IOVS Advertisement
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Originally published In Press as doi:10.1167/iovs.08-2342 on August 29, 2008
 (Investigative Ophthalmology and Visual Science. 2009;50:84-89.)
© 2009 by The Association for Research in Vision and Ophthalmology, Inc.
doi:10.1167/iovs.08-2342
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
iovs.08-2342v1
50/1/84    most recent
Right arrow Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when eLetters are posted
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Tarita-Nistor, L.
Right arrow Articles by Steinbach, M. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Tarita-Nistor, L.
Right arrow Articles by Steinbach, M. J.

Fixation Stability, Fixation Location, and Visual Acuity after Successful Macular Hole Surgery

Luminita Tarita-Nistor,1,2 Esther G. González,1,2,3 Mark S. Mandelcorn,3 Linda Lillakas,1,2 and Martin J. Steinbach1,2,3

1From the Vision Science Research Program, Toronto Western Hospital, Toronto, Canada; the 2Centre for Vision Research, York University, Toronto, Canada; and the 3Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Canada.

PURPOSE. This study examined whether changes in fixation stability and fixation location are good predictors of visual acuity after successful macular hole surgery.

METHODS. Ten patients with macular hole were tested before surgery and at 1 and 3 months after surgery. Visual acuity was measured with the ETDRS; fixation stability and fixation location were assessed with the MP-1 Microperimeter (Nidek Technologies Srl., Vigonza, PD, Italy). The quantitative measure of fixation stability was calculated with a bivariate contour ellipse area (BCEA). Fixation location shift was evaluated using the differential map analysis feature of the MP-1 Microperimeter.

RESULTS. There was a significant improvement in visual acuity after macular hole closure. Fixation location shifted an average of 0.55 deg and 0.87 deg at 1 month and 3 months after surgery, respectively. The fixation shift was not a good predictor of visual outcome. Fixation stability improved from an average of 0.35 deg2 before surgery to 0.29 deg2 at 3 months after surgery. The change in fixation stability ({Delta}BCEA = BCEA before – BCEA after surgery) correlated highly with visual outcome. The regression model showed that {Delta}BCEA accounted for a significant proportion of the variance in visual acuity both 1 and 3 months after surgery.

CONCLUSIONS. Some changes in ocular motor function explain the visual outcome after the anatomic success of macular hole surgery. Fixation location shift has no influence on visual acuity post-operatively; however, change in fixation stability is a strong predictor of visual outcome after successful closure of the macular hole.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2009 by the Association for Research in Vision and Ophthalmology