scholarly journals Rotational Stability of a New Posterior Chamber Toric Phakic Intraocular Lens

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Dilek Yaşa ◽  
Bülent Köse ◽  
Alper Ağca
Keyword(s):  
Intraocular Lens ◽  
Case Series ◽  
Mean Value ◽  
Rotational Stability ◽  
Posterior Chamber ◽  
Phakic Intraocular Lens ◽  
Axis Orientation ◽  
Good Visual Acuity ◽  
Manifest Refraction ◽  
Safety Indices

Purpose. To evaluate the refractive results and rotational stability of Eyecryl toric phakic intraocular lens (pIOL). Methods. In this retrospective single-surgeon case series, manifest refraction, visual acuities, endothelial cell density (ECD), and pIOL rotation were evaluated over 6 months. Results. 43 eyes from 23 patients were included. At 6 months, the SE was within ±0.50  D of emmetropia in 30 (70%) eyes and within ±1.00  D of emmetropia in 39 (91%) eyes. The efficacy and safety indices were 1.25 ± 0.38 and 1.41 ± 0.34, respectively. Mean ECD was 2719 ± 296 cells/mm2 at the preoperative visit and 2779.42 ± 422 cells/mm2 at the 6-month visit (p>0.05). The mean value of absolute axis orientation error was 4.95 ± 5.28°. Mean absolute change in axis orientation between visits was less than 3° for all visit intervals. Ninety percent or more of lenses were found to rotate 5° or less between all visit intervals. None of the patients experienced a vision-threatening complication, and no patient required secondary IOL repositioning. Conclusion. The pIOL appears to effectively reduce subjective manifest astigmatism and provide good visual acuity. Its position was found to be stable throughout the follow-up.

scholarly journals Early Results with a New Posterior Chamber Phakic Intraocular Lens in Patients with High Myopia

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Dilek Yaşa ◽  
Ufuk Ürdem ◽  
Alper Ağca ◽  
Yusuf Yildirim ◽  
Burçin Kepez Yildiz ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Endothelial Cell ◽  
Intraocular Lens ◽  
High Myopia ◽  
Posterior Chamber ◽  
Phakic Intraocular Lens ◽  
Phakic Iol ◽  
Distance Visual Acuity ◽  
Early Results ◽  
Manifest Refraction

Purpose. To report clinical results of a foldable, hydrophilic acrylic, single-piece, injectable, posterior chamber phakic intraocular lens (pIOL).Material and Methods. Medical records of patients who underwent posterior chamber phakic IOL (Eyecryl Phakic IOL, Biotech Vision Care, Ahmedabad, India) implantation for surgical correction of myopia were retrospectively reviewed. Only patients with at least a one-year follow-up were included. Manifest refraction, uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), endothelial cell density (ECD), and pIOL vault were analyzed at 1, 3, 6, and 12 months after surgery. Complications observed during and after surgery were also recorded.Results. The study included 58 eyes of 29 patients. Mean patient age was 32 ± 7 years. Spherical equivalent of manifest refraction was −13.41 ± 3.23 D preoperatively and −0.44 ± 0.55 D postoperatively. Preoperative CDVA was 0.29 ± 0.71 logMAR. Postoperative UDVA and CDVA were 0.21 ± 0.66 and 0.15 ± 0.69 logMAR, respectively, at the 12-month visit. At the 12-month visit, the efficacy index was 1.20 and the safety index was 1.39. Mean ECD was 2713 ± 339 cells/mm2at the preoperative visit and 2608 ± 362 cells/mm2at the 12-month visit (3.9% loss,p<0.001). ECD loss from 3 months to 12 months was not statistically significant. No significant cataract formation, significant endothelial cell loss, glaucoma, uveitis, or any other vision-threatening complication was observed.Conclusion. Based on postoperative experience, we have found that Eyecryl Phakic IOL is safe and effective for treating high myopia.

scholarly journals Visual and Refractive Outcomes of a Toric Presbyopia-Correcting Intraocular Lens

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Alice T. Epitropoulos
Keyword(s):  
Intraocular Lens ◽  
Standard Of Care ◽  
Cataract Extraction ◽  
Rotational Stability ◽  
Axis Orientation ◽  
Refractive Outcomes ◽  
Manifest Refraction ◽  
Uncorrected Visual Acuity ◽  
Clinical Practice Setting ◽  
Wavefront Aberrometry

