Lens & Cataract-Aphakia

Aphakia with Soemmering's ring formation.

Clinical features:
- Absence of the crystalline lens
- Very deep anterior chamber
- Hyperopia in normal length eye
- Soemmering's ring formation as a result of anterior capsule edges attachment to the posterior capsule in the absence of intraocular lens implantation or if lens was not removed in an intracapsular fashion
- In the case above, aphakia resulted from extracapsular congenital cataract extraction without intraocular lens implantation.
Causes:
- Cataract extraction surgery without artificial lens implantation.
- Congenital aphakia.
- Associated with systemic syndrome i.e. Lowe syndrome or Hallermann-Streiff-François syndrome.
Management:
- Consider artificial lens implantation or contact lens.
- Aphakic glasses as an option in bilateral aphakias.

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