scholarly journals Cataract Surgery in Post-Vitrectomized Eyes

2021 ◽  
Author(s):  
Olivia Esteban ◽  
Javier Mateo ◽  
Paula Casas ◽  
Javier Lara ◽  
Javier Ascaso
Keyword(s):  
Cataract Surgery ◽  
Pars Plana Vitrectomy ◽  
Surgical Techniques ◽  
Cataract Extraction ◽  
Posterior Capsule ◽  
Power Calculation ◽  
Refractive Errors ◽  
Special Challenge ◽  
Pars Plana ◽  
Potential Factors

Because of the application of vitreoretinal surgical techniques to a broader range of posterior segment diseases and because cataract develops frequently in postvitrectomy eyes, cataract surgeons should be familiar with the challenges of cataract extraction in vitrectomized eyes. Cataract surgery after pars plana vitrectomy significantly improves visual acuity in 85% of cases, limited by retinal comorbidity and surgical complications. However, despite recent advances, this surgery remains a special challenge. The cataract surgeon can prepare for these challenges with awareness of such potential factors as an excessively mobile posterior capsule, silicon oil removal and special considerations concerning intraocular lens selection and power calculation. And consider the postoperative complications as posterior capsule opacification or refractive errors.

scholarly journals Nd:YAG Capsulotomy after Phacoemulsification in Vitrectomized Eyes: Effects of Pars Plana Vitrectomy on Posterior Capsule Opacification

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Jong Hwa Jun ◽  
Kwang Soo Kim ◽  
Sung Dong Chang
Keyword(s):  
Cataract Surgery ◽  
Medical Records ◽  
Pars Plana Vitrectomy ◽  
Posterior Capsule Opacification ◽  
Posterior Capsule ◽  
Time Interval ◽  
Time Intervals ◽  
Nd:Yag Laser Capsulotomy ◽  
Pars Plana ◽  
Hydrophobic Acrylic

To compare the progression of posterior capsule opacification (PCO) in patients who required Nd:YAG laser capsulotomy following either combined cataract surgery with pars plana vitrectomy (PPV; C-CV), sequential cataract surgery after PPV (S-CV), or cataract surgery alone (CA). The medical records of 321 patients (408 eyes) who underwent Nd:YAG capsulotomy were retrospectively evaluated. The CA group had a significantly longer time interval from cataract surgery to capsulotomy than that of both the CV group(P=0.006)and the S-CV(P=0.013)and C-CV(P=0.042)subgroups when age-matched comparisons were used. CV patients who implanted a hydrophobic acrylic IOL had shorter time intervals than those of CA patients(P=0.028). CV patients had larger hazard of earlier capsulotomy than CA patients (hazard ratio (HR) = 1.337; 95% confidence interval (CI) 1.100–1.625;P=0.004). C-CV and S-CV patients both had larger hazard than CA patients in earlier capsulotomy (HR=1.304; 95%CI=1.007–1.688;P=0.044,HR=1.361; 95%  CI=1.084–1.709;P=0.008, resp.). PCO progresses more rapidly in patients undergoing combined or sequential cataract surgery and PPV than in patients undergoing CA.

VISUAL OUTCOMES OF SAME DAY VERSUS DELAYED PARS PLANA VITRECTOMY FOR DROPPED NUCLEUS DURING CATARACT EXTRACTION

2021 ◽  
pp. 9-11
Author(s):  
Haniyaa Mufti ◽  
Syed Tariq Qureshi ◽  
Tufela Shaf
Keyword(s):  
Cataract Surgery ◽  
Pars Plana Vitrectomy ◽  
Prospective Observational Study ◽  
Visual Outcome ◽  
Cataract Extraction ◽  
Time Duration ◽  
Ocular Coherence Tomography ◽  
Iop Measurement ◽  
Pars Plana

