scholarly journals Pupil dynamics after in-the-bag versus anterior and retropupillary iris-fixated intraocular lens implantation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yanxiu Sun ◽  
Maximilian Hammer ◽  
Timur M. Yildirim ◽  
Ramin Khoramnia ◽  
Gerd U. Auffarth
Keyword(s):  
Intraocular Lens ◽  
Pupil Size ◽  
Surgical Techniques ◽  
Case Series ◽  
Case Series Study ◽  
Pupil Motility ◽  
Series Study ◽  
Iol Fixation ◽  
Iol Dislocation ◽  
Iris Claw

AbstractAn Intraocular Lens (IOL) fixated on the iris either anteriorly, as a phakic IOL, or posteriorly, as an aphakic IOL, can influence pupil motility. In this interventional case series study, we evaluated pupil size under different levels of illumination (scotopic = 0.04 lx, low-mesopic = 0.4 lx and high-mesopic = 4 lx) for anterior iris-claw IOL fixation for correcting myopia or hyperopia (IFPH), retropupillary iris-claw IOL fixation to correct aphakia or as treatment for late in-the-bag IOL dislocation/subluxation (IFRP), and capsular-fixation IOL in-the-bag implantation (IB). Pupil size was measured preoperatively for the IFPH- and IB-group as well as 6 months after surgery for all groups. We analyzed a total of 70 eyes: 22 eyes of 11 patients with phakic IOLs, 22 eyes of 20 patients in the IFRP group and 26 eyes of 13 patients in the IB group. Both IFPH and IB showed a smaller postoperative scotopic pupil size, compared with the preoperative values. When compared to postoperative values of IB and IFPH, IFRP showed a significantly smaller postoperative scotopic pupil size (IFPH: 5.89 ± 0.83 mm, IFRP: 4.37 ± 0.83 mm, IB: 5.34 ± 0.98 mm, p < 0.001) while no differences were seen at high-mesopic lighting. Neither of the surgical techniques seems to impair the constriction of the pupil.

Four petal evisceration versus standard technique: A retrospective study

2020 ◽  
pp. 112067212095016
Author(s):  
Stefano Ranno ◽  
Massimiliano Serafino ◽  
Paolo Nucci
Keyword(s):  
Surgical Techniques ◽  
Case Series ◽  
Standard Technique ◽  
Complication Rates ◽  
Inclusion Criteria ◽  
Implant Exposure ◽  
Case Series Study ◽  
Series Study ◽  
Low Rate

Purpose: To compare the four-petal evisceration technique and the standard evisceration technique. Methods: In this retrospective, comparative case series study, sixteen charts of patients fulfilled the inclusion criteria and were were reviewed. Orbital implant exposition and complication rates between the two surgical techniques were evaluated. Results: A total of 16 eye of 16 patients fulfilled the inclusion criteria and were included in the analysis (eight in the four petal group and eight in the standard evisceration group). During postoperative follow-up there were no cases of implant exposure or migration in the four-petal group and two cases (25%) of implant exposure in the standard evisceration group. Exposed orbital implants dimension were both 16 mm and patients eviscerated for phtisis bulbi All surgeries were uneventful, and there were no serious complications during the study. Conclusion: Four petal evisceration technique seems particularly useful in patients with phtisis bulbi because it allowed the placement of an implant significantly larger than the standard technique with low rate of esposition.

scholarly journals Long-term surgical outcomes of primary retropupillary iris claw intraocular lens implantation for the treatment of intraocular lens dislocation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Eun Young Choi ◽  
Chul Hee Lee ◽  
Hyun Goo Kang ◽  
Jae Yong Han ◽  
Suk Ho Byeon ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Pars Plana Vitrectomy ◽  
Case Series ◽  
Retrospective Case ◽  
Iol Implantation ◽  
Intraocular Lens Dislocation ◽  
Post Surgery ◽  
Pars Plana ◽  
Iol Dislocation ◽  
Iris Claw

AbstractWe aimed to investigate the efficacy and safety of primary retropupillary iris claw intraocular lens (R-IOL) implantation in patients with complete intraocular lens (IOL) dislocation. In this single-center retrospective case series, we reviewed the medical records of patients who underwent R-IOL implantation surgery with pars plana vitrectomy for the treatment of IOL dislocation between September 2014 and July 2019. The primary outcome was change in visual acuity (VA) up to 24 months postoperatively. The secondary outcomes included changes in intraocular pressure (IOP), refractive errors, and endothelial cell count (ECC) over the same period. Data of 103 eyes (98 patients) were analyzed. The mean uncorrected VA was significantly improved at one month postoperatively (− 0.69 logMAR, P < 0.001), compared to the preoperative value. IOP (− 2.3 mmHg, P = 0.008) and ECC (− 333.4 cells/mm2, P = 0.027) significantly decreased one month post-surgery and remained stable thereafter. Postoperative mean spherical equivalents were similar to the prediction error throughout the follow-up period. IOP elevation (n = 8, 7.8%), cystoid macular edema (n = 4, 3.9%), and dislocation of the R-IOL (n = 10, 9.7%) were managed successfully. Overall, primary R-IOL implantation with pars plana vitrectomy is effective and safe for correcting IOL dislocation due to various causes.

