Search PubMed⌕ Search

Biomedical subjects

Yasuo Tano

Publications and source records attributed to Yasuo Tano.

148 records · Page 9Linked to original sources
PubMedDate not supplied

Macular hole diameter after vitrectomy for macular hole and retinal detachment.

PURPOSE: We measured postoperative macular hole (MH) size after vitrectomy for MH and retinal detachment (MHRD) in high myopia and investigated potentially associated factors. METHODS: Eleven patients (11 eyes) with high myopia (axial length, 25.6-30.8 mm; mean patient age +/- SD, 64.0 +/- 4.31 years) who had retinal attachment without MH closure after vitrectomy for MHRD were included in the study. Postoperative MHs were measured using optical coherence tomography. A horizontal 5.65-mm-long scan of the retina was obtained, and the MH size was measured as the length between the edges of the MH using the retinal thickness mode of the optical coherence tomography system. RESULTS: The mean postoperative MH size +/- SD was 1,220 +/- 450 microm. Only axial length was significantly associated with postoperative MH size (P < 0.05). There was a tendency for smaller MH sizes to be associated with better postoperative best-corrected visual acuity (P = 0.06). CONCLUSIONS: Persistent MHs after vitrectomy were enlarged according to axial length elongation in highly myopic eyes. Even if MH closure was not successful, the maximum effort to shorten postoperative MH size led to a better postoperative outcome.

Aged↗
PubMedDate not supplied

Radial optic neurotomy for the management of hemicentral retinal vein occlusion: long-term follow-up study.

PURPOSE: To assess the efficacy of radial optic neurotomy (RON) for hemicentral retinal vein occlusion (hemi-CRVO) in patients with follow-up of >12 months. METHODS: Five consecutive patients with hemi-CRVO were enrolled in the study and underwent vitrectomy with RON. The effects of this treatment were assessed by visual acuity, optical coherence tomography, indocyanine green angiography, and kinetic visual field testing. RESULTS: The median and mean visual acuities improved from 20/250 to 20/50 and from 20/286 to 20/51, respectively. Four patients (80%) had visual acuity improvement of > or =3 lines; visual acuity in 1 patient (20%) remained the same. Visual acuity in all four eyes with preoperative visual acuity of <20/200 improved to >20/200 12 months after surgery. Foveal thickness was gradually reduced during the follow-up period. Chorioretinal anastomosis was detected by indocyanine green angiography in 3 eyes (60%). A temporal visual field defect was found in two eyes. No neovascularization on the iris, angle, optic disk, or retina was detected postoperatively. CONCLUSION: Visual acuity may improve more with RON compared with the natural history of the disease, and no neovascular formation may occur after RON, suggesting that this procedure may be an effective treatment for hemi-CRVO.

Aged↗