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Traumatic
- Most common complication of non-perforating and perforating injuries to the globe.
- Intraocular trauma by surgical instruments, lodged foreign body or intraocular filtration tube is also a possible cause.
Clinical Features
- Cataract formation after non-perforating injuries such as contusion or concussion may occur without any damage to the lens capsule
- The cataract formation may be slowly progressive or mature suddenly
- It is not always easy to observe initial changes of the lens
- Vossius' ring can be seen as circular iris pigment imprinted on the surface of the lens anterior capsule
- Opacification can occur in a variety of lens structures resulting in discrete, punctate subepithelial changes, or deep in the cortex with the typical rosette (flower-shaped) opacity
- Trauma may also produce anterior or posterior subcapsular opacities.
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