Efective treatment of diffuse diabetic macular edema by temporal grid pattern photocoagulation

Masahiko Shimura, Kanako Yasuda, Toru Nakazawa, Satsuki Ota, Makoto Tamai

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


BACKGROUND AND OBJECTIVE: To determine the effectiveness of laser grid pattern photocoagulation to the macula but not the papillomacular bundle for the treatment of diffuse diabetic macular edema. PATIENTS AND METHODS: Thirty-five eyes of 23 patients with diffuse diabetic macular edema underwent laser grid photocoagulation excluding the papillomacular bundle area. Best-corrected visual acuity by Snellen chart, foveal thickness using a retinal mapping program by optical coherence tomography (OCT), and mean deviation sensitivity by Humphrey automated central perimetry were investigated before and 1, 3, and 6 months after the treatment. RESULTS: Six months after treatment, the visual acuity was improved by 2 or more lines in 16 eyes (43%) and the foveal thickness decreased in 32 eyes (91%). The mean deviation worsened in 34 eyes (97%). There was a significant correlation between the improvement of visual acuity and the initial mean deviation, suggesting that a better visual acuity would be expected with a preoperative mean deviation of approximately -20 dB. CONCLUSION: Grid pattern photocoagulation without treatment to the papillomacular bundle area was effective in treating diffuse diabetic macular edema, especially in eyes with an initial mean deviation showing moderate dysfunction.

Original languageEnglish
Pages (from-to)270-280
Number of pages11
JournalOphthalmic Surgery Lasers and Imaging
Issue number4
Publication statusPublished - 2004 Jul

ASJC Scopus subject areas

  • Surgery
  • Ophthalmology


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