Friday, November 6, 2015

OPHTHALMIC OPERATION 8 viterectomy


Vitrectomy
Objective
•   To clean away blood, pus, etc from the vitreous cavity of the eye.
•   As a step in removal of intraocular foreign bodies, complicat­ing retinal detachment operations, etc.
Position
Supine.
Anesthesia
General or local (Peribulbar block or Retrobulbar block + Facial block).
Procedure
1.  Lid sutures passed, clamped.
2.  Conjunctival peritomy.
3.  Rectus muscles isolated.
4.  Infusion port made; infusion started.
5.  2nd entry port made; followed by 3rd port if required.
6.  Vitrectomy performed.
7.  Retina visualized (using contact lens or indirect ophthalmo­scope).
8.  Closure of entry ports and conjunctival closure.
Instruments
•   General Oculoplasty set.
•   Vitrectomy set.

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