Vitreoretinal Surgery in the Treatment of Dislocations of Intraocular Lens and Nucleus-Lens Particules into the Vitreous Cavity

2021 ◽  
pp. 2-6
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Relative Frequency ◽  
Surgical Techniques ◽  
Vitreoretinal Surgery ◽  
Vitreous Cavity ◽  
Intraocular Lenses

Drops of lens nucleus/cortex particles into the vitreous cavity or dislocations of intraocular lenses (IOLs) are one of the serious complications of cataract surgery with an increasing relative frequency with the increase in the number of cataract surgeries. In addition, spontaneous and traumatic dislocations are other common case groups that should be treated. In this article, the vitreous dislocations of nucleus/cortex residues or IOL dislocations are discussed with different vitreoretinal surgical techniques.

scholarly journals Comparison of Patient's Satisfaction Level after Different Types of Posterior Chamber Intraocular Lens Implantation

ISRN Surgery ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-4
Author(s):  
Muhammad Waseem ◽  
Sadia Humayun ◽  
Omer Farooq ◽  
Quratulain Humayun ◽  
Sana Sadiq Sheikh
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Night Vision ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Satisfaction Level ◽  
Intraocular Lens Implantation ◽  
Patient’S Satisfaction ◽  
Posterior Chamber Intraocular Lens ◽  
Lens Implantation

Objective. To compare patient’s satisfaction level in performing routine activities during daylight and night vision after implantation with rigid, foldable, or rollable posterior chamber intraocular lens implants in uneventful cataract surgery. Design. Retrospective, cross-sectional. Place and Duration of Study. PNS SHIFA Hospital, Karachi, from Nov. 2009 to Nov. 2010. Methodology. 91 cataract surgery patients who had uneventful phacoemulsification, within the bag placement of intraocular lens and achieved best corrected visual acuity 6/9 or better were included in the study. Patients who developed postoperative complications were excluded. A specially designed questionnaire was used to assess patient’s satisfaction level of vision for those who underwent cataract surgery at least 3 months ago. Finally, they were categorized into five groups ranging from “very good” to “very poor.” SPSS version 16 was used to analyze the results. Results. There was a difference in satisfaction level between three groups. Vision was good in the day and the night with foldable posterior chamber intraocular lens implants. Conclusion. It was concluded that visual satisfaction level of patients who had foldable posterior chamber intraocular lens implantation was better during the day and night as compared to patients who had rigid or rollable posterior chamber intraocular lenses implantation.

scholarly journals Scleral-Fixated Intraocular Lenses

2017 ◽  
Vol 1 (2) ◽  
pp. 144-152 ◽  
Author(s):  
Maxwell S. Stem ◽  
Bozho Todorich ◽  
Maria A. Woodward ◽  
Jason Hsu ◽  
Jeremy D. Wolfe
Keyword(s):  
Cataract Surgery ◽  
Anterior Chamber ◽  
Ocular Trauma ◽  
Surgical Techniques ◽  
Intraocular Lenses ◽  
Alternative Placement ◽  
Complicated Cataract ◽  
Surgical Options ◽  
Capsular Support ◽  
Capsular Bag

Intraocular lenses (IOLs) can have inadequate support for placement in the capsular bag as a result of ocular trauma, metabolic or inherited conditions such as Marfan syndrome or pseudoexfoliation, or complicated cataract surgery. Surgical options for patients with inadequate capsular support include alternative placement of the IOL in the anterior chamber, fixation to the iris, or fixation to the sclera. The surgical techniques for each of these approaches have improved considerably over the last several decades resulting in improved visual and ocular outcomes. If no capsular or iris support exists, the surgeon can fixate an IOL to the sclera or the patient can remain aphakic. IOLs can be fixated to the sclera using sutures or by tunneling the IOL haptics into the sclera without sutures. This review summarizes the preoperative considerations, surgical techniques, outcomes, and unique complications associated with implantation of scleral-fixated IOLs.

scholarly journals Vitreoretinal Surgery for Intraocular Lens Dislocated into the Vitreous Cavity

2015 ◽  
Vol 45 (2) ◽  
pp. 56-59 ◽  
Author(s):  
Dilek Özçelik Soba ◽  
Mehmet Çıtırık ◽  
Elif Demircan ◽  
Pelin Yılmazbaş
Keyword(s):  
Intraocular Lens ◽  
Vitreoretinal Surgery ◽  
Vitreous Cavity

scholarly journals The Effects of Different Shapes of Capsulorrhexis on Postoperative Refractive Outcomes and Effective Position of the Intraocular Lens in Cataract Surgery

