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18.08.2016 | Retinal Disorders | Ausgabe 3/2017

Graefe's Archive for Clinical and Experimental Ophthalmology 3/2017

Short-term focal macular electroretinogram of eyes treated by aflibercept & photodynamic therapy for polypoidal choroidal vasculopathy

Zeitschrift:
Graefe's Archive for Clinical and Experimental Ophthalmology > Ausgabe 3/2017
Autoren:
Kei Takayama, Hiroki Kaneko, Keiko Kataoka, Shinji Ueno, Piao Chang-Hua, Yasuki Ito, Hiroko Terasaki

Abstract

Background

To compare short-term outcomes of intravitreal aflibercept injection (IAI) with or without initial photodynamic therapy (PDT) for polypoidal choroidal vasculopathy (PCV) using focal macular electroretinography (FMERG).

Design

Observation case series.

Methods

Twelve patients (6 males, 6 females; 12 eyes) with naïve PCV received 3 initial IAIs and a single session of PDT 3 days after the first IAI (combination group), and 13 patients (7 males, 6 females; 13 eyes) with naïve PCV received 3 initial IAIs only (IAI group) were retrospectively observed. Changes in visual acuity, central retinal thickness (CRT), central choroidal thickness (CCT), and FMERG parameters (FMERGs) were compared.

Results

The combination group showed improved visual acuity after the second and third IAI (P = 0.040, 0.019, respectively); both groups showed reduced CRT after the first IAI (P < 0.01, each). Only the combination group showed reduced CCT after the third IAI (P = 0.031). The FMERGs of the IAI group showed improved amplitudes of a-waves after the third IAI (P = 0.026) and of b-waves after the first and third IAI (P = 0.034, < 0.01, respectively); the combination group did not show improvement. The implicit times of the a- and b-waves were not changed in either group.

Conclusions

Combination therapy and IAI monotherapy each improved visual acuity and retinal structure to a similar degree; combination therapy reduced choroidal thickness but did not improve FMERGs in the short term.

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