Fabrikantov O L, Nikolashin S I, Shutova S V, Pirogova E S
Tambov branch of S. Fyodorov Eye Microsurgery Federal State Institution, 1 Rasskazovskoe shosse, Tambov, Russian Federation, 392000; Derzhavin Tambov State University, Medical Institute, 93 Sovetskaya St., Tambov, Russian Federation, 392000.
Tambov branch of S. Fyodorov Eye Microsurgery Federal State Institution, 1 Rasskazovskoe shosse, Tambov, Russian Federation, 392000.
Vestn Oftalmol. 2018;134(3):42-47. doi: 10.17116/oftalma2018134342.
When the lens swells, a liquefied lenticular substance that increases intralenticular pressure accumulates in the lens bag making it difficult to perform standard capsulorhexis. Thus, determination of the intralenticular pressure value is of great importance for safe intumescent cataract phacoemulsification.
To develop a technology for intralenticular pressure measurement in patients with intumescent cataract and to construct a mathematical model for its prognosis according to preoperative examination data.
Intralenticular pressure was measured in 11 eyes with intumescent cataract. Before that, the following parameters of the anterior compartment of the eye were examined: anterior chamber depth, lens thickness according to ultrasound biomicroscopy (UBM), hypoechogenic layer (the anterior layer of liquefied lenticular masses), equatorial angle.
The intraoperative technology of the intralenticular pressure measurement was developed. The direct dependency between thickness of the swelling lens, hypoechogenic layer value (the anterior layer of liquefied lenticular masses), anterior chamber depth and intralenticular pressure magnitude was defined.
For the first time, the intraoperative intralenticular pressure was measured in patients with intumescent cataract. A dependency was defined between the thickness of the lens and the anterior layer of liquefied lenticular masses, anterior chamber depth, and intralenticular pressure magnitude; based on this, a mathematical model for intralenticular pressure measurement was constructed.
晶状体肿胀时，会有液化的晶状体物质积聚在晶状体囊袋内，导致晶状体内部压力升高，这使得进行标准的连续环形撕囊变得困难。因此，确定晶状体内部压力值对于安全进行膨胀期白内障超声乳化手术至关重要。
开发一种测量膨胀期白内障患者晶状体内部压力的技术，并根据术前检查数据构建其预后的数学模型。
对11只膨胀期白内障患眼测量晶状体内部压力。在此之前，检查了眼前房的以下参数：前房深度、超声生物显微镜（UBM）测量的晶状体厚度、低回声层（液化晶状体团块的前层）、赤道角。
开发了术中测量晶状体内部压力的技术。确定了肿胀晶状体的厚度、低回声层值（液化晶状体团块的前层）、前房深度与晶状体内部压力大小之间的直接相关性。
首次对膨胀期白内障患者进行了术中晶状体内部压力测量。确定了晶状体厚度与液化晶状体团块前层、前房深度和晶状体内部压力大小之间的相关性；基于此，构建了晶状体内部压力测量的数学模型。
