Comparison of two Nd:YAG laser posterior capsulotomy: cruciate pattern vs circular pattern with vitreous strand cutting

AIM: To investigate the effects and safety of neodymium: yttrium-aluminium-garnet(Nd:YAG) laser posterior capsulotomy with vitreous strand cuttingMETHODS: A total of 40 eyes of 37 patients with symptomatic posterior capsular opacity(PCO) were included in this prospective randomized study and were randomly subjected to either cruciate pattern or round pattern Nd:YAG posterior capsulotomy with vitreous strand cutting(modified round pattern). The best corrected visual acuity(BCVA), intraocular pressure(IOP), refractive error, endothelial cell count(ECC), anterior segment parameters, including anterior chamber depth(ACD) and anterior chamber angle(ACA) were measured before and 1 mo after the laser posterior capsulotomy. RESULTS: In both groups, the BCVA improved significantly(P<0.001 for the modified round pattern group, P=0.001 for the cruciate pattern group); the IOP and ECC did not significantly change. The ACD significantly decreased(P<0.001 for both) and the ACA significantly increased(P=0.001 for the modified round pattern group and P=0.034 for the cruciate group). The extent of changes in these parameters was not significantly different between the groups.CONCLUSION: Modified round pattern Nd:YAG laser posterior capsulotomy is an effective and safe method for the treatment of PCO. This method significantly changes the ACD and ACA, but the change in refraction is not significant. Modified round pattern Nd:YAG laser posterior capsulotomy can be considered a good alternative procedure in patients with symptomatic PCO.

Unilateral spontaneous lens absorption and dislocation of the empty capsular bag into the anterior chamber

Dear Editor,C ases involving spontaneous aphakic change in the visual axis are rare in Outpatient Clinics.However,we can often ascertain the past events affecting the patient’s eye by examining its current status.The placement of the