25 abnormal lens shape

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ABNORMALITIES OF LENS SHAPE 2. Lenticonus 1. Coloboma 3. Small lens

Transcript of 25 abnormal lens shape

Page 1: 25 abnormal lens shape

ABNORMALITIES OF LENS SHAPE

2. Lenticonus

1. Coloboma

3. Small lens

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Coloboma

Coloboma of iris Coloboma of choroid Giant retinal tear

Ocular associations

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LenticonusPosterior

• Posterior axial bulge• Unilateral - usually sporadic• Bilateral - familial or in Lowe syndrome

Anterior

• Anterior axial bulge

• Associated with Alport syndrome

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Small lens

• Small diameter • Small diameter and spherical• May be familial (dominant)

Microphakia Microspherophakia

• Systemic association - Lowe syndrome

• Systemic association - Weill-Marchesani syndrome