Posterior Chamber Implantable Collamer Lens Icl and Toric Icl

2009 ◽  
pp. 375-375 ◽  
Author(s):  
Alaa El-Danasoury
Keyword(s):  
Posterior Chamber ◽  
Implantable Collamer Lens ◽  
Chamber Implantable

Implanting a posterior chamber phakic intraocular lens in highly myopic eyes with peripheral primary iris and ciliary body cysts

2018 ◽  
Vol 29 (2) ◽  
pp. 171-177 ◽  
Author(s):  
Jing Zhao ◽  
Dongqiang Luo ◽  
Yong Sun ◽  
Lingling Niu ◽  
Feng Zhao ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Ciliary Body ◽  
Posterior Chamber ◽  
Safety Index ◽  
Implantable Collamer Lens ◽  
Distance Visual Acuity ◽  
Corrected Distance Visual Acuity ◽  
Efficacy Index ◽  
Chamber Implantable

Purpose: To investigate the safety and efficacy of implanting a posterior chamber implantable collamer lens with a central hole in cases of high myopia with peripheral primary iris or ciliary body cysts. Methods: A total of 37 eyes of 19 patients with primary iris or ciliary body cysts detected by ultrasonic biological microscope were included, with spherical powers of −10.26 ± 3.28 D and cylinder powers of −1.71 ± 1.18 D. Each patient received ultrasonic biological microscope and a routine examination before implantation of the implantable collamer lens. A routine postoperative follow-up was performed to observe changes in the iris or ciliary body cyst, ranging from 3 to 18 months. Results: There were no complications. At the last follow-up, 56.8% (21/37) of eyes achieved the same corrected distance visual acuity as their preoperative measurements, 43.2% of eyes were enhanced by ≥1 line, and no patients’ corrected distance visual acuity declined. The efficacy index and safety index were 0.95 and 1.11, respectively. After 18 months, 66.7% of the spherical equivalents were between ±0.5 D with 100% between ±1.0 D. The postoperative mean spherical equivalents at 1, 3, 6, 12, and 18 months were −0.45 ± 0.31 D, −0.39 ± 0.29 D, −0.36 ± 0.30 D, −0.39 ± 0.38 D, and −0.48 ± 0.23 D (p = 0.789). The vaults were 516 ± 140, 548 ± 124, 498 ± 133, 582 ± 161, and 557 ± 110 μm (p = 0.355). There were no changes in size (p > 0.05), number, or position of the iris or ciliary body cysts. Conclusion: Implantable collamer lens implantation is safe and effective for highly myopic patients with peripheral primary iris and ciliary body cysts. The cysts did not change after operation in this study.

scholarly journals Correction od Myopia and Myopic Astigmatism by Implantation of a Phakic Posterior Chamber Implantable Collamer Lens

2018 ◽  
Vol 75 (4/2018) ◽  
pp. 147-152
Author(s):  
Tereza Řeháková ◽  
Věra Veliká ◽  
Pavel Rozsíval ◽  
Naďa Jirásková
Keyword(s):  
Posterior Chamber ◽  
Implantable Collamer Lens ◽  
Myopic Astigmatism ◽  
Chamber Implantable

Corneal oedema with in situ implantable collamer lens: a challenging scenario for descemet membrane endothelial keratoplasty

2021 ◽  
Vol 14 (5) ◽  
pp. e240709
Author(s):  
Vineet Pramod Joshi ◽  
Pravin Krishna Vaddavalli
Keyword(s):  
Posterior Chamber ◽  
Endothelial Keratoplasty ◽  
Cataract Formation ◽  
Descemet Membrane Endothelial Keratoplasty ◽  
Phakic Intraocular Lens ◽  
Implantable Collamer Lens ◽  
Air Bubble ◽  
Descemet Membrane ◽  
Corneal Decompensation

A 27-year-old woman had foggy vision and photophobia since 10 months after implantation of implantable collamer lens (ICL STAAR Surgical AG, Nidau, Switzerland) with evidence of corneal decompensation and no cataract formation. Descemet membrane endothelial keratoplasty in phakic eyes is challenging, considering presence of posterior chamber phakic intraocular lens (IOL), decreasing the space available in anterior chamber to manoeuvre the graft. Need of inferior peripheral iridotomy in presence of central hole technology in ICL depends on the dynamics of full chamber air bubble. At 8 months, vision had improved to 20/20 and normal IOP with well-attached graft, stable phakic IOL and clear lens.

