Preoperative electroretinogram and postoperative visual outcome in patients with diabetic vitreous hemorrhage.

Abstract:

PURPOSE:To determine whether the single-flash electroretinogram (ERG) can predict the postoperative outcome in diabetic cases where massive vitreous hemorrhage precludes fundus observation. METHODS:Eighty-five diabetic patients (105 eyes) who underwent vitrectomy due to dense vitreous hemorrhage were studied retrospectively. Eyes with postoperative complications were excluded. Preoperative ERGs (mixed cone-rod ERG with maximum flash intensity) were classified as: Group A, the b-wave/a-wave ratio (b/a ratio) was > or =1.0 and the oscillatory potentials (OPs) were clearly recordable (22 eyes); Group B, the b/a ratio was > or =1.0 and the OPs were markedly reduced (33 eyes); and Group C, the b/a ratio was <1.0 (50 eyes). RESULTS:The postoperative visual acuity in Group C (hand motion to 1.5) was significantly worse than in Group A (0.4-.2) (P<.01) or Group B (0.08-1.0) (P<.01). Thick preretinal membrane causing retinal traction around the optic disc was found intraoperatively in 1 eye (4.5%) in Group A, 9 eyes (27.3%) in Group B, and 28 eyes (56.0%) in Group C (P=.0132). CONCLUSION:Our findings suggested that the configuration of the single-flash ERG can provide important preoperative information for a functional prognosis following vitrectomy in diabetic patients with vitreous hemorrhage.

journal_name

Jpn J Ophthalmol

authors

Hiraiwa T,Horio N,Terasaki H,Suzuki T,Yamamoto E,Horiguchi M,Miyake Y

doi

10.1016/s0021-5155(03)00015-7

keywords:

subject

Has Abstract

pub_date

2003-05-01 00:00:00

pages

307-11

issue

3

eissn

0021-5155

issn

1613-2246

pii

S0021515503000157

journal_volume

47

pub_type

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