2018 ◽  
Author(s):  
Shixu Li ◽  
Yiping Hu ◽  
Ran Guo ◽  
Yushuang Shao ◽  
Jiangyue Zhao ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Anterior Segment ◽  
The Other ◽  
Intraocular Lenses ◽  
Vertical Diameter ◽  
Refractive Outcomes ◽  
Age Related ◽  
Horizontal Diameter ◽  
Different Shapes

Abstract Background：To evaluate the effects of anterior capsular opening size on deviation from predicted refraction and the effective position of intraocular lens (ELP) in cataract surgery. Methods：Eighty patients (80 eyes) with simple age-related cataracts were treated from May 2018 to September 2018 at the Fourth Affiliated Hospital of China Medical University. The patients were divided into 2 groups : 40 eyes were implanted with the C-loop haptic intraocular lens (AMO Tecnis ZCB00) while the other 40 eyes were implanted with the plate haptic intraocular lens (CT ASPHINA 509M). Follow-up visits were conducted postoperatively at 1 week, 1 month, and 3 months during which patients underwent refraction and data collection after pupil dilation that included anterior segment photography and Scheimpflug imaging by Pentacam. The area, horizontal and vertical diameter of the capsulorrhexis, circularity, decentration, and package were analysed using the image analysis software Image-Pro-Plus 6.0 that evaluated the relationship between the different shapes of capsulorrhexis with deviation from predicted refraction and ELP in cataract surgery. Results: Deviation from predicted refraction and all of the parameters of capsulorrhexis were not correlative in the 509M IOL group, however, in the Tecnis IOL group, while the deviation from predicted refraction and all of the capsulorrhexis parameters were not correlative at 1 week, the deviation from predicted refraction did correlate with capsulorrhexis area,horizontal diameter at 1 month (P=0.029, P=0.048), and the capsulorrhexis area ,vertical diameter at 3 months (P=0.03, P=0.017).The ELP correlated with package in both groups postoperatively (r>0, P<0.05), but there is no other capsulorrhexis parameters correlate with ELP in the 509M IOL group (all P>0.05). For the Tecnis IOL group, the ELP and capsulorrhexis area were correlated at 1 week and 1 month, while the ELP and horizontal diameter, the ELP and vertical diameter were correlated at 1 week , but did not correlate with the other capsulorrhexis parameters in the Tecnis IOL group (all P>0.05). Conclusions: The shape of the capsulorrhexis has an effect on postoperative refractive outcomes and the effective position of intraocular lens in cataract surgery, and plate haptic intraocular lenses have better refractive stability than C-loop haptic intraocular lenses.（ChiCTR-TRC-1800015638）

scholarly journals Multifocal Toric Intraocular Lenses

2017 ◽  
Vol 11 (01) ◽  
pp. 23
Author(s):  
Tiago Bravo Ferreira ◽  
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Intraocular Lenses ◽  
Multifocal Intraocular Lens ◽  
Iol Implantation ◽  
Medical Optics ◽  
Toric Iols ◽  
Recent Developments ◽  
Correction Of Astigmatism

Meticulous correction of astigmatism during cataract surgery is mandatory in cases of multifocal intraocular lens (IOL) implantation. Toric multifocal IOLs allow predictable astigmatic correction during cataract surgery. In this editorial, we review our investigation on the Tecnis ZMT IOL (Abbott Medical Optics, CA, US) as well as other recent developments in multifocal toric IOLs.

Lens and Intraocular Lens-Induced Uveitis; Clinic, Diagnosis, and Treatment

2020 ◽  
pp. 263-266
Keyword(s):  
Intraocular Lens ◽  
Surgical Techniques ◽  
Intraocular Lenses ◽  
Diagnosis And Treatment ◽  
Definitive Treatment ◽  
Surgical Trauma ◽  
Rare Form ◽  
Autoimmune Phenomenon ◽  
Eye Examination ◽  
Treatment Surgery

Lens-induced uveitis is a rare form of uveitis. It is an autoimmune phenomenon secondary to lens proteins that go out of the lens capsule due to exogenous or iatrogenic (surgical) trauma. The classic history and eye examination findings are typical for diagnosis. For the treatment, surgery is usually chosen in the forefront. Intraocular lens-induced uveitis is a rare form of uveitis that can be seen as a result of micro-and macro trauma of intraocular lens implants to intraocular tissues (iris, ciliary body, iridocorneal angle, etc.). Although this entity can be regressed by medical treatment, the definitive treatment is the removal or repositioning of the intraocular lens according to the etiological event. With the development of minimal traumatic surgical techniques and the use of new intraocular lens implants, its frequency decreases. The aim of this review is to summarize the general features, diagnosis, and treatment of uveitis due to lenses and intraocular lenses.

