ABNORMALITIES OF LENS SHAPE
2. Lenticonus
1. Coloboma
3. Small lens
Coloboma
Coloboma of iris Coloboma of choroid Giant retinal tear
Ocular associations
LenticonusPosterior
• Posterior axial bulge• Unilateral - usually sporadic• Bilateral - familial or in Lowe syndrome
Anterior
• Anterior axial bulge
• Associated with Alport syndrome
Small lens
• Small diameter • Small diameter and spherical• May be familial (dominant)
Microphakia Microspherophakia
• Systemic association - Lowe syndrome
• Systemic association - Weill-Marchesani syndrome
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