Purpose: To compare the visual outcome in patients of nucleus drop undergoing same day pars plana vitrectomy (PPV) versus delayed PPV. Methods: A prospective observational study was conducted on 50 eyes with posteriorly dislocated nucleus after cataract surgery who underwent PPV. Study variables included the time duration between nucleus drop and PPV, nal best-corrected visual acuity(BCVA), and complications after PPV. In 7(14%) eyes, PPV was performed on the same day of cataract surgery and in 43(86%) eyes, an elective PPV was performed after 1 week of cataract surgery. All our cases had intraocular lens(IOL) implanted at the end of PPV. Patients were followed up for 6 months with BCVA, intraocular pressure (IOP) measurement, indirect ophthalmoscopy and ocular coherence tomography(OCT).Results: Comparison was made between VA in patients who underwent PPV on same day (n=7) and those who underwent delayed PPV (n=43). In the same day group, 85.71% patients had BCVA ranged between 6/6 to 6/18, while only 14.29% had BCVA between 6/18 to 6/60 at the nal follow up. In the delayed PPV group , 60.47% had BCVA range between 6/6 to 6/18, 27.90% had BCVA ranged between 6/18 to 6/60 and only 11.63% patients had BCVA of <6/60- hand movements (HM) . Pvalue was 0.398 which was not statistically signicant.Conclusion: Majority of the patients obtain good VAafter PPVfor nucleus drop irrespective of the time. The visual outcome in both the groups was comparable, but slightly better results were obtained in the same day PPVgroup.

scholarly journals Visual outcome and complications of cataract extraction after pars plana vitrectomy

2018 ◽  
Vol Volume 12 ◽  
pp. 989-994 ◽  
Author(s):  
Amanda Rey ◽  
Ignasi Jürgens ◽  
Xavier Maseras ◽  
Agnieszka Dyrda ◽  
Patricia Pera ◽  
...  
Keyword(s):  
Pars Plana Vitrectomy ◽  
Visual Outcome ◽  
Cataract Extraction ◽  
Pars Plana

Prior pars plana vitrectomy and its association with adverse intraoperative events during cataract surgery

2021 ◽  
Author(s):  
Lucy I. Mudie ◽  
Jennifer L. Patnaik ◽  
Anne M. Lynch ◽  
Ronald E. Wise
Keyword(s):  
Cataract Surgery ◽  
Pars Plana Vitrectomy ◽  
Pars Plana

scholarly journals Femto Laser-Assisted Cataract Surgery

2020 ◽  
Author(s):  
Clemence Bonnet ◽  
Saba Al-Hashimi ◽  
Antoine P. Brézin ◽  
Dominique Monnet
Keyword(s):  
Femtosecond Laser ◽  
Cataract Surgery ◽  
New Technology ◽  
Intraoperative Complications ◽  
Surgical Techniques ◽  
Current Method ◽  
Cataract Extraction ◽  
Scientific Data ◽  
Conventional Surgery ◽  
Lens Fragmentation

Cataract is a leading cause of blindness in the world, and cataract extraction is one of the most commonly performed surgeries. Preferred surgical techniques have changed over the past decades with associated improvements in outcomes and safety. Phacoemulsification is a highly successful technique first introduced over 40 years ago. It is the current method of cataract surgery, with a very low reported rate of major complications and a frequency of overall intraoperative complications of less than 2%. Application of the femtosecond laser evolved to now assist in cataract surgery and has been termed FLACS (femtosecond laser-assisted cataract surgery) and occurs in three steps: corneal incisions (including optional limbal relaxing incisions to reduce astigmatism), anterior capsulotomy, and lens fragmentation. The remaining surgical steps still require the surgeon’s hands. The FLACS technique may have some advantages compared with conventional phacoemulsification. It remains however unclear whether FLACS is globally more efficient and safer than conventional surgery. The popularity of FLACS may also be limited by its higher cost compared with conventional surgery. The potential advantages of laser-assisted surgery are yet to be determined as FLACS technology is relatively new and in continuous evolution. This chapter reports scientific data as well as our own experience with this new technology. All the platforms currently available are described.

scholarly journals Pars Plana Vitrectomy and the Risk of Ocular Hypertension and Glaucoma: Where Are We?

