Axial length measurements were obtained preoperatively and at the final follow-up. Axial length values were compared with those in a control group of children without cataract Conclusions No significant retardation or acceleration of axial growth occurred after congenital cataract surgery and IOL implantation. The AL in this group of patients followed a normal pattern, although the difference in AL between operated unilateral cataract eyes and control eyes and between operated unilateral cataract eyes and operated bilateral cataract eyes showed a trend toward significance.To study the axial length (AL) changes in children who had unilateral or bilateral congenital cataract surgery and intraocular lens (IOL) implantation when they were younger than 5 years.
Friday, October 30, 2009
Changes in Axial Length Growth After Congenital Cataract Surgery and Intraocular Lens Implantation in Child
Axial length measurements were obtained preoperatively and at the final follow-up. Axial length values were compared with those in a control group of children without cataract Conclusions No significant retardation or acceleration of axial growth occurred after congenital cataract surgery and IOL implantation. The AL in this group of patients followed a normal pattern, although the difference in AL between operated unilateral cataract eyes and control eyes and between operated unilateral cataract eyes and operated bilateral cataract eyes showed a trend toward significance.To study the axial length (AL) changes in children who had unilateral or bilateral congenital cataract surgery and intraocular lens (IOL) implantation when they were younger than 5 years.
Intraoperative Retinoscopy for Intraocular Lens Power Estimation in Cases of Combined Phacoemulsification and Silicone Oil Remova
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Journal of Cataract & Refractive Surgery
To study the application of intraoperative retinoscopy for intraocular lens (IOL) power calculation in combined cataract extraction and silicone oil removal.This study comprised patients with silicone oil–filled eyes and visually significant cataract who had combined cataract extraction by phacoemulsification and silicone oil removal by a standard method through the pars plana route. Retinoscopy was performed with a streak retinoscope, standard vertex distance of 13.0 mm, and distance of 50.0 cm. All eyes had in-the-bag implantation of a foldable IOL with an A-constant of 118.4. The IOL power was calculated using the Ianchulev formula as follows: R × 2.01449. Postoperative refraction was performed at 3 months, and the spherical equivalent was calculatedConclusion ;Intraoperative retinoscopy for IOL power calculation in combined cataract extraction and silicone oil removal gave satisfactory refractive outcomes, although further studies with more patients are required to confirm its usefulness and determine whether there are disadvantages.
Journal of Cataract & Refractive Surgery
To study the application of intraoperative retinoscopy for intraocular lens (IOL) power calculation in combined cataract extraction and silicone oil removal.This study comprised patients with silicone oil–filled eyes and visually significant cataract who had combined cataract extraction by phacoemulsification and silicone oil removal by a standard method through the pars plana route. Retinoscopy was performed with a streak retinoscope, standard vertex distance of 13.0 mm, and distance of 50.0 cm. All eyes had in-the-bag implantation of a foldable IOL with an A-constant of 118.4. The IOL power was calculated using the Ianchulev formula as follows: R × 2.01449. Postoperative refraction was performed at 3 months, and the spherical equivalent was calculatedConclusion ;Intraoperative retinoscopy for IOL power calculation in combined cataract extraction and silicone oil removal gave satisfactory refractive outcomes, although further studies with more patients are required to confirm its usefulness and determine whether there are disadvantages.
Comparison of Vacuum Rise Time, Vacuum Limit Accuracy, and Occlusion Break Surge of 3 New Phacoemulsification Systems
7/26/2009
Journal of Cataract & Refractive Surgery
To compare vacuum rise time, vacuum limit accuracy, and occlusion break surge of 3 new phacoemulsification machines.
The vacuum rise time under normal and enhanced aspiration modes, vacuum limit accuracy, and occlusion break surge of the Infiniti Vision System, Stellaris Vision Enhancement System, and WhiteStar Signature Phacoemulsification System were tested. Vacuum rise time and limit accuracy were measured at limit settings of 400 mm Hg and 600 mm Hg. Surge area was recorded at vacuum limit settings of 200 mm Hg, 300 mm Hg, 400 mm Hg, and 500 mm Hg.Conclusions Under controlled laboratory test conditions, the Infiniti had the fastest vacuum rise time, greatest vacuum limit accuracy at 400 mm Hg, and least occlusion break surge. These results can be explained by the lower compliance of the Infiniti system.
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answer
Journal of Cataract & Refractive Surgery
To compare vacuum rise time, vacuum limit accuracy, and occlusion break surge of 3 new phacoemulsification machines.
