Morphologic Changes in the Anterior Segment using Ultrasound Biomicroscopy after Cataract Surgery and Intraocular Lens Implantation

2016 ◽  
Vol 27 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Erkan Ünsal ◽  
Kadir Eltutar ◽  
İlkay K. Muftuoglu
Keyword(s):  
Intraocular Lens ◽  
Trabecular Meshwork ◽  
Anterior Segment ◽  
Crystalline Lens ◽  
Ultrasound Biomicroscopy ◽  
Intraocular Lens Implantation ◽  
Ciliary Process ◽  
Lens Implantation ◽  
Anterior Segment Parameters ◽  
Morphologic Changes

Purpose To evaluate morphologic changes in the anterior segment using ultrasound biomicroscopic imaging (UBM) after phacoemulsification and foldable intraocular lens implantation (IOL). Methods Thirty-six patients with a mean age of 68.68 ± 8.44 years (range 51-89) who had phacoemulsification and foldable IOL implantation were included in this prospective study. Several anterior segment parameters including aqueous depth (AQD), trabecular meshwork-iris angle (TIA), ciliary body thickness (CBT), sclera thickness (ST), trabecular meshwork-ciliary process distance (T-CPD), iris-ciliary processes distance (I-CPD), and iris thickness (IT) were measured using UBM preoperatively and at postoperative month 2. Results There was a significant increase in AQD (p<0.001) and TIA (p<0.001) at postoperative month 2. However, CBT, ST, T-CPD, I-CPD, and IT did not significantly change (p>0.05) during the study period. Conclusions Removal of the crystalline lens results in change in the anterior segment parameters. Our results confirmed that UBM is a helpful option for the analysis of anterior segment structures both qualitatively and quantitatively.

scholarly journals Clear Lens Phacoemulsification with Continuous Curvilinear Capsulorhexis and Foldable Intraocular Lens Implantation for the Treatment of a Patient with Bilateral Anterior Lenticonus due to Alport Syndrome

2008 ◽  
Vol 36 (6) ◽  
pp. 1440-1444 ◽  
Author(s):  
YB Liu ◽  
SJ Tan ◽  
ZY Sun ◽  
X Li ◽  
BY Huang ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Alport Syndrome ◽  
Anterior Segment ◽  
Sensorineural Deafness ◽  
Intraocular Lens Implantation ◽  
Therapeutic Choice ◽  
Anterior Lens Capsule ◽  
Quality Of Vision ◽  
Lens Implantation ◽  
Anterior Lenticonus

The case of a 29-year-old man is reported who presented with a gradually progressive, painless decrease in vision over 10 years. Anterior segment examination with a slit lamp revealed anterior lenticonus in both eyes. The patient had previously been diagnosed with bilateral sensorineural deafness, however investigations revealed microscopic haematuria and renal insufficiency that subsequently led to a diagnosis of classical Alport syndrome. Since the patient's quality of vision was severely affected by the bulging anterior lens capsule, surgical treatment was required. Clear lens phacoemulsification with continuous curvilinear capsulorhexis and foldable intraocular lens implantation were performed in each eye 2 days apart. One week after surgery, visual acuity was excellent in both eyes. Clear lens phacoemulsification with continuous curvilinear capsulorhexis and foldable intraocular lens implantation was a safe and effective therapeutic choice in this patient for the management of anterior lenticonus due to Alport syndrome.

scholarly journals Comparative Study of the Effects of 1% Atropine on the Anterior Segment

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Yue Zhou ◽  
Xiao Bo Huang ◽  
Qi Cai ◽  
Jun Jie Li ◽  
Yao Jia Xiong ◽  
...  
Keyword(s):  
Anterior Chamber ◽  
Univariate Analysis ◽  
Anterior Segment ◽  
Anterior Chamber Depth ◽  
Muscle Thickness ◽  
Ultrasound Biomicroscopy ◽  
Cross Sectional ◽  
Ciliary Process ◽  
Before And After ◽  
Anterior Segment Parameters

Purpose. To investigate the influences of atropine on changes in anterior segment geometry, as measured by ultrasound biomicroscopy in children. Methods. A prospective observational study was performed. Anterior segment parameters were obtained by UBM before and after the instillation of 1% atropine. Univariate linear regression was performed to identify the variables contributing to the changes in the trabecular meshwork-iris angle (TIA). Results. The study included 21 boys and 37 girls with a mean age of 10.79 ± 2.53 years. Anterior chamber parameters including the central anterior chamber depth, TIA, angle opening distance at 500 μm from the scleral spur, iris thickness 750 μm and 1500 μm from the scleral spur, trabecular-ciliary angle (TCA), trabecular-ciliary process distance, sclera-iris angle (SIA), and sclera-ciliary process angle significantly increased after cycloplegia ( P < 0.05 ). In contrast, the lens vault, iris cross-sectional area, and maximum ciliary muscle thickness significantly decreased after cycloplegia. Univariate analysis identified the change in TCA and the change in SIA and the TIA before mydriasis as determinants of the change in TIA. Conclusions. Atropine causes statistically significant changes in various anterior segment parameters in children. The change in anterior chamber angle is associated with the change in TCA and the change in SIA and the TIA before mydriasis.

scholarly journals Toxic Anterior Segment Syndrome after Foldable Artiflex Iris-Fixated Phakic Intraocular Lens Implantation

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Lucien A. M. van Philips
Keyword(s):  
Intraocular Lens ◽  
Anterior Segment ◽  
Topical Steroid ◽  
Steroid Treatment ◽  
Surgical Instruments ◽  
Intraocular Lens Implantation ◽  
Phakic Intraocular Lens ◽  
Lens Implantation ◽  
Toxic Anterior Segment Syndrome

Toxic anterior segment syndrome (TASS) developed in four cases after uneventful implantation of a foldable iris-fixated phakic intraocular lens (pIOL). Two cases occurred sequentially in one patient. The TASS subsided without complications in all cases after intensive topical steroid treatment. A multitude of possible causes is considered for the occurrence of these TASS cases. From the sterilization and cleaning of surgical instruments to the possibility of endotoxines in ophthalmic viscosurgical devices (OVD). These rare cases should alert the surgeon to the possibility of TASS after pIOL implantation.

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