EFFECT OF IMPLANTATION 0 CAPSUL RING ON POSTERIOR CAPSULE OPACIFICATION
TAMER IBRAHIM SALEM;
Abstract
In spite of continual refinements in surgical techniques and the development of new materials for IOL production, posterior capsule opacification (PCO) still remains a major complication of modem cataract surgery.
Several studies have been conducted in an attempt to understand· the cellular background and pathogenesis of PCO, aiming at the development of a method for its prevention. These studies have suggested that PCO occurs mainly due to the proliferation,. myofibroblastic differentiation and migration of the equatorial lens epithelial cells (LECs) on to the posterior capsule causing wrinkling. Also these cells may swell forming Elshing's pearls.
On this basis, it was suggested that a discontinuous sharp bend in the capsule created by a sharp edged PMMA capsule tension ring, results in inhibition of migration of LECs and hence decreases the incidence of PCO. In theory, no interspace between the lens optic and . posterior. capsule would prevent LECs from migrating behind the optic ("no space-no cells"). Capsule tension rings are reported to be effective in reducing these late complications.
Several studies have been conducted in an attempt to understand· the cellular background and pathogenesis of PCO, aiming at the development of a method for its prevention. These studies have suggested that PCO occurs mainly due to the proliferation,. myofibroblastic differentiation and migration of the equatorial lens epithelial cells (LECs) on to the posterior capsule causing wrinkling. Also these cells may swell forming Elshing's pearls.
On this basis, it was suggested that a discontinuous sharp bend in the capsule created by a sharp edged PMMA capsule tension ring, results in inhibition of migration of LECs and hence decreases the incidence of PCO. In theory, no interspace between the lens optic and . posterior. capsule would prevent LECs from migrating behind the optic ("no space-no cells"). Capsule tension rings are reported to be effective in reducing these late complications.
Other data
| Title | EFFECT OF IMPLANTATION 0 CAPSUL RING ON POSTERIOR CAPSULE OPACIFICATION | Other Titles | تأثير زرع حلقة بالمحفظة علي عتامة المحفظة الخلفية للعدسة | Authors | TAMER IBRAHIM SALEM | Issue Date | 2004 |
Attached Files
| File | Size | Format | |
|---|---|---|---|
| TAMER IBRAHIM SALEM.pdf | 1.54 MB | Adobe PDF | View/Open |
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