Retinal surface imaging provided by Cirrus high-definition optical coherence tomography prominently visualizes a dissociated optic nerve fiber layer appearance after macular hole surgery
Tóm tắt
To investigate whether retinal surface imaging by Cirrus high-definition optical coherence tomography (HD-OCT) clearly depicts the development process of a dissociated optic nerve fiber layer (DONFL) appearance after macular hole (MH) surgery. We reviewed the medical records of the patients who underwent MH surgery with internal limiting membrane peeling. The cases were then selected using three principal criteria: (1) surgeries performed by the same surgeon (S. K.), (2) pre- and postoperative Cirrus HD-OCT imaging, and (3) minimal follow-up of 3 months. All cases received a complete ophthalmologic examination. The presence/absence of a DONFL appearance was determined using a retinal surface image provided by Cirrus HD-OCT. Color fundus photographs were also used for determination if available. Fifteen cases met the criteria. A DONFL appearance was identified in 11 (73%) cases during the postoperative course by retinal surface imaging. A DONFL appearance was not detected in any OCT retinal surface image within the first postoperative month, gradually became distinct between 1 and 3 months after surgery, and remained detectable thereafter in all cases but one whose DONFL appearance became less detectable at 12 months. Indentations of the innermost retinal layer became apparent on cross-sectional OCT images as a DONFL appearance developed on OCT retinal surface images. There were two cases in which the DONFL appearance was not observed on color fundus photographs but detected on OCT retinal surface images. Retinal surface imaging provided by Cirrus HD-OCT appeared to be a promising option in evaluating a DONFL appearance after MH surgery.
Tài liệu tham khảo
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