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目的 :应用A超活体结构测量检查原发性闭角型青光眼 (PACG) ,以了解PACG和睫状环阻滞性青光眼的前房深度、晶体厚度、眼轴长度及晶体相对位置的量化关系。方法 :应用A超检测急闭青、慢闭青和正常眼各 2 8例 5 6眼 ,睫状环阻滞性青光眼 7例 8眼术前的活体眼前节结构 ,并对其测量参数进行对比研究。结果PACG前房浅 (2 0mm左右 )、眼轴短 (2 2mm左右 )、晶体较厚 (4 7mm左右 )、晶体相对位置靠前 (0 197左右 ) ,可以作为诊断PACG的客观指标之一。急闭青与慢闭青比较、急闭青中同一患者的急发眼与临床前期眼比较 ,前房更浅、晶体相对位置更靠前 ,睫状环阻滞性青光眼前房最浅 (1 5mm左右 )、眼轴最短 (2 1mm左右 )可以作为睫状环阻滞性青光眼发生的“高危因素”。结论 :A超活体结构测量在原发性闭角型青光眼、特别是睫状环阻滞性青光眼的发生、诊断及判定预后方面有重要的客观价值。
OBJECTIVE: To examine primary angle-closure glaucoma (PACG) with A-Survival structure measurement to understand the quantitative relationship between anterior chamber depth, crystal thickness, axial length and relative crystal position in PACG and ciliary loop-induced glaucoma. Methods: The A-test was performed on 28 cases (56 eyes), 7 cases (8 eyes) of ciliary loop-induced glaucoma, and the contrast of the measured parameters the study. Results PACG was one of the objective indicators for the diagnosis of PACG with shallow anterior chamber (around 20 mm), short axial length (around 22 mm), thicker crystals (around 47 mm) and higher relative position of the lens (around 0 197). Compared with the pre-clinical eye, the acute anterior glaucoma in the acute glaucoma was more shallow, and the relative position of the crystal was more anterior. The anterior chamber of the glaucomatous glaucoma was the lightest (1 5mm or so), the shortest axial length (about 2 1mm) can be used as a ciliary loop-induced glaucoma “risk factors.” Conclusion: Survival measurements of A-type have important objective value in the diagnosis, diagnosis and prognosis of primary angle-closure glaucoma, especially in the ciliary loop.