorhexis), the posterior remains intact and it is possible to become opaque by the proliferations of the cells that remained in the capsule after the operation.
This opacification of the posterior capsule (sometimes referred to as secondary cataract) can appear after some months or a few years, after the operation.
Its treatment is simple, there is no need for surgery, and is performed with a special laser (YAG laser).
In Athens Eye hospital we also perform posterior capsulorhexis, in addition to anterior capsulorhexis, creating a circular incision at the posterior of the capsule, eliminating the possibility of secondary cataract to appear.