Sunday, November 14, 2010

seven rings of blunt trauma to eye


seven rings of blunt trauma to eye
1> sphincter pupillae - sphincter tear

2> the iris base - iridodialysis

3> anterior ciliary body -angle recession (longitudinal tear of ciliary body face splitting circular fibres from longitudinal fibres of ciliary body)
commonest source of hyphaema
marked posterior displacement of the iris & wide ciliary body band posterior to the scleral spur
glaucoma is not due to recession per se but due to collateral damage to trabecular meshwork
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4> seperation of ciliary body attachment to scleral spur- cyclodialysis


5> trabecular meshwork- trabecular meshwork tear

6> zonules - zonular dialysis

7> retinal attachment at ora serrata - retinal dialysis especially supero nasal

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