The Experts below are selected from a list of 69 Experts worldwide ranked by ideXlab platform
Pawan N. Jarwal - One of the best experts on this subject based on the ideXlab platform.
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Study of Visual Outcome after Neodymium YAG Laser Therapy in Posterior Capsular Opacity
Journal of Clinical & Experimental Ophthalmology, 2021Co-Authors: Pawan N. JarwalAbstract:Purpose: Posterior capsular opacification is the most common long term complication of modern IOL surgery. Neodymium YAGLaser remains the cornerstone of its treatment .In this study, an attempt was made to study the visual outcome following Neodymium YAG Laser capsulotomy Methods:This was a prospective study of 50 patients conducted inHospital , attached to R.U.H.S.-CMS Medical College ,Jaipur. All patients aged 50 years and above, attending the regular OPD who presented with visually significant posterior capsular opacification were treated with Neodymium YAGLaser capsulotomy. After capsulotomy, follow up was done 1 – 4 hour after Capsulotomy, day one, end of first week, end of first month and at the end of minimum 3 months. During follow-up the visual acuity Intra Ocular Pressure (IOP) and other relevant tests were conducted and appropriate intervention were made during the follow-up period. Results:Inmystudyduration ofonsetofsymptoms ofPosteriorcapsularopacity (PCO)ismorebetween2-3years period after surgery.Pearls type of isPosteriorcapsular opacity more when compared to fibrous type. Most of the patients treated for Posterior capsular opacity with Neodymium: YAG Laser capsulotomy showed an improvement in visual acuity .There was no incidence of major complications in patients treated with procedure. Conclusion: Neodymium-YAG Laser therapy presents the advantage of a non-invasive, effective, relatively safe technique to manage intact posterior capsule that opacity post operatively.
Hilel Lewis - One of the best experts on this subject based on the ideXlab platform.
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noncontact transscleral Neodymium YAG Laser photocoagulation of the pigmented rabbit retina
Archives of Ophthalmology, 1992Co-Authors: Mark Michels, John G Flannery, Hilel LewisAbstract:• We studied the applicability of transscleral delivery of noncontact Neodymium-YAG Laser in its free-running mode (10 milliseconds) in creating chorioretinal lesions in 16 rabbits. After the Laser was applied, the eyes were studied by indirect ophthalmoscopy, light microscopy, and electron microscopy. Lesions generated with low-energy and defocus settings were characterized by intact sclera, variable clumping of the pigmented choroidal lamellae, destruction of choriocapillaris, and loss of the retinal pigment epithelium. In the central region of Laser exposure, vacuolization of the retinal pigment epithelium and outer retina were observed. No scleral changes were noted. In contrast with lesions produced with high-energy and/or high-defocus settings, these lesions were produced without hemorrhagic phenomena or breaks in the neurosensory retina. These data demonstrate that noncontact transscleral Neodymium-YAG photocoagulation is capable of very localized, selective destruction of the retina and choroid and deserves further study.
Yen-chih Chen - One of the best experts on this subject based on the ideXlab platform.
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Treatment of vitreous floaters with Neodymium YAG Laser.
The British journal of ophthalmology, 1993Co-Authors: Wu-fu Tsai, Yen-chih ChenAbstract:Fifteen cases of vitreous floaters with serious psychological reactions have been collected. By using a direct ophthalmoscope, causal vitreous opacities were detected. The opacities were photodisrupted with Neodymium YAG Laser, using energy levels of 5 to 7.1 mJ and total energy 71 to 742.0 mJ. Symptoms completely disappeared immediately after treatment in all 15 cases. There were no intraoperative or postoperative complications noted during a follow up period of at least 1 year. To our knowledge, the use of Neodymium YAG Laser to treat vitreous floaters has not been previously described. Our initial experience indicates that the treatment is simple, safe, and effective.
Mark Michels - One of the best experts on this subject based on the ideXlab platform.
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noncontact transscleral Neodymium YAG Laser photocoagulation of the pigmented rabbit retina
Archives of Ophthalmology, 1992Co-Authors: Mark Michels, John G Flannery, Hilel LewisAbstract:• We studied the applicability of transscleral delivery of noncontact Neodymium-YAG Laser in its free-running mode (10 milliseconds) in creating chorioretinal lesions in 16 rabbits. After the Laser was applied, the eyes were studied by indirect ophthalmoscopy, light microscopy, and electron microscopy. Lesions generated with low-energy and defocus settings were characterized by intact sclera, variable clumping of the pigmented choroidal lamellae, destruction of choriocapillaris, and loss of the retinal pigment epithelium. In the central region of Laser exposure, vacuolization of the retinal pigment epithelium and outer retina were observed. No scleral changes were noted. In contrast with lesions produced with high-energy and/or high-defocus settings, these lesions were produced without hemorrhagic phenomena or breaks in the neurosensory retina. These data demonstrate that noncontact transscleral Neodymium-YAG photocoagulation is capable of very localized, selective destruction of the retina and choroid and deserves further study.
Auran J - One of the best experts on this subject based on the ideXlab platform.
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The Barrier Function in Neodymium-YAG Laser Capsulotomy
Archives of Ophthalmology, 1995Co-Authors: Trokel S, Auran JAbstract:Background: Complications following Neodymium (Nd)-YAG Laser capsulotomy have been attributed to damage to the capsule and vitreous face. Objectives: To measure the disruption of the anteriorposterior extracapsular barrier complex induced by Nd-YAG Laser capsulotomy and to determine how it might be minimized, using a fluorophotometer. Design: Prospective study of 21 eyes undergoing Nd-YAG Laser capsulotomy and cross-sectional comparison with 15 pseudophakic eyes with clear capsules. Setting: University-based clinical practice. Intervention: Neodymium-YAG Laser posterior capsulotomy per study protocol. Main Outcome Measure: Change in extracapsular barrier efficiency as measured by fluorophotometry. Results: Multivariate regression demonstrated that both anterior vitreous disruption and absence of a posterior chamber intraocular lens (aphakia) were significantly correlated with loss of barrier efficiency, whereas capsulotomy size was not. The anterior vitreous was judged to be undamaged in 67% of eyes treated by the study protocol. However, all myopic eyes sustained damage. Opacification of the posterior capsule itself was also associated with mild loss of barrier function even before capsulotomy, compared with the clear-capsule group. Glaucoma occurred more frequently when barrier efficiency was lost postoperatively. Conclusion: Damage to the extracapsular barrier complex by Nd-YAG Laser capsulotomy is minimized when the anterior vitreous is preserved. The study treatment protocol may be useful in limiting this damage and in reducing complications.
