Detorakis Efstathios T, Karavitaki Alexandra, Stojanovic Nela, Kontadakis George, Pallikaris Ioannis G
Department of Ophthalmology, University Hospital of Heraklion, 71110, Heraklion, Crete, Greece,
Int Ophthalmol. 2014 Aug;34(4):781-6. doi: 10.1007/s10792-013-9872-x. Epub 2013 Oct 29.
This study employs optical coherence tomography (OCT) and ultrasound biomicroscopy (UBM) imaging as well as optical aberrometry to examine correlations between the anterior chamber angle aperture and visual acuity for near vision as well as coma along the horizontal and vertical axes in eyes implanted with an accommodative intraocular lens (Crystalens). A retrospective comparative consecutive case series of 22 eyes of 11 patients (5 males) uneventfully implanted with a Crystalens. Eyes with signs of posterior capsular opacification were excluded. All eyes were examined with 40 MHz UBM (Ellex Eyecubed) and spectral-domain OCT (Zeiss Visante). The angle aperture along the horizontal and vertical meridians was recorded based on the software of the systems. The coma root mean square (RMS) scores for the horizontal and vertical meridians were also recorded with the iTrace aberrometer. The anterior chamber angle was significantly wider along the horizontal axis compared with the vertical axis by UBM (46.37° and 44.20°, respectively) and by OCT (46.79° and 43.58°, respectively) (p = 0.02 in both cases, paired-samples t test). The correlations between the logMAR-converted Jaeger near vision score and the horizontal or vertical angle apertures was not statistically significant. Horizontal coma RMS was significantly inversely correlated with the horizontal angle aperture (r = -0.45, p = 0.03 and r = -0.39, p = 0.04 by OCT and UBM, respectively). Measurement of the horizontal angle aperture by the modalities used may represent an anatomical and clinical predictor of the optical aberrations induced by the Crystalens.
本研究采用光学相干断层扫描（OCT）、超声生物显微镜（UBM）成像以及光学像差仪，来检测植入可调节人工晶状体（Crystalens）的眼睛中，前房角孔径与近视力的视力以及水平和垂直轴上的彗差之间的相关性。对11例患者（5例男性）的22只眼进行回顾性比较连续病例系列研究，这些眼睛均成功植入了Crystalens。排除有后囊膜混浊迹象的眼睛。所有眼睛均使用40MHz的UBM（Ellex Eyecubed）和光谱域OCT（蔡司Visante）进行检查。根据系统软件记录水平和垂直子午线上的角孔径。还使用iTrace像差仪记录水平和垂直子午线上的彗差均方根（RMS）分数。通过UBM测量，前房角在水平轴上明显比垂直轴宽（分别为46.37°和44.20°），通过OCT测量结果分别为46.79°和43.58°（两种情况p均 = 0.02，配对样本t检验）。对数最小分辨角转换后的耶格近视力评分与水平或垂直角孔径之间的相关性无统计学意义。水平彗差RMS与水平角孔径显著负相关（通过OCT和UBM测量，r分别为-0.45，p = 0.03和r = -0.39，p = 0.04）。所使用的方法测量水平角孔径可能代表了Crystalens引起的光学像差的解剖学和临床预测指标。