Implantable collamer lens for the correction of post-keratoplasty myopia and astigmatism

2020 ◽  
Vol 1 (2) ◽  
pp. 113-116
Author(s):  
Nasser A Alsabaani ◽  
◽  
Salem Almalki ◽  
Keyword(s):  
Visual Acuity ◽  
Contact Lenses ◽  
Posterior Chamber ◽  
Implantable Collamer Lens ◽  
Distance Visual Acuity ◽  
Refractive Outcomes ◽  
Uncorrected Distance Visual Acuity ◽  
Single Center Study ◽  
Corrected Distance Visual Acuity ◽  
Corneal Refractive Surgery

AIM: To evaluate the safety, refractive outcomes and vision after phakic posterior chamber implantable collamer lens (ICL) after keratoplasty (KP). METHODS: This retrospective single center study evaluated 32 (35 eyes) patients who received an ICL for myopia and/or astigmatism after keratoplasty. Patients underwent ICL surgery if they were unable to wear glasses or contact lenses and excimer laser surgery was contraindicated. Data were collected on uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), refraction and complications. Data were analyzed for the preoperative and last postoperative visits (16.7±13mo) (P<0.05). RESULTS: Preoperatively, spherical equivalent (SE) ranged from -4.00 to -20.00 D and cylinder from -2.00 to -9.00 D. The mean SE decreased statistically significantly from -11.41±3.62 D preoperatively to -1.95±1.78 D postoperatively (P<0.0001). Mean UDVA increased statistically significantly from 20/400 preoperatively to 20/25 postoperatively (P<0.0001). There was a mean improvement in postoperative CDVA of 1.5 lines compared to preoperatively, 37% of eyes had an increase of 2 or more lines. One eye (2.8%) lost ≥1 line of CDVA. There were no intraoperative or postoperative complications. CONCLUSION: Posterior chamber phakic intraocular lens implantation is a safe and effective treatment for post-keratoplasty myopia and astigmatism in patients unable to wear spectacles or contact lenses and where corneal refractive surgery is contraindicated.

​Short-term changes in and preoperative factors affecting vaulting after posterior chamber phakic Implantable Collamer Lens implantation

2020 ◽  
Author(s):  
Qiujian Zhu ◽  
Wen-Jing Chen ◽  
Wei-Jian Zhu ◽  
Hai-Xiang Xiao ◽  
Man-Hui Zhu ◽  
...  
Keyword(s):  
Multiple Regression ◽  
Corneal Thickness ◽  
Anterior Chamber Depth ◽  
Crystalline Lens ◽  
Stepwise Multiple Regression ◽  
Multiple Regression Equation ◽  
Posterior Chamber ◽  
Key Factors ◽  
Implantable Collamer Lens ◽  
Factors Affecting

Abstract Background: To describe the very early changes in vault in the first month after Implantable Collamer Lens (ICL) implantation and to evaluate the effect of preoperative biometric factors on vault.Methods: A total of 83 eyes from 83 subjects with complete data who met follow-up requirements were recruited in this retrospective study between May 2019 and March 2020. We quantitatively assessed postoperative vault at 2 hours, 1 day, 1 week, and 1 month following implantation. Associations between postoperative vault and age, ICL size, spherical equivalent (SE), axial length (AL), central corneal thickness (CCT), flat K, steep K, mean K, anterior chamber depth (ACD), crystalline lens thickness (LT), white-to-white (WTW) diameter obtained by three devices, horizontal and vertical sulcus-to-sulcus (STS) diameter, bright and dark pupil sizes (BPS and DPS) and DPS-BPS were investigated using Spearman’s correlation analysis and stepwise multiple regression analysis.Results: The mean vault values at 2 hours, 1 day, 1 week, and 1 month after ICL implantation were 672.05 ± 30.72, 389.15 ± 28.33, 517.23 ± 30.76 and 530.12 ± 30.22 μm, respectively. There were significant differences in vault values between 2 hours, 1 day and 1 week after the operation. ICL size (β = 0.942; p < 0.001), followed by horizontal STS (β = -0.517; p < 0.001), crystalline LT (β = -0.376; p < 0.001) and vertical STS (β = -0.257; p = 0.017), significantly influenced vault at 1 month after the operation. The multiple regression equation was expressed as follows: central vault (μm) = -1369.05+ 657.121 × ICL size- 287.408 × horizontal STS - 432.497 × crystalline LT - 137.33 × vertical STS (adjusted R2 = 0.643).Conclusions: After ICL implantation, vault decreased and then increased, but it did not return to the vault value at 2 hours after surgery. ICL size, horizontal and vertical STS and crystalline LT were key factors for predicting postoperative vaulting.

Combined Corneal Collagen Cross-Linking and Posterior Chamber Toric Implantable Collamer Lens Implantation for Keratoconus

2011 ◽  
Vol 42 ◽  
pp. e22-e25 ◽  
Author(s):  
George D Kymionis ◽  
Michael A Grentzelos ◽  
Alexandra E Karavitaki ◽  
Zotta Paraskevi ◽  
Sonia H Yoo ◽  
...  
Keyword(s):  
Cross Linking ◽  
Posterior Chamber ◽  
Implantable Collamer Lens ◽  
Lens Implantation ◽  
Collagen Cross Linking ◽  
Corneal Collagen
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