Trans-iris fixation of dislocated in-the-bag intraocular lenses

2019 ◽  
Vol 30 (3) ◽  
pp. 538-542
Author(s):  
Amir Faramarzi ◽  
Sepehr Feizi ◽  
Shahin Yazdani
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Intraocular Lenses ◽  
Posterior Chamber ◽  
Lens Dislocation ◽  
Capsular Tension Ring ◽  
Intraocular Lens Dislocation ◽  
Late Dislocation ◽  
Iris Fixation ◽  
Capsular Bag

Purpose: The aim of this article is to describe the safety and efficacy of trans-iris suture fixation for the management of late dislocation of in-the-capsular-bag intraocular lenses following uncomplicated cataract surgery. Patients and methods: Eleven eyes of 11 patients with late in-the-capsular-bag intraocular lens dislocation following uneventful phacoemulsification cataract surgery were recruited in the study. The dislocated intraocular lens–capsular bag complex was sutured to the iris at two points 180° apart using 9-0 polypropylene sutures on long needles. Results: Mean patient age was 67 ± 6 years. Seven eyes had pseudoexfoliation syndrome, one eye had Marfan syndrome, and another eye had a traumatic cataract; no risk factor was identified for intraocular lens dislocation in two eyes. A capsular tension ring had been implanted during cataract surgery in four eyes. In six eyes, the posterior chamber intraocular lenses were one-piece foldable while the remaining were three-piece intraocular lenses. Compared to the preoperative value, corrected distance visual acuity was significantly improved postoperatively ( p < 0.005). Intraoperative hyphema occurred in two eyes. Pupil ovalization was observed in all eyes. Mean endothelial cell count decreased by 4 ± 1.7% after intraocular lens fixation. The capsular bag–intraocular lens complex was stable and well-centered in the pupillary area in all eyes at the final follow-up examination which was performed 16 ± 4 months postoperatively. Conclusion: Trans-iris fixation is a simple and effective procedure for management of late intraocular lenses–capsular bag complex dislocation, without major complications.

Methods of correction of aphakia in silicone tamponade of the vitreous cavity

2021 ◽  
pp. 68-72
Author(s):  
G.O. Karpov ◽  
◽  
R.R. Fayzrakhmanov ◽  
O.A. Pavlovsky ◽  
A.V. Sukhanova ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Comparative Analysis ◽  
Anterior Chamber ◽  
Intraocular Lens ◽  
Silicone Oil ◽  
Vitreous Cavity ◽  
Intraocular Lenses ◽  
Silicon Oil ◽  
Group 2 ◽  
Iol Fixation

The purpose of this study is to conduct a comparative analysis of the correction of aphakia by various models of intraocular lenses using silicon oil tamponade (SO) of the vitreous cavity. Materials and methods. The studies were conducted on 16 eyes of patients aged from 56 to 75 years (65.5±12 years) with aphakia and pathology of the vitreal cavity. The duration of the silicone tamponade was 2-3 months. Depending on the use of the type of IOL, all patients were divided into 2 groups. Results. When using an anterior chamber intraocular lens (IOL), the presence of ophthalmic hypertension was revealed in 75% of cases, which is 2.02 times higher than when using transcleral IOL fixation. In 37.5% of cases, the SO output to the anterior chamber is determined, in contrast to the group where IOL hemming was used. A higher percentage of SO migration to the anterior chamber of the eye in group 2 patients is due to a violation of the anatomy of the anterior chamber barrier and the vitreal cavity. Conclusion. Thus, in patients who underwent transcleral IOL fixation, visual acuity is 2.1 times higher than in patients who were implanted with an anterior chamber IOL. Transcleral fixation of the IOL can form the necessary barrier between the anterior and posterior chambers of the eye, and is also the closest IOL position to the physiological one. Key words: intraocular lens, silicone oil, transcleral fixation.

scholarly journals Combined Femtosecond Laser-Assisted Cataract Surgery and 27-Gauge Transconjunctival Sutureless Vitrectomy

2020 ◽  
Vol 2020 ◽  
pp. 1-6
Author(s):  
Sami Yılmaz ◽  
Remzi Avcı ◽  
Ayşegül Mavi Yıldız
Keyword(s):  
Femtosecond Laser ◽  
Cataract Surgery ◽  
Refractive Error ◽  
Vitreoretinal Surgery ◽  
Future Trend ◽  
Intraocular Lenses ◽  
Combined Surgery ◽  
Retrospective Clinical Study ◽  
The Mean

