Purpose: We aimed to compare clinical characteristics between diplopia-free and diplopia-persistent patients after successful strabismus surgery, when patients complained of diplopia following secondary intraocular lens (IOL) implantation after prolonged aphakia accompanied by sensory strabismus.
Methods: Retrospective review of medical records of patients who complained of diplopia following secondary IOL placement with sensory strabismus after prolonged uncorrected monocular aphakia from isolated ocular trauma was done. We classified patients into two groups according to persistency of diplopia, 6 months after successful strabismus surgery. Clinical characteristics were compared between groups.
Results: A total of 31 patients were included. The diplopia-persistent group showed longer duration of uncorrected aphakia (p = 0.02), less severe corneal astigmatism (p = 0.04), a smaller exodeviation angle (p = 0.02), and more frequent vertical deviation (p = 0.015), extorsion (p = 0.022) and monocular nystagmus (p = 0.028) than the diplopia-free group. In all patients in the diplopia-free group, diplopia could be eliminated prior to strabismus surgery using loose prisms in free space, whereas seven patients in the diplopia-persistent group prior to surgery could not resolve diplopia.
Conclusions: Our data will be helpful for ocular surgeons in determining whether to insert secondary IOL in prolonged aphakia with sensory strabismus, or whether strabismus surgery will eliminate diplopia that develops following secondary IOL placement in this situation.
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