scholarly journals Yellow Pattern 577-nm Micropulse Laser: Treatment of Macular Edema from Radiation Retinopathy – A Case Report

2017 ◽  
Vol 8 (1) ◽  
pp. 81-86 ◽  
Author(s):  
James G. Wong ◽  
Trang T.H. Nguyen
Keyword(s):  
Visual Acuity ◽  
Case Report ◽  
Macular Edema ◽  
Treatment Session ◽  
Single Treatment ◽  
Radiation Retinopathy ◽  
Micropulse Laser ◽  
Minimal Scarring ◽  
Asian Male ◽  
Single Treatment Session

We report a case of a 60-year-old Asian male who developed radiation retinopathy 23 years after initial radiotherapy for nasopharyngeal carcinoma and was successfully treated with yellow pattern 577-nm micropulse laser. Secondary macular edema and visual acuity improved following a single treatment session with minimal scarring. Yellow pattern micropulse laser is a safe and effective treatment for macular edema secondary to radiation retinopathy.

scholarly journals Micropulse laser in patients with refractory and treatment-naïve center–involved diabetic macular edema: short terms visual and anatomic outcomes

2021 ◽  
Vol 13 ◽  
pp. 251584142097911
Author(s):  
Diego Alejandro Valera-Cornejo ◽  
Marlon García-Roa ◽  
Jaime Quiroz-Mendoza ◽  
Alejandro Arias-Gómez ◽  
Paulina Ramírez-Neria ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Diabetic Macular Edema ◽  
Macular Thickness ◽  
Thickness Change ◽  
Macular Volume ◽  
Naive Group ◽  
Micropulse Laser ◽  
Refractory Diabetic Macular Edema ◽  
Treatment Naïve

Purpose: The purpose of the study is to describe visual and anatomic outcomes of 5774nm micropulse laser photocoagulation in eyes with either treatment-naïve or refractory diabetic macular edema (DME) at 3 months. Methods: This was a prospective case series that recruited 23 consecutive patients (33 eyes) with center-involved DME that was either treatment-naïve or had not responded to prior treatment. Micropulse therapy was performed with the Easy Ret 577 (Quantel Medical, Cournon d’Auvergne, France) diode laser in a high-density manner in eyes with treatment-naïve or refractory DME. The primary outcome was the change of best-corrected visual acuity (BCVA; logMAR) at 1 and 3 months. Secondary outcomes were changes in the central macular thickness (CMT), thickness area, macular volume, and macular capillary leakage at 1 and 3 months. Results: There were no significant changes in BCVA at 3 months, with mean ± standard deviation (SD) of −0.08 ± 0.01 ( p = 0.228) and + 0.01 ± 0.01 ( p = 0.969) for treatment-naïve and refractory groups, respectively. The change in CMT at 3 months was statistically but not clinically significant in the treatment-naïve group only (mean ± SD; –30 ± 130 µm; p = 0.011). The macular volume and area thickness change were not statistically significant ( p = 0.173 and p = 0.148 for macular volume and area thickness, respectively) in the treatment-naïve group. There was no difference concerning the leakage area in both groups. No adverse events were reported. Conclusion: We concluded that micropulse 577nm laser therapy maintained the visual acuity and macular thickness at 3 months in both treatment-naïve and refractory DME.

Comparison of ranibizumab and subthreshold micropulse laser in treatment of macular edema secondary to branch retinal vein occlusion

2018 ◽  
Vol 28 (6) ◽  
pp. 690-696 ◽  
Author(s):  
Yelda Buyru Özkurt ◽  
Sezen Akkaya ◽  
Sibel Aksoy ◽  
Mert Hakan Şimşek
Keyword(s):  
Visual Acuity ◽  
Macular Edema ◽  
Laser Treatment ◽  
Retinal Vein Occlusion ◽  
Branch Retinal Vein Occlusion ◽  
Intravitreal Ranibizumab ◽  
Micropulse Laser ◽  
Vein Occlusion ◽  
Subthreshold Micropulse Laser ◽  
The Mean

Purpose: To compare the effects of intravitreal ranibizumab injection and yellow (577 nm) subthreshold micropulse laser treatment in patients with macular edema following non-ischemic branch retinal vein occlusion. Methods: The medical records of 51 patients who underwent intravitreal ranibizumab (0.5 mg) injection or subthreshold micropulse laser for the treatment of macular edema due to branch retinal vein occlusion were retrospectively reviewed. Subthreshold micropulse laser was administered with a 10% duty cycle, 100 μm spot diameter, 200 ms exposure time. The patients received an injection or laser treatment at baseline and were, then, retreated as needed and were followed for 12 months. The mean best corrected visual acuity changes over the follow-up and the decrease in the mean central macular thickness were evaluated. Results: A total of 27 and 24 patients were assigned to intravitreal ranibizumab and subthreshold micropulse laser subgroups, respectively. The mean number of treatment was 3.81 of intravitreal ranibizumab group and 1.5 of subthreshold micropulse laser group (p < 0.05). The subgroups were similar with regard to the mean score of best corrected visual acuity at baseline, at 1, 6, and 12 months (p > 0.05). The decrease in the mean central macular thickness was significant in both intravitreal ranibizumab and subthreshold micropulse laser groups at 1, 6, and 12 months than that of values at baseline (p < 0.05). No new ocular or systemic adverse events were observed. Conclusion: Our study results showed that intravitreal ranibizumab or yellow subthreshold micropulse laser treatment for macular edema due to branch retinal vein occlusion was not found to be superior to each other for reducing macular thickness and increasing visual acuity for 1-year period. Based on these results, subthreshold micropulse laser may be a useful alternative approach in the treatment of macular edema secondary to branch retinal vein occlusion.

