Indirect trauma causing dislocation of the crystalline lens--a case report

Area of Science:

• Ophthalmology
• Trauma Surgery

Background:

• Crystalline lens dislocation is typically associated with direct trauma, genetic factors, or ocular conditions like cataracts.
• Weakened zonules or specific syndromes can predispose individuals to lens instability.

Observation:

• A 76-year-old woman presented with blurred vision after injuring her temple.
• Ocular examination revealed a dislocated crystalline lens into the vitreous cavity (aphakia).
• No signs of pigment dispersion or pseudoexfoliation were noted on gonioscopy.

Findings:

• The patient experienced complete posterior dislocation of the crystalline lens due to indirect head trauma.
• No underlying risk factors, such as pseudoexfoliation or pigment dispersion syndrome, were identified.

Implications:

• This case demonstrates that indirect trauma is a potential cause of crystalline lens dislocation.
• It underscores the importance of considering trauma in the etiology of lens dislocation, even in the absence of typical risk factors.
• Further research may elucidate the biomechanics of indirect trauma-induced lens dislocation.