Visual and Refractive Outcomes of Toric Implantable Collamer Lens Implantation in Stable Keratoconus After Combined Topography-Guided PRK and CXL

2021 ◽  
Vol 37 (12) ◽  
pp. 824-829
Author(s):  
Hani F. Sakla ◽  
Wasim Altroudi ◽  
Yousef F.R. Sakla ◽  
Gonzalo Muñoz ◽  
Catia Pineza
Keyword(s):  
Implantable Collamer Lens ◽  
Refractive Outcomes ◽  
Lens Implantation

scholarly journals Clinical and Refractive Outcomes of Toric Phakic Implantable Collamer lens Implantat for correction of myopic astigmatism

2019 ◽  
Vol 13 (1) ◽  
pp. 70-75
Author(s):  
Suzan Amana
Keyword(s):  
Crystalline Lens ◽  
Posterior Chamber ◽  
Implantable Collamer Lens ◽  
Corneal Surgery ◽  
Refractive Outcomes ◽  
Lens Implantation ◽  
Positive Linear Correlation ◽  
The Mean ◽  
Myopic Astigmatism ◽  
High Myopic Astigmatism

Background: Currently there are four general approaches to correct refractive errors: refractive corneal surgery, crystalline lens surgery and implantation of an intraocular lens in anterior or posterior chamber. Objective: To evaluate the predictability, safety and stability of toric phakic implantable collamer lens implantation to correct moderate to high myopic astigmatism. in  Eye Specialty Private Hospital, Baghdad, Iraq. Type of the Study: a prospective non randomize intervention study. Methods: 60 eyes of 40 patients underwent implantation of a toric implantable collamer lens (V4c design).Mean spherical refraction was ₋11.32 diopter (D) ±3.17 (SD) with range from ₋6.00 to ₋18.00D and the mean cylinder was -2.61(D) ±1.16 with range from ₋1.00 to ₋5.50D .The outcome measures that evaluated during a 12 months follow-up period include UDVA, refractive outcomes, CDVA, vault and adverse events. Results: At 12 months postoperatively the mean Snellen decimal UDVA was 0.77±0.23 and mean CDVA was 0.80±0.21, with an efficacy index 1.16. Twenty nine  eyes (48.33%) showed gain in CDVA with safety index     1.21.The treatment was highly predictable for spherical equivalent and astigmatic component .The mean SE dropped from (₋12.63D ±3.11) to ( ₋0.11 D±0.20) with 58 eyes within ±0.50 D and 60 eyes with ± 1.00D of target correction . For achieved cylinder 60 eyes (100%) had ≤0.50D and 51 eyes (85%) had ≤0.25D with strong positive linear correlation between achieved and expected cylinder(r=0.94) Conclusions: The results of the present study support safety, efficacy, predictability of toric implantable collamer lens implantation to treat moderate to high myopic astigmatism.

scholarly journals Long-term refractive outcomes of posterior chamber phakic (spheric and toric implantable collamer lens) intraocular lens implantation

2013 ◽  
Vol 34 (3) ◽  
pp. 583-590 ◽  
Author(s):  
Arturo Gomez-Bastar ◽  
Martha Jaimes ◽  
Enrique O. Graue-Hernández ◽  
Tito Ramirez-Luquin ◽  
Arturo Ramirez-Miranda ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Posterior Chamber ◽  
Intraocular Lens Implantation ◽  
Implantable Collamer Lens ◽  
Refractive Outcomes ◽  
Lens Implantation

scholarly journals Implantable Collamer Lens Versus Iris-Fixed Phakic Intraocular Lens Implantation to Correct Myopia: A Meta-Analysis

PLoS ONE ◽  
2014 ◽  
Vol 9 (8) ◽  
pp. e104649 ◽  
Author(s):  
Guan-Lu Liang ◽  
Jing Wu ◽  
Jun-Ting Shi ◽  
Jian Liu ◽  
Feng-Ying He ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Meta Analysis ◽  
Intraocular Lens Implantation ◽  
Phakic Intraocular Lens ◽  
Implantable Collamer Lens ◽  
Lens Implantation

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.

Clinical Prediction of Excessive Vault After Implantable Collamer Lens Implantation Using Ciliary Body Morphology

2020 ◽  
Vol 36 (6) ◽  
pp. 380-387
Author(s):  
Qian Chen ◽  
Weina Tan ◽  
Xiaohua Lei ◽  
Chao Pan ◽  
Lina Jin ◽  
...  
Keyword(s):  
Ciliary Body ◽  
Clinical Prediction ◽  
Implantable Collamer Lens ◽  
Body Morphology ◽  
Lens Implantation

SMILE Versus Implantable Collamer Lens Implantation for High Myopia: A Matched Comparative Study

2020 ◽  
Vol 36 (3) ◽  
pp. 150-159 ◽  
Author(s):  
Jakob Siedlecki ◽  
Valerie Schmelter ◽  
Wolfgang J. Mayer ◽  
Benedikt Schworm ◽  
Siegfried G. Priglinger ◽  
...  
Keyword(s):  
Comparative Study ◽  
High Myopia ◽  
Implantable Collamer Lens ◽  
Lens Implantation

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

scholarly journals Posterior-Chamber Phakic Intraocular Lens Implantation in Patients over 40 Years of Age

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Pedro Tañá-Rivero ◽  
Francisco Pastor-Pascual ◽  
Marceliano Crespo ◽  
José L. Rodríguez-Prats ◽  
José J. Muñoz-Tomás ◽  
...  
Keyword(s):  
Crystalline Lens ◽  
Posterior Chamber ◽  
Spherical Equivalent ◽  
Efficacy And Safety ◽  
Phakic Intraocular Lens ◽  
Implantable Collamer Lens ◽  
Lens Implantation ◽  
Over 40 Years ◽  
Myopic Astigmatism

Purpose. To assess the efficacy, safety, and predictability of the Visian Implantable Collamer Lens (ICL) model having a central port in patients over 40 years of age. Methods. This study included 33 eyes from 21 patients who underwent V4c ICL implantation for the correction of myopia and myopic astigmatism. We assessed uncorrected (UDVA) and corrected (CDVA) distance visual acuity, refraction, intraocular pressure (IOP), endothelial cell density (ECD), vault, and adverse events occurring over a 1-year period. Results. Mean age of the patients at the time of implantation was 43.52 ± 4.49 years (range: 40 to 56 years). Efficacy and safety indexes were 1 and 1.09, respectively. Surgical outcomes for CDVA were as follows: no eye lost any lines, 19 eyes (57.58%) showed no CDVA changes, 7 eyes (21.21%) gained 1 line, 4 eyes (12.12%) gained 2 lines, and 3 eyes (9.09%) gained ≥3 lines. Mean postoperative spherical equivalent (SE) was −0.09 ± 0.47 D. A total of 29 eyes (87.8%) were within ±0.50 D and 31 eyes (93.9%) were within ±1.00 D of the desired SE. At 1-year, mean IOP was 15.27 ± 3.03 mmHg (range: 9 to 20 mmHg, p=0.12 pre vs. post) and mean ECD was 2516 ± 234 cells/mm2 (p=0.29 pre vs. post). Mean postoperative vault was 320 ± 136 μm, with 201–300 μm being the most prevalent vault range for 9 eyes (31.03%). None of the eyes showed a vault >701 μm. There were neither intraoperative nor postoperative complications; in fact, all ICL implantation procedures were uneventful. Conclusions. Our study’s findings support the use of this lens in patients over 40 years of age. A long follow-up period is advisable to monitor ICL position relative to the crystalline lens.

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