Review of Surgical Techniques for Posterior Chamber Intraocular Lens Fixation in the Absence of Capsular Lens Support

2015 ◽  
Vol 08 (02) ◽  
pp. 86 ◽  
Author(s):  
Jacqueline Ng ◽  
Soroosh Behshad ◽  
Marjan Farid ◽  
◽  
◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Surgical Techniques ◽  
Posterior Chamber ◽  
Scleral Tunnel ◽  
Recent Innovation ◽  
Posterior Chamber Intraocular Lens ◽  
Surgical Options ◽  
Iol Fixation ◽  
Iol Dislocation

This is a review of surgical options for posterior chamber intraocular lens (IOL) fixation in the absence of adequate capsular support. The indications, techniques, and outcomes for posterior chamber iris-sutured and scleral-fixated IOLs, including trans-scleral sutured and trans-scleral tunnel glued fixation, are reviewed. Iris-sutured IOL fixation may be appropriate in cases in which small corneal incisions with a foldable IOL are desired, but are only possible in cases of adequate iris tissue, and may be complicated by pupil ovaling and iris trauma, which can lead to prolonged inflammation in some studies. Scleral-sutured IOL fixation does not require robust iris tissue and decreases the risk for iris trauma, but is technically more demanding, may require larger incisions, and poses potentially more posterior segment complications. There are also ongoing concerns for suture exposure, erosion, and late suture breakage and IOL dislocation. Scleral tunnel-glued IOL fixation is a more recent innovation that avoids sutures and concerns for suture-related complications, and can be completed through smaller incisions with a foldable IOL. However, long-term studies are pending.

Evaluating Vitality and Periodontal Sensitivity of Teeth Adjacent to the Site of Open Sinus Lift Surgery before and after Treatment: A Case Series Study

2020 ◽  
Vol 30 (2) ◽  
pp. 77-81
Author(s):  
Amir Moeintaghavi ◽  
Negar Azami ◽  
Mohammad Sadegh Zohrevand ◽  
Farid Shiezadeh ◽  
Hamid Jafarzadeh ◽  
...  
Keyword(s):  
Case Series ◽  
Sinus Lift ◽  
Case Series Study ◽  
Before And After ◽  
Series Study

Perfil microbiológico en los pacientes con diagnóstico de sinusitis nosocomial hospitalizados en la Unidad de Cuidados Intensivos del Hospital de San José durante el período de Febrero de 2013 a Marzo de 2015. Microbiological profile in patients diagnosed with nosocomial sinusitis hospitalized in the Intensive Care Unit of the Hospital of San Jose during the period February 2013 to March 2015.

2018 ◽  
Vol 45 (4) ◽  
pp. 261-266
Author(s):  
Jorge Luis Alfredo Herrera Ariza ◽  
Mario Alejandro Villabón ◽  
Ángela Carolina Rojas Ruiz ◽  
Iván Fernando Moncada
Keyword(s):  
Disease Control ◽  
Maxillary Sinus ◽  
Case Series ◽  
San Jose ◽  
Study Materials ◽  
Case Series Study ◽  
Nosocomial Sinusitis ◽  
Centers For Disease Control ◽  
Microbial Agents ◽  
Series Study

Objetivo: Determinar los agentes microbianos más frecuentes en pacientes de UCI con diagnóstico de sinusitis nosocomial en el Hospital de San José, período de dos años. Diseño: Estudio observacional tipo serie de casos. Materiales y métodos: Se incluyeron pacientes mayores de 18 años con una estancia hospitalaria mayor a 48 horas, que desarrollaron sinusitis nosocomial de acuerdo a los criterios de los Centers for Disease Control (CDC). Uso de dos técnicas: punción y lavado de seno maxilar. Resultados: 19 pacientes que cumplen los criterios de sinusitis nosocomial. Edad promedio 55 años, predominio sexo masculino. El 94.7% tuvo sonda orogástrica, 89.5% intubación orotraqueal y 89.5% ventilación mecánica. Hubo aislamiento polimicrobiano de gram positivos, gram negativos, anaerobios y hongos. La mortalidad en UCI fue 32%. Conclusiones: Se presenta una adecuada sensibilidad al tratamiento con vancomicina y piperacilina tazobactam en esta patología. El rendimiento diagnóstico es igual al realizar lavado y punción del seno maxilar.Objetive: To determine the microbial agents on UCI patients who have beendiagnosed with nosocomial sinusitis at the San Jose Hospital, (Bogota, Colombia) in a two-year period. Design: Case series study. Materials and methods: Patients who were older than 18-year olds, with a hospitalization longer than 48 hours who developed nosocomial sinusitis, according to the criteria established by the Centers for Disease Control (CDC) were included. Two techniques were employed for data collection: puncture and maxillary sinus wash. Results: 19 patients fulfill the criteria requirements for nosocomial sinusitis. Average age was 55 years old. Population mostly was composed by male individuals. 94.7% had a gastric tube intervention; 89.5% had tracheal intubation 89.5% mechanical ventilation. Polymicrobial isolation with gram positive, gram negative, anaerobic and fungi were identified. Mortality in critical care unites was 32%. Conclusions: An adequate sensitivity to treatment with vancomycin and piperacillin tazobactam was evidenced in this pathology.To perform a washing or maxillary sinus puncture had the same efficiency fordiagnosing this disease.

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