Abstract

Volume.120 Number.10

Original article : Clinical science

Results and Prognostic Factors for Visual Outcome Following Micro Incision Vitrectomy Surgery in Proliferative Diabetic Retinopathy
Hideaki Someya, Tadashi Muraoka, Takayuki Kanda, Masaru Takeuchi
Department of Ophthalmology, National Defense Medical College

Purpose: To evaluate outcome of micro incision vitrectomy surgery (MIVS) for proliferative diabetic retinopathy (PDR).
Methods: One hundred seventy three eyes with PDR that underwent primary MIVS were classified into 3 groups by preoperative complications; group A consisted of 56 eyes with only vitreous hemorrhage (VH), group B was 97 eyes with retinal detachment (RD) outside the macula, and group C was 20 eyes with RD both in and out of the macular area. Perioperative factors and visual outcome were compared between 3 groups.
Results: Visual acuity (VA) improved in 117 eyes (68%), remained unchanged in 37 eyes (21%), and deteriorated in 19 eyes (11%). Postoperative VA was improved or not changed in 96% of group A, 88% of group B, and 75% of group C. Postoperative complications were VH (21%), neovascular glaucoma (6%), and RD (5%). Preoperative ocular hypertension, operation time, iatrogenic tear, tamponade, and postoperative complications were significantly more in unimproved eyes, and multivariable analysis revealed preoperative ocular hypertension (odds ratio=5.1) and RD (odds ratio=4.1) as factors of poor postoperative VA.
Conclusion: MIVS is effective for treatment of PDR, but visual outcome resulted from the preoperative conditions.
Nippon Ganka Gakkai Zasshi (J Jpn Ophthalmol Soc) 120: 682-688, 2016.

Key words
Proliferative diabetic retinopathy, Vitreous surgery, Visual outcome, High intraocular pressure, Retinal detachment
Reprint requests to
Hideaki Someya, M.D. Department of Ophthalmology, National Defense Medical College. 3-2 Namiki, Tokorozawa-shi, Saitama-ken 359-0042, Japan