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01.01.2011 | Retinal Disorders | Ausgabe 1/2011

Graefe's Archive for Clinical and Experimental Ophthalmology 1/2011

Geographic pattern of central retinal sensitivity after intravitreal triamcinolone for diabetic macular edema

Zeitschrift:
Graefe's Archive for Clinical and Experimental Ophthalmology > Ausgabe 1/2011
Autoren:
Takanori Kameda, Kazuaki Nishijima, Noriyuki Unoki, Atsushi Sakamoto, Hisako Hayashi, Hideyasu Oh, Mihori Kita, Nagahisa Yoshimura
Wichtige Hinweise
No conflict of interest or commercial or proprietary interests exist for any of the authors. The authors have full control of all primary data, and agree to allow Graefe’s Archive for Clinical and Experimental Ophthalmology to review their data upon request.

Abstract

Purpose

To evaluate the geographic pattern of central retinal sensitivity and its resolution shortly after intravitreal injection of triamcinolone acetonide (IVTA) for diabetic macular edema (DME).

Methods

Twenty eyes of 20 patients who underwent IVTA for the treatment of DME were reviewed retrospectively. Early changes in best-corrected visual acuity (BCVA), central macular thickness (CMT), photoreceptor inner and outer segments (IS/OS) line and central retinal sensitivity were analyzed. Retinal sensitivity was measured at 40 points within the central 10 degrees of the macula with the Micro Perimeter 1 before treatment, and at 1 week and 1 month after IVTA.

Results

Mean BCVA and CMT improved significantly at 1 week and 1 month after IVTA. Mean retinal sensitivity, however, showed no significant improvement at 1 week (P = 0.238), but did show significant improvement at 1 month (P = 0.0003). Mean retinal sensitivity of the points at the central 2 degrees, which was significantly lower than that at 6 and 10 degrees before treatment, showed improvement similar to those of 6 and 10 degrees after IVTA. Mean retinal sensitivity in the nasal quadrant of the macular area had the best sensitivity at all time points, and improved more than it did in the other quadrants. Mean retinal sensitivity in the central 2 degrees was better in the eyes with complete IS/OS line (P < 0.0001).

Conclusions

BCVA and CMT improved significantly after IVTA for DME. Retinal sensitivity also showed significant, albeit relatively slow, improvement. The nasal quadrant of the macular area showed more improvement than did any other quadrant.

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