الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Extracapsular cataract extraction with posterior chamber intraocular lens implantation is generally accepted as a safe operation with satisfying visual results and with a smaller incidence of complications than the intracapsular technique and implantation of anterior chamber or iris supported IOLs.
A systemic approach to the recognition and classification of iris biomicroscopic changes after extracapsular cataract extraction and posterior chamber IOL implantation has been reported inspite of some post operative deformities.
During surgery, it is better to avoid manipulating the iris with instruments, it is better to use a jet of fluid to control its position and to effect separation from other structures.
Complications:
1- During the operation: Atonic pupil.
2- Post operative complications:
a- Stromal and anterior border layer trauma.
b- Iris synechiae.
c- Anterior tucking of the iris caused by posterior chamber lenses with polypropylene loops.
d- Pupillary capture after posterior chamber intraocular lens implantation.
e- Pupillary block with posterior chamber intraocular lens.
f- Intraocular lens dislocation.
3- Post operative changes:
a- Difficulties of constricted pupil for extracapasular cataract extraction surgery.
b- Morphological changes after extracapasular cataract extraction with implantation of posterior chamber intraocular lenses.
c- Post operative physiological changes including altered permeability of iris vessels following posterior chamber lens implantation.
d- Post operative pathologic changes:
I- Atrophy of ocular tissues.
II- Erosion of ocular tissues.
e- Extracapasular cataract surgery with intraocular lens implantation in Fuchs’ heterochromic uveitis (iritis).
f- Extracapasular cataract extraction with implantation of posterior chamber intraocular lens in patients with aniridia.