Cataract and Cornea Services, Chandraprabha Eye Hospital, Jorhat, Assam, India.
Cataract and Cornea Services, Chandraprabha Eye Hospital, Jorhat, Assam; Department of Ophthalmology, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry, India.
Indian J Ophthalmol. 2022 Oct;70(10):3673-3676. doi: 10.4103/ijo.IJO_1149_22.
Phacoemulsification in soft cataracts can be challenging due to the lack of rigid cleavage planes and the inability to crack. We describe a new phacoemulsification technique for dealing with soft cataracts using high vacuum and zero energy. Following capsulorhexis and hydrodissection, we introduced the phacoemulsification probe, keeping the torsional and longitudinal power at zero. A central groove was created in sculpting mode. We held the nucleus with adequate vacuum in chop mode and divided the nucleus. Then, we rotated and chopped the nucleus similarly into small pieces without using any power. For emulsification, we increased the vacuum to 600 mmHg and then shredded and stuffed the pieces into the phaco probe by the chopper. A newer generation phaco machine with active fluidic system and monitored pressurized infusion helps the surgeon control the intraocular pressure (IOP) and hold the nucleus with vacuum alone, allowing chopping and emulsifying of the pieces without any energy.
在处理软白内障时，由于缺乏刚性的分裂面和无法破解，超声乳化可能具有挑战性。我们描述了一种新的超声乳化技术，用于处理软白内障，使用高真空和零能量。在完成撕囊和水分离后，我们以零扭力和纵向力引入超声乳化探头。在塑形模式下创建中央凹槽。在切核模式下用足够的真空夹持核，并将核分割开。然后，我们以相同的方式旋转和切割核，而不使用任何能量将其切成小块。对于乳化，我们将真空度增加到 600mmHg，然后用切刀将碎片撕成碎片并塞进超声乳化探头。新一代的超声乳化仪具有主动流体制动系统和监测的加压输注，有助于外科医生控制眼内压（IOP），并仅用真空夹持核，允许在不使用任何能量的情况下切割和乳化碎片。