2020 ◽  
Vol 9 (12) ◽  
pp. 3994
Author(s):  
Tommaso Rossi ◽  
Guido Ripandelli
Keyword(s):  
Anterior Chamber ◽  
Ocular Hypertension ◽  
Oxygen Tension ◽  
Pars Plana Vitrectomy ◽  
Open Angle Glaucoma ◽  
Crystalline Lens ◽  
Cataract Extraction ◽  
Oxygen Scavenger ◽  
Clinical Series ◽  
Pars Plana

Purpose is to review the pathogenic mechanism for ocular hypertension and glaucoma development after pars plana vitrectomy. Both acute and chronic causes are considered, and special attention is paid to the theories and clinical evidence on the risk of developing Open Angle Glaucoma (OAG) after Pars Plana Vitrectomy (PPV). Most existing scientific literature on the issue agree on the role of ascorbate as an oxygen scavenger within the vitreous chamber. Oxygen tension in the vitreous and anterior chamber is maximum inn proximity of the retinal surface and endothelium, respectively and steeply decreases toward the lens, on both sides, and trabecular meshwork. Vitreous removal and, to a lesser extent, liquefaction, greatly reduces oxygen tension gradient in vitreous chamber while cataract extraction has similar effects on anterior chamber oxygen gradients. Oxygen derivatives originated from the cornea and retina are actively reduced by the vitreous gel and/or the crystalline lens. Vitreous removal and cataract extraction reduce drastically this function. Most reported clinical series confirm this hypothesis although protocol difference and follow-up length greatly impact the reliability of results.

scholarly journals Evolution of cataract surgery: Smaller incision - less complications

2012 ◽  
Vol 69 (5) ◽  
pp. 385-388 ◽  
Author(s):  
Vladimir Draganic ◽  
Miroslav Vukosavljevic ◽  
Milorad Milivojevic ◽  
Mirko Resan ◽  
Nenad Petrovic
Keyword(s):  
Cataract Surgery ◽  
Surgical Techniques ◽  
Visual Outcome ◽  
Cataract Extraction ◽  
Extracapsular Cataract Extraction ◽  
Corneal Incision ◽  
Visual Rehabilitation ◽  
Operative Trauma ◽  
Iol Implantation

Background/Aim. Cataract surgery has become one of the safest procedures in medicine thanks to advances in technology and surgical techniques. Although minimal, we still witness different complications. The aim of this study was to compare visual outcome and complication rate in different techniques of cataract surgery, ie in cataract surgeries with various corneal incision width. Methods. The study included 3,457 consecutive patients, ie 4,670 eyes that had undergone cataract surgery. The used surgical techniques were: extracapsular cataract extraction, phacoemulsification/ forceps IOL implantation, phacoemulsification/ injector IOL implantation, microincision cataract surgery (MICS). Patient follow up was 6 months. Patients were evaluated for: visual aquity, corneal astigmatism, cellular reaction in the anterior chamber, IOL position. Results. Uncorrected visual aquity 30 days postoperatively was ? 0.5 in 30% of the eyes - ECCE; 54.7% of the eyes - phacoemulsification/forceps IOL implantation; 63.0% of the eyes - phacoemulsification/injector IOL implantation; 5/8 of the eyes - MICS. Endophthalmitis was detected in 0.15% of the eyes - ECCE and 0.1% of the eyes - phacoemulsification/forceps IOL implantation. In eyes with phacoemulsification/injector IOL implantation or microincision cataract surgery (MICS) there were no cases of endophthalmitis. After a 6-month period intraocular lens were dislocated in 7.2% of the eyes - ECCE, and 0.6% of the eyes - phacoemulsification/PMMA IOL. There was no IOL dislocation in other surgical techniques. Conclusion. Shorter corneal incision implies less complications, less operative trauma, faster visual rehabilitation and better visual outcome.

scholarly journals Cataract Surgery following Sequential Myopic and Hyperopic LASIK

2018 ◽  
Vol 9 (2) ◽  
pp. 264-268
Author(s):  
Tao Ming Thomas Chia ◽  
Hoon C. Jung
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Calculation Method ◽  
Cataract Extraction ◽  
Power Calculation ◽  
Iol Implantation ◽  
Patient Dissatisfaction ◽  
Iol Power Calculation ◽  
Iol Power

We report a case of patient dissatisfaction after sequential myopic and hyperopic LASIK in the same eye. We discuss the course of management for this patient involving eventual cataract extraction and intraocular lens (IOL) implantation with attention to the IOL power calculation method used.

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