PSEUDOXANTHOMA ELASTICUM: SUCCESSFUL LONG-TERM MANAGEMENT OF CHOROIDAL NEOVASCULARIZATION SECONDARY TO ANGIOID STREAKS WITH PRO RE NATA INTRAVITREAL BEVACIZUMAB INJECTIONS

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Abstract
Purpose: To demonstrate how a patient with recurrent episodes of choroidal neovascularization (CNV), secondary to angioid streaks, can be managed successfully with a pro re nata regime of intravitreal bevacizumab injection over an eight-year period. Method: A 32-year-old white woman with pseudoxanthoma elasticum has been followed up over an eight-year period for management of recurrent episodes of CNV in both eyes. She was educated to recognize the early signs and symptoms of CNV. Physical examination including visual acuity and slit-lamp examination as well as investigations such as macula optical coherence tomography and optical coherence tomography angiography were performed. Bevacizumab injections were given to her when she was diagnosed with CNV. Results: Multiple episodes of CNV were successfully treated with pro re nata regimes of intravitreal bevacizumab injections. The patient was able to maintain excellent visual acuity of 0 logarithm of the minimum angle of resolution even after suffering recurrent episodes of CNV. Conclusion: This case report supports that a pro re nata regime of intravitreal bevacizumab injection therapy can be used successfully to treat recurrent episodes of CNV in a patient with pseudoxanthoma elasticum over an eight-year period. Early diagnosis through patient education and the use of appropriate diagnostic tools such as optical coherence tomography angiography have enabled us to deliver early treatment, resulting in an excellent outcome for this patient.