Purpose. To report the outcomes of combined surgery using femtosecond laser-assisted cataract surgery (FLACS) and sutureless 27-gauge pars plana vitrectomy with intravitreal tamponade. Methods. This retrospective clinical study involved 23 eyes of 23 patients on whom combined vitreoretinal surgery was performed. Patients were initially given the femtosecond laser treatment that was performed after selection of capsulotomy and lens fragmentation patterns. The capsulotomy diameter was chosen as 4.9 mm in all patients. After the femtosecond laser, the sutureless phacovitrectomy procedure was performed. At the end of surgery, perfluoropropane or sterile air tamponade was applied. Results. The mean age of patients was 66.43 ± 7.61 (range, 54–83) years. Fifteen patients were females (65.2%). The mean follow-up was 16.09 ± 4.71 (range, 9–25) months. The most common surgical indication was epiretinal membrane (65.3%). The mean preoperative best-corrected visual acuity (BCVA) was 0.71 ± 0.44 (range, 1.7–0.3) logMAR, and the mean postoperative BCVA at 6 months was 0.16 ± 0.14 (range, 0.4–0) logMAR p<0.001. The mean target sphere refractive error was −0.24 ± 0.16 (range, −0.50–0.11) D, and the mean postoperative spherical equivalent refractive error was −0.14 ± 0.39 (range, −1.00–0.50) D at 6 months p=0.196. All intraocular lenses (IOLs) remained well centered in the capsular bag during surgery and follow-up. There was no iris capture, posterior synechiae, capsular opacification, or pseudophakic cystoid macular edema. The only complication related to femtosecond laser was two cases of subconjunctival haemorrhage related with suction. Conclusions. FLACS is a safe and effective technique providing the advantage of repeatable, precise capsulorhexis shape and size to achieve a well-centered and stable IOL postoperatively. These advantages can certainly improve the results of vitrectomy, especially in gas-filled eyes. FLACS and 27-gauge sutureless combined surgery may be a future trend in appropriate cases.

scholarly journals The Effects of Different Shapes of Capsulorrhexis on Postoperative Refractive Outcomes and Effective Position of the Intraocular Lens in Cataract Surgery

2019 ◽  
Author(s):  
li shixu ◽  
Yiping Hu ◽  
Ran Guo ◽  
Yushuang Shao ◽  
Jiangyue Zhao ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Anterior Segment ◽  
The Other ◽  
Intraocular Lenses ◽  
Vertical Diameter ◽  
Refractive Outcomes ◽  
Age Related ◽  
Horizontal Diameter ◽  
Different Shapes

Abstract Background：To evaluate the effects of anterior capsular opening size on deviation from predicted refraction and the effective position of the intraocular lens (ELP) in cataract surgery. Methods：Nonrandomized clinical trial.Eighty patients with simple age-related cataracts were treated from May 2018 to September 2018 at the Fourth Affiliated Hospital of China Medical University.All patients undergoing phacoemulsification received intraocular lens based on the voluntary principle.Forty eyes were implanted with the C-loop haptic intraocular lens (AMO Tecnis ZCB00) while the other forty eyes were implanted with the plate haptic intraocular lens (CT ASPHINA 509M). Follow-up visits were conducted postoperatively at 1 week, 1 month, and 3 months during which patients underwent refraction and data collection after pupil dilation,which included anterior segment photography and Scheimpflug imaging by Pentacam. The area, horizontal and vertical diameter of the capsulorrhexis, circularity, decentration, and package were analysed using the image analysis software Image-Pro-Plus 6.0 ,then evaluated the relationship between the different shapes of capsulorrhexis with deviation from predicted refraction and ELP in cataract surgery. Results: Deviation from predicted refraction and all of the parameters of capsulorrhexis were not correlative in the 509M IOL group, however, in the Tecnis IOL group, while the deviation from predicted refraction and all of the capsulorrhexis parameters were not correlative at 1 week, the deviation from predicted refraction did correlate with capsulorrhexis area,horizontal diameter at 1 month (P=0.029, P=0.048), and with capsulorrhexis area ,vertical diameter at 3 months (P=0.03, P=0.017).The ELP correlated with package in both groups postoperatively (r>0, P<0.05), but there is no other capsulorrhexis parameters correlated with ELP in the 509M IOL group (all P>0.05). For the Tecnis IOL group, the ELP and capsulorrhexis area were correlated at 1 week and 1 month, while the ELP and horizontal diameter, the ELP and vertical diameter were correlated at 1 week,but did not correlate with the other capsulorrhexis parameters in the Tecnis IOL group (all P>0.05). Conclusions: The shape of the capsulorrhexis has an effect on postoperative refractive outcomes and the effective position of the intraocular lens in cataract surgery, and plate haptic intraocular lenses have better refractive stability than C-loop haptic intraocular lenses.

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