Gamma knife surgery for refractory postherpetic trigeminal neuralgia: targeting in one session both the retrogasserian trigeminal nerve and the centromedian nucleus of the thalamus

2005 ◽  
Vol 102 (Special_Supplement) ◽  
pp. 276-282 ◽  
Author(s):  
Marcus F. Keep ◽  
Paul A. DeMare ◽  
Lynn S. Ashby
Keyword(s):  
Pain Relief ◽  
Trigeminal Neuralgia ◽  
Trigeminal Nerve ◽  
Treatment Session ◽  
Single Treatment ◽  
Content Type ◽  
Centromedian Nucleus ◽  
Single Treatment Session ◽  
Fine Print

Object. The authors tested the hypothesis that two targets are needed to treat postherpetic trigeminal neuralgia (TN): one in the trigeminal nerve for the direct sharp pain and one in the thalamus for the diffuse burning pain. Methods. Three patients with refractory postherpetic TN were treated with gamma knife surgery (GKS) through a novel two-target approach. In a single treatment session, both the trigeminal nerve and centromedian nucleus were targeted. First, the trigeminal nerve, ipsilateral to the facial pain, was treated with 60 to 80 Gy. Second, the centromedian nucleus was localized using standard coordinates and by comparing magnetic resonance images with a stereotactic atlas. A single dose of 120 to 140 Gy was delivered to the target point with a single 4-mm isocenter. Patients were followed clinically and with neuroimaging studies. Pain relief was scored as excellent (75–100%), good (50–75%), poor (25–50%), or none (0–25%). Follow up ranged from 6 to 53 months. There were no GKS-related complications. Two patients died of unrelated medical illnesses but had good or excellent pain relief until death. One patient continues to survive with 44 months follow up and no decrease in pain intensity, but with a decreased area of pain. Conclusions. Combined GKS of the centromedian nucleus and trigeminal nerve in a single treatment session is feasible and safe, and the effect was promising. A larger study is required to confirm and expand these results.

scholarly journals Postsurgical Cystoid Macular Edema following Posterior Chamber Toric Phakic Intraocular Lens Implantation Surgery: A Case Report

2015 ◽  
Vol 6 (2) ◽  
pp. 223-227 ◽  
Author(s):  
Julide Canan Umurhan Akkan ◽  
Kemal Tuncer ◽  
Ahmet Elbay
Keyword(s):  
Visual Acuity ◽  
Case Report ◽  
Macular Edema ◽  
Intraocular Lens ◽  
Cystoid Macular Edema ◽  
Posterior Chamber ◽  
Phakic Intraocular Lens ◽  
Distance Visual Acuity ◽  
Initial Surgery ◽  
The Right

Purpose: To describe a case of cystoid macular edema (CME) developing after posterior chamber toric phakic intraocular lens (PIOL) implantation. Methods: Case report. Results: A 33-year-old male underwent implantation of toric implantable collamer lenses (ICL), a new generation of PIOLs, for both eyes. Preoperative best spectacle-corrected distance visual acuity (BCVA) was 20/25 in the right eye and 20/32 in the left eye, with a manifest refraction of -9.25 -4.0 × 4° and -9.75 -4.25 × 171°, respectively. On day 1 postoperatively, the left eye had an uncorrected distance visual acuity (UDVA) of 20/60 with a refraction of +2.0 -3.5 × 11°. Despite the rotation of the PIOL, the cylindrical refractive component persisted in the left eye with a refraction of +2.0 -3.5 × 11°. Two weeks after the initial surgery, he presented with a decrease in his visual acuity in the left eye. The UDVA and BCVA were both 20/100 in the left eye with a refraction of +2.0 -4.25 × 3°. Dilated fundus examination and macular optical coherence tomography revealed a CME in the left eye. Following topical nepafenac therapy and explantation of the ICL, we observed a complete resolution of the CME at 3 months with an improvement in BCVA to 20/32 in the left eye. Conclusions: To our knowledge, this is the first reported case of postsurgical CME following toric ICL implantation. In cases of phakic eyes with an intact posterior capsule, postsurgical CME can develop, thus highlighting the purpose of this report.

scholarly journals The Digital Abutment Check: An Improvement of the Fully Digital Workflow

2020 ◽  
Vol 2020 ◽  
pp. 1-14
Author(s):  
Sebastian Hinz ◽  
Daniel Ellmann ◽  
Christian Wegner ◽  
Wolfgang Bömicke ◽  
Tobias Bensel
Keyword(s):  
Minimally Invasive ◽  
Treatment Session ◽  
Second Phase ◽  
Single Treatment ◽  
Data Set ◽  
Digital Workflow ◽  
Implant Surgery ◽  
Effective Use ◽  
Single Treatment Session ◽  
Existing Data

By using modern digitalization techniques, an existing denture can be digitized and aid the provision of a new implant-supported denture according to a fully digital workflow. This includes fully navigated implant surgery and results in an immediately provided prosthetic restoration. However, even with the current digital workflow, it is challenging to achieve a definitive prosthetic restoration in a single treatment session. In order to achieve a definitive denture in as few treatment sessions as possible, we have implemented the digital abutment test. This test modified the existing data set and determined the final restoration. In the present case, the preexisting maxillary removable complete denture was converted into a fixed immediate restoration using the fully digital workflow. The workflow is divided into two treatment phases, each with three treatment sessions, where part of the second phase involves an innovative digital abutment check. The illustrated case shows an effective use of current digital possibilities. Special attention was also paid to a minimally invasive course of therapy.

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