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Updated: Aug 16, 2025

Retinal Pigment Epithelium Transplantation in a Non-human Primate Model for Degenerative Retinal Diseases
Published on: June 14, 2021
Epiretinal proliferation embedding combined with internal limiting membrane flap inversion for secondary macular
Masaki Fukushima1,2, Tsuyoshi Kato1, Atsushi Hayashi2
1Takaoka City Hospital, 4-1 Takaramachi, Takaoka-shi, Toyama, 933-8550, Japan.
Purpose:
We describe the cases of two patients for whom we performed an epiretinal proliferation (EP) embedding technique combined with internal limiting membrane (ILM) flap inversion for a full-thickness macular hole (FTMH) with EP.
Observations:
Patient 1 was a 69-year-old Japanese man with decreased vision in his left eye (20/40). He underwent pars plana vitrectomy (PPV) twice for rhegmatogenous retinal detachment and intraocular lens (IOL) dislocation in his left eye. B-scan optical coherence tomography (OCT) imaging revealed FTMH and EP on the surface of a macular hole (MH). We performed a vitrectomy, EP embedding, and ILM inversion (fill). Patient 2 was a 73-year-old Japanese man with decreased vision in his right eye (20/32). He underwent PPV for vitreous hemorrhage and proliferative diabetic retinopathy in his right eye. B-scan OCT imaging revealed FTMH and EP on the surface of an MH. We performed a vitrectomy, EP embedding, and ILM inversion (cover). Six months post-surgery, the FTMH in both patients had closed completely, and each patient's foveal contour and visual acuity (20/20) had improved.
Conclusions And Importance:
EP embedding combined with ILM flap inversion may be effective for treating secondary MHs with EP.

