Chern S, Yung C W
Indiana University Medical Center, Department of Ophthalmology, Indianapolis 46202, USA.
Ophthalmic Surg. 1995 Mar-Apr;26(2):114-6.
Mechanisms of posterior lens dislocation during phacoemulsification have been suggested, but the actual mechanism involved has not been demonstrated. Chart reviews of cataract surgeries performed at Indiana University from 1991 until the present identified nine cases of posterior lens dislocation that occurred during phacoemulsification. In four, the procedure was converted early to a can-opener capsulotomy. Cadaver eye studies showed the role of an imperfect capsulorhexis in extending tears while a "trap door" was being formed for posterior nuclear dislocation during phacoemulsification.
白内障超声乳化手术中晶状体后脱位的机制已被提出，但实际涉及的机制尚未得到证实。对1991年至今在印第安纳大学进行的白内障手术病历回顾发现了9例超声乳化手术期间发生的晶状体后脱位病例。其中4例手术早期改为开罐式撕囊术。尸体眼研究表明，不完全连续环形撕囊在超声乳化手术中形成后核脱位的“活板门”时，在延长撕裂方面所起的作用。
