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Dynamic assessment of variations in pupil diameter using swept-source anterior segment optical coherence tomography after phakic collamer lens implantation
Eye and Vision ( IF 4.1 ) Pub Date : 2021-10-24 , DOI: 10.1186/s40662-021-00262-2
Felix Gonzalez-Lopez 1 , Carmen Bouza-Miguens 1 , Victor Tejerina 1 , Vasyl Druchkiv 2 , Blas Mompean 1 , Julio Ortega-Usobiaga 1 , Rafael Bilbao-Calabuig 1
Affiliation  

To dynamically assess variations in pupil diameter induced by changes in brightness in myopic eyes implanted with an implantable collamer lens (ICL, STAAR Surgical) with a central port. This prospective, observational single-center case series study comprised 65 eyes from 65 consecutive patients undergoing ICL implant. A modified commercially available swept-source Fourier-domain anterior segment optical coherence tomography (AS-OCT) device was used for imaging and performing dynamic pupillometry under changing light conditions before and after a mean follow-up interval of four months after surgery. Preoperative mean pupil size under photopic conditions was 3.38 ± 0.64 mm; after surgery, this increased to 3.48 ± 0.61 mm. Mean pupil size under scotopic light conditions was 5.72 ± 0.79 mm before surgery and 5.84 ± 0.77 mm postoperatively. The differences between preoperative and postoperative pupil diameter in miosis and mydriasis were 0.10 ± 0.44 mm (P = 0.078) and 0.12 ± 0.58 mm (P = 0.098), respectively. The scotopic pupil exceeded the optic zone of the implanted lens in 39 eyes (60%). The mean central vault value was 412 ± 177 μm under maximum miosis and 506 ± 190 μm under maximum mydriasis. We found a positive correlation between vault and differences in pupil diameter under all light conditions (P < 0.05). Dynamic AS-OCT enables a very precise determination of the pupillary diameter in the iris plane. The changes in the pupil diameter under different light conditions after the implantation of an ICL are related to the postoperative vault.

中文翻译:

有晶状体晶体植入后使用扫频源眼前节光学相干断层扫描动态评估瞳孔直径变化

动态评估因近视眼的亮度变化而引起的瞳孔直径变化,该眼部植入了具有中心端口的可植入式准直透镜(ICL,STAAR Surgical)。这项前瞻性、观察性单中心病例系列研究包括来自 65 名接受 ICL 植入术的连续患者的 65 只眼。一种改进的商用扫频源傅里叶域眼前节光学相干断层扫描 (AS-OCT) 设备用于在手术后四个月的平均随访间隔前后在不断变化的光线条件下成像和执行动态瞳孔测量。明视条件下术前平均瞳孔大小为 3.38 ± 0.64 mm;手术后,这增加到 3.48 ± 0.61 毫米。手术前暗光条件下的平均瞳孔大小为 5.72 ± 0.79 mm,术后为 5.84 ± 0.77 mm。瞳孔缩小和瞳孔散大的术前和术后瞳孔直径差异分别为 0.10 ± 0.44 mm (P = 0.078) 和 0.12 ± 0.58 mm (P = 0.098)。39 只眼(60%)的暗瞳超过了植入晶状体的视区。平均中央穹窿值在最大瞳孔缩小下为 412 ± 177 μm,在最大瞳孔散瞳下为 506 ± 190 μm。我们发现在所有光照条件下,拱顶与瞳孔直径差异之间呈正相关(P < 0.05)。动态 AS-OCT 能够非常精确地确定虹膜平面中的瞳孔直径。植入ICL后不同光照条件下瞳孔直径的变化与术后穹窿有关。分别为 58 毫米(P = 0.098)。39 只眼(60%)的暗瞳超过了植入晶状体的视区。平均中央穹窿值在最大瞳孔缩小下为 412 ± 177 μm,在最大瞳孔散瞳下为 506 ± 190 μm。我们发现在所有光照条件下,拱顶与瞳孔直径差异之间呈正相关(P < 0.05)。动态 AS-OCT 能够非常精确地确定虹膜平面中的瞳孔直径。植入ICL后不同光照条件下瞳孔直径的变化与术后穹窿有关。分别为 58 毫米(P = 0.098)。39 只眼 (60%) 的暗瞳超过了植入晶状体的视区。平均中央穹窿值在最大瞳孔缩小下为 412 ± 177 μm,在最大瞳孔散瞳下为 506 ± 190 μm。我们发现在所有光照条件下,拱顶与瞳孔直径差异之间呈正相关(P < 0.05)。动态 AS-OCT 能够非常精确地确定虹膜平面中的瞳孔直径。植入ICL后不同光照条件下瞳孔直径的变化与术后穹窿有关。我们发现在所有光照条件下,拱顶与瞳孔直径差异之间呈正相关(P < 0.05)。动态 AS-OCT 能够非常精确地确定虹膜平面中的瞳孔直径。植入ICL后不同光照条件下瞳孔直径的变化与术后穹窿有关。我们发现在所有光照条件下,拱顶与瞳孔直径差异之间呈正相关(P < 0.05)。动态 AS-OCT 能够非常精确地确定虹膜平面中的瞳孔直径。植入ICL后不同光照条件下瞳孔直径的变化与术后穹窿有关。
更新日期:2021-10-24
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