Corneal topographic analysis by 3-dimensional anterior segment optical coherence tomography after endothelial keratoplasty.

نویسندگان

  • Ritsuko Higashiura
  • Naoyuki Maeda
  • Tomoya Nakagawa
  • Mutsumi Fuchihata
  • Shizuka Koh
  • Yuichi Hori
  • Tomoyuki Inoue
  • Kohji Nishida
چکیده

PURPOSE To investigate the characteristics of the corneal topography with three-dimensional (3-D) anterior segment optical coherence tomography (AS-OCT) following Descemet's stripping automated endothelial keratoplasty (DSAEK). METHODS Thirty-four eyes of 33 patients following DSAEK were studied. In addition to conventional topographic maps, the elevation map of the intrastromal interface and pachymetric maps of the host and graft were obtained by corneal topographic analysis using 3-D AS-OCT. The coefficient of variation of the corneal power (CV-Pa, CV-Pp) and root mean squares of the corneal elevation (RMS-Ea, RMS-Ep) of the anterior and posterior corneal surfaces were determined. Based on the combination of the regularity and irregularity of the anterior and posterior surfaces, subjects were classified into four types: type 1, regular/regular; type 2, irregular/regular; type 3, regular/irregular; and type 4, irregular/irregular. RESULTS The average graft decentration was 0.59 ± 0.23 mm. The proportion of types 1, 2, 3, and 4 were 59%, 9%, 24%, and 9 %, respectively. The CV-Pa (25.8 ± 8.9) and CV-Pp (-73.9 ± 18.0) of the type 1 corneas were significantly better than that of type 2 and type 3 corneas, respectively. The RMS-Ea (5.1 ± 1.3) and RMS-Ep (26.0 ± 7.3) of the type 1 corneas were significantly better than that of type 2 and type 3 corneas. CONCLUSIONS An OCT-based corneal topographer might be useful in determining the factors associated with optical quality of the cornea following DSAEK by analyzing the topographic characteristics of host and donor separately.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Anterior-segment optical coherence tomography investigation of corneal deturgescence and epithelial remodeling after DSAEK.

PURPOSE The aim of this study was to evaluate via Fourier-domain anterior-segment optical coherence tomography 3-dimensional corneal, epithelial, and graft thickness changes after Descemet stripping automated endothelial keratoplasty (DSAEK). METHODS Sixteen eyes were investigated preoperatively and up to 6 months postoperatively for preoperative and postoperative central corneal thickness (C...

متن کامل

Descemet stripping automated endothelial keratoplasty in Fuchs’ corneal endothelial dystrophy: anterior segment optical coherence tomography and in vivo confocal microscopy analysis

BACKGROUND To evaluate the in vivo corneal changes using in vivo confocal microscopy (IVCM) and anterior segment optical coherence tomography (AS-OCT) in patients with Fuchs' dystrophy who underwent Descemet stripping automated endothelial keratoplasty (DSAEK) and the relationship between these changes and the postoperative visual recovery up to 1-year follow-up. METHODS Before DSAEK and 1 da...

متن کامل

Repair of descemet membrane detachments with the assistance of anterior segment optical coherence tomography.

Extensive Descemet membrane detachment (DMD) is a rare complication of intraocular surgery that can lead to corneal decompensation. Although DMD may resolve spontaneously, surgical repair frequently is required. The diagnosis may be difficult because corneal edema can obscure visualization of the Descemet membrane (DM). Ultrasonographic biomicroscopy (UBM) has been the standard for imaging DMD ...

متن کامل

Descemet Membrane Endothelial Keratoplasty as a Secondary Approach After Failure of Penetrating Keratoplasty.

OBJECTIVES To investigate visual outcome and postoperative complications in patients undergoing Descemet membrane endothelial keratoplasty with graft failure after penetrating keratoplasty. MATERIALS AND METHODS A retrospective analysis was performed with 5 patients who underwent Descemet membrane endothelial keratoplasty after failed penetrating keratoplasty. Intraoperative and postoperative...

متن کامل

The complementary benefit of anterior segment optical coherence tomography in penetrating keratoplasty

PURPOSE To evaluate the utility of anterior segment optical coherence tomography (AS-OCT) assessment in the pre- and postsurgical management of full-thickness corneal grafts. METHODS Seventy eyes of 58 patients who had penetrating keratoplasty were included in the study. High resolution AS-OCT scans of the cornea and the anterior segment were performed before and after transplantation in 17 e...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Investigative ophthalmology & visual science

دوره 53 7  شماره 

صفحات  -

تاریخ انتشار 2012