The vacuum rise time under normal and enhanced aspiration modes, vacuum limit accuracy, and occlusion break surge of the Infiniti Vision System, Stellaris Vision Enhancement System, and WhiteStar Signature Phacoemulsification System were tested. Vacuum rise time and limit accuracy were measured at limit settings of 400 mm Hg and 600 mm Hg. Surge area was recorded at vacuum limit settings of 200 mm Hg, 300 mm Hg, 400 mm Hg, and 500 mm Hg.Conclusions Under controlled laboratory test conditions, the Infiniti had the fastest vacuum rise time, greatest vacuum limit accuracy at 400 mm Hg, and least occlusion break surge. These results can be explained by the lower compliance of the Infiniti system.
>
answer
Augmentation of Macular Pigment following Implantation of Blue Light–Filtering Intraocular Lenses at the Time of Cataract Surgery
Journal: Investigative Ophthalmology and Visual Science
9/28/2009
Photo)-oxidative stress is believed to play a role in the pathogenesis of age-related macular degeneration (AMD), with the threshold for retinal damage being lowest for short-wavelength (blue) light. Macular pigment (MP), consisting of the carotenoids lutein (L), zeaxanthin (Z) and meso-Z, has a maximum absorption at 460 nm and protects the retina from (photo)-oxidative injury. This study was designed to investigate whether the blue light–filtering properties of the Alcon AcrySof Natural intraocular lens (ANIOL) implanted during cataract surgery affects MP optical density (MPOD).
CONCLUSIONS Customized HFP can reliably measure the MPOD spatial profile in the presence of lens opacity, and cataract surgery does not artifactually alter MPOD readings. This study also provides evidence that implanting an IOL that filters blue light is associated with augmentation of MPOD in the absence of raised serum concentrations of L and Z. However, further and longitudinal study is needed to assess whether the observed increase in MPOD after implantation of blue-filtering IOLs is associated with reduced risk of AMD development and/or progression.
9/28/2009
Photo)-oxidative stress is believed to play a role in the pathogenesis of age-related macular degeneration (AMD), with the threshold for retinal damage being lowest for short-wavelength (blue) light. Macular pigment (MP), consisting of the carotenoids lutein (L), zeaxanthin (Z) and meso-Z, has a maximum absorption at 460 nm and protects the retina from (photo)-oxidative injury. This study was designed to investigate whether the blue light–filtering properties of the Alcon AcrySof Natural intraocular lens (ANIOL) implanted during cataract surgery affects MP optical density (MPOD).
CONCLUSIONS Customized HFP can reliably measure the MPOD spatial profile in the presence of lens opacity, and cataract surgery does not artifactually alter MPOD readings. This study also provides evidence that implanting an IOL that filters blue light is associated with augmentation of MPOD in the absence of raised serum concentrations of L and Z. However, further and longitudinal study is needed to assess whether the observed increase in MPOD after implantation of blue-filtering IOLs is associated with reduced risk of AMD development and/or progression.
The Tan Endoglide(TM) Endothelium Insertion System
Angiotech Pharmaceuticals, Inc.
10 / 23 / 2009
VANCOUVER Angiotech Pharmaceuticals, Inc. , today announced the commercial launch of the Tan EndoGlide(TM)
"As less invasive cornea transplant techniques continue to evolve, new devices are needed to safely deliver donor tissue. The Tan EndoGlide is one of the first new devices on the market designed to help surgeons handle and insert endothelial cell tissue with minimal cell loss," said Steve Bryant, Senior Vice President, Sales and Marketing for Angiotech.
The Tan EndoGlide is a device used to facilitate insertion of a donor endothelium during Endothelial Keratoplasty. The device is used by Ophthalmologists adapting to newer techniques to replace diseased corneal endothelium. The Tan EndoGlide is specifically designed for use in Descemet's Stripping Endothelial Keratoplasty (DSEK) and Descemet's Stripping Automated Endothelial Keratoplasty (DSAEK) surgical procedures..... The patent pending cartridge design produces a "double-coil" loading of the donor tissue for minimal endothelial touch.
10 / 23 / 2009
VANCOUVER Angiotech Pharmaceuticals, Inc. , today announced the commercial launch of the Tan EndoGlide(TM)
"As less invasive cornea transplant techniques continue to evolve, new devices are needed to safely deliver donor tissue. The Tan EndoGlide is one of the first new devices on the market designed to help surgeons handle and insert endothelial cell tissue with minimal cell loss," said Steve Bryant, Senior Vice President, Sales and Marketing for Angiotech.
The Tan EndoGlide is a device used to facilitate insertion of a donor endothelium during Endothelial Keratoplasty. The device is used by Ophthalmologists adapting to newer techniques to replace diseased corneal endothelium. The Tan EndoGlide is specifically designed for use in Descemet's Stripping Endothelial Keratoplasty (DSEK) and Descemet's Stripping Automated Endothelial Keratoplasty (DSAEK) surgical procedures..... The patent pending cartridge design produces a "double-coil" loading of the donor tissue for minimal endothelial touch.
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