الفهرس 
Materials and methodsOnly 14 pages are availabe for public view
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Abstract
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Summary and Conclusion
This study included 23 patient (25eyes ) having uncomplicated
senile cataract who were selected from the outpatient clinic of
Ophthalmology department of Banha University Hospital from
January 1991 to July 1993.
The aim of this work was to study the advantages, difficulties,
the insertion techniques and the properties of soft silicone
intraocular lenses with evaluation of the operative procedure and
postoperative ocular changes in three months duration
Preoperative examination include slit lamp biomicrscopy
pachymertery, Biometery, measurement of lOP with applanation
tonometery and assessment of visual acuity
All eyes were operated upon by the planned ECCE technique
with primary implantation of posterior chamber silicone 101. The
IOL was held and manipulated with either McPherson forceps
(unfolded) or with AMMO phacoflex insertor (folded).
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Few surgical difficulties was observed especially in the early
operated eyes those difficulties included loss of the anterior chamber
and endothelial implant touch superior descement membrane
detachment and hyphema but all could be easily managed and their
incidence became less in the latter cases
Cases were followed up after one week, two weeks, one month,
two months and three months to detect changes in the cornea, the
anterior chamber, intraocular lens, pupil, iris, fundus, intraocular
pressure and visual acuity.
It was noticed that most of the eyes showed various grades of
early striate keratopathy, corneal odema and iritis which resolved
within few days.
Tepmporay rise of lOP on the first postoperative day had
occurred in one eye due to improper removal of viscoelastic material
during lens implantation while another case showed increase of
lOP one month postoperatively.
Few complication needs surgical interference such as lost
anterior chamber (one eye) due to wound gape.
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The absolute visual acuity was 6/12 or better in 80% of eyes.
While it was 6/24 or better in 20% of cases . The postoperative
residual spherical correction ranged from +1.0 to -1.0 D.
The results of this study showed that most of the ocular
changes associated with Posterior chamber silicone IOL can be
either avoided during surgery or postoperatively managed without
inducing permanent ocular complications so we advocate soft
posterior chamber silicone IOL as safe method of optical
rehabilitation of aphakia.
The total benefits of a silicone lens can not be completely realized
unless is implantation can be combined with phacoemulsification
and Small incision surgery and the use of large cataract incision has
deprived silicone lenses from a major advantage over PMMA lenses.
A longer follow up period and perhaps a larger number of cases
may be required for a better and more complete evaluation of the
silicone lenses.