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Vitrectomy refers to the surgical removal of parts of the vitreous or even of the entire vitreous from the eye. There are many medical and health reasons that require a vitrectomy.
Vitrectomy has been used in medicine since the late 1960s. Under the glass body is meant the jelly-like mass that fills the back of the eye and thus gives the eyeball stability.
Many patients are reluctant to undergo a vitrectomy. Too much anchored is the belief that the vitreous represents an irreplaceable and important part of the eye. Therefore, its loss is often equated with vision loss. In fact, the vitreous body substance is important only in the developmental phase of the eye.
Whether a vitrectomy is necessary for the treatment of an eye disease, the attending physician can determine only after a comprehensive investigation. Here, the individual diagnosis must be assessed as accurately as the condition of the eye and the condition of the patient. If the patient's or eye's state of health is against a vitrectomy, for example, other treatment options should be sought.
To perform a vitrectomy several small accesses are created; these access incisions, via which the instruments are introduced into the vitreous cavity for vitrectomy, are between 0.9 and 0.4 mm small (23 or 25 gauge). Today, 27 gauge is possible, but the opening is only one-fifth the size of the past. Instead of the removed vitreous, certain gases (e.g., sulfur hexafluoride) or liquids such as highly purified silicone oil are introduced.
The most important consequence of an otherwise successful vitrectomy on an eye that still has a natural lens: the lens will become cloudier faster than normal; The cataract forms or progresses rapidly after vitrectomy. This circumstance is one of many reasons why a vitrectomy, if indicated by vitreous opacities or retinal diseases, should be conveniently performed in one session with a cataract.