Influence of pars plana vitrectomy on the length of lens zonules and anterior chamber depth
Journal Title: Guoji Yanke Zazhi - Year 2018, Vol 18, Issue 7
Abstract
AIM: To quantitatively assess the influence of pars plana vitrectomy(PPV)on the length of lens zonules and anterior chamber depth(ACD).<p>METHODS: The medical records of 87 cataract patients(88 eyes)were retrospectively reviewed. Forty-three patients(44 eyes)with previous PPV were included in the study group, and 44 patients(44 eyes)without a history of PPV were served as control group. Length of zonules and anterior chamber depth(ACD)were quantitative analyzed based on the data from ultrasonic biomicroscopy(UBM)and IOL Master examinations respectively. <p>RESULTS: The average length of zonules in study and control group were 1.09±0.24mm and 0.78±0.22mm, respectively, and the difference was statistically significant(<i>P</i><0.05). The ACD of the two groups were 3.25±0.39mm and 3.44±0.48mm, respectively, and a statistical difference was observed(<i>P</i><0.05). The length of zonules in the control group was positively correlated with the ACD(<i>r</i>=0.468, <i>P</i>=0.001), however, this was not the case in the study group(<i>r</i>=0.173, <i>P</i>=0.263). <p>CONCLUSION: Previous vitrectomy may cause changes in zonular length, which may imply a possibly weakened zonules, especially for patients with the axial length less than 29mm. The change in anterior chamber depth in patients with previous PPV may not be correspondent to that in the length of zonules. The findings of our study suggest that preoperative conditions of zonules and anterior chamber should be fully understood to reduce the related complications and to improve the safety and efficiency of cataract surgery after pars plana vitrectomy.
Authors and Affiliations
Wei Fan
Keywords
Related Articles
- EP ID EP553695
- DOI 10.3980/j.issn.1672-5123.2018.7.19
- Views 140
- Downloads 0
Efficacy of fenofibrate combined with 23G minimally invasive vitrectomy for diabetic retinopathy
AIM: To explore the application effect of fenofibrate combined with 23G minimally invasive vitrectomy in patients with diabetic retinopathy(DR). <p>METHODS: Totally 102 DR patients(102 patients)treated in our hospital fr...
Effects of different does intravitreous triamcinolone acetonide for macular edema secondary to retinal vein occlusion
AIM: To compare the clinical efficacy and complications of intravitreal injection of 1mg, 2mg and 4mg triamcinolone acetonide(TA)in the treatment of macular edema secondary to retinal vein occlusion, and to explore effec...
Transposition of internal limiting membrane with a non-inverted flap technique for large macular hole
AIM:To explore the effectiveness of a new non-inverted pedicle internal limiting membrane(ILM)flap transposition technique in the treatment of large macular holes(MH).<p>METHODS: This was a prospective pilot study which...
Analysis of the refraction error and the influencing factors after phacoemulsification in acute primary angle-closure glaucoma with cataract
AIM: To compare the refraction error(RE)3mo after phacoemulsification combined with intraocular lens implantation(PHACO+IOL)between patients with acute primary angle-closure glaucoma(APACG)with cataract(APACG group)and p...
Efficacy of intravitreal Conbercept combined with retinal photocoagulation in the treatment of DR complicated with DME
AIM: To evaluate the efficacy of intravitreal Conbercept combined with retinal photocoagulation in treating diabetic retinopathy(DR)with diabetic macular edema(DME). <p>METHODS: Prospective case study. Totally 48 patient...