Purpose. To evaluate outcomes in astigmatic patients implanted with the Trulign (Bausch + Lomb) toric presbyopia-correcting intraocular lens (IOL) during cataract surgery in a clinical practice setting.Methods. Retrospective study in 40 eyes (31 patients) that underwent cataract extraction and IOL implantation in a procedure using intraoperative wavefront aberrometry guidance (ORA system). Endpoints included uncorrected visual acuity (VA), reduction in refractive cylinder, accuracy to target, axis orientation, and safety.Results. At postoperative month 1, refractive cylinder was ≤0.50 D in 97.5% of eyes (≤1.00 D in 100%), uncorrected distance VA was 20/25 or better in 95%, uncorrected intermediate VA was 20/25 or better in 95%, and uncorrected near VA was 20/40 (J3 equivalent) or better in 92.5%. Manifest refraction spherical equivalent was within 1.00 D of target in 95% of eyes and within 0.50 D in 82.5%. Lens rotation was <5° and best-corrected VA was 20/25 or better in all eyes.Conclusion.The IOL effectively reduced refractive cylinder and provided excellent uncorrected distance and intermediate vision and functional near vision. Refractive predictability and rotational stability were exceptional. Implantation of this toric presbyopia-correcting IOL using ORA intraoperative aberrometry provides excellent refractive and visual outcomes in a standard of care setting.

Iris-fixated phakic intraocular lens explantation

2020 ◽  
pp. 112067212093498
Author(s):  
Emma S Duignan ◽  
Clare Quigley ◽  
Maxwell P Treacy ◽  
Azher Eldouri ◽  
Michael O’Keefe
Keyword(s):  
Endothelial Cell ◽  
Intraocular Lens ◽  
Case Series ◽  
Cell Loss ◽  
Posterior Chamber ◽  
Endothelial Cell Loss ◽  
Phakic Intraocular Lens ◽  
Retrospective Case ◽  
Visual Outcomes ◽  
Refractive Outcomes

Background/aims: To evaluate the visual outcomes and indication for surgery in a series of patients who underwent explantation of a phakic intraocular lens (PIOL). Methods: A retrospective case series of patients who underwent PIOL explantation in our institution was performed. The indication for explantation and visual and refractive outcomes were examined. The method of explantation is described. Results: Twenty-two eyes of 16 patients underwent PIOL explantation with a mean time to explantation of 7 ± 3 years (range 3–11.4). The mean age at explantation was 50.3 ± 9.3 years. Sixteen Artisan PIOLs and six Artiflex PIOLs were explanted. The indications for explanation were cataract development (17/22), endothelial cell loss (4/22) and synechiae formation (1/22). All patients with cataract underwent a combined procedure with explantation and phacoemulsification and the placement of a posterior chamber IOL. Mean corrected vision after explantation was 0.22 ± 0.10 logMAR (range 0.1–0.3 logMAR). One patient with endothelial cell loss required a Descemet’s Stripping Endothelial Keratoplasty (DSEK). Conclusion: Removal of PIOLs was necessitated most frequently by cataract followed by endothelial cell loss. Both explantation alone and explantation with concurrent phacoemulsification are safe procedures with good visual outcomes and will become more frequent in the future as more patients with PIOLs reach cataractous age.

Posterior chamber phakic intraocular lens implantation: comparative, multicentre study in 351 eyes with low-to-moderate or high myopia

2017 ◽  
Vol 102 (2) ◽  
pp. 177-181 ◽  
Author(s):  
Kazutaka Kamiya ◽  
Kimiya Shimizu ◽  
Akihito Igarashi ◽  
Yoshihiro Kitazawa ◽  
Takashi Kojima ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Intraocular Lens ◽  
High Myopia ◽  
Case Series ◽  
Posterior Chamber ◽  
Intraocular Lens Implantation ◽  
Phakic Intraocular Lens ◽  
Lens Implantation ◽  
Group 2 ◽  
Group 1

AimTo compare the clinical outcomes of posterior chamber phakic intraocular lens implantation with a central hole (Hole Implantable Collamer Lens (ICL), STAAR Surgical) for low-to-moderate myopia and for high myopia.MethodsThis multicentre retrospective case series comprised 351 eyes of 351 consecutive patients undergoing ICL implantation. Eyes were divided into groups based on preoperative degree of myopia: group 1; 57 eyes, manifest spherical equivalent less than −6 dioptres (D), and group 2; 294 eyes, −6 D or more. Safety, efficacy, predictability, stability and adverse events were compared preoperatively; and at 1 day, 1 week and 1, 3, 6 and 12 months postoperatively,ResultsUncorrected and corrected visual acuities were −0.17±0.14 and −0.21±0.10 logMAR in group 1, and −0.16±0.09 and −0.21±0.08 logMAR in group 2, 1 year postoperatively. In groups 1 and 2, 98% and 99% of eyes were within 1.0 D of the targeted correction. Manifest refraction changes of −0.12±0.34 D (group 1) and −0.18±0.43 D (group 2) occurred from 1 day to 1 year. ICL exchanges were necessary in two eyes (0.7%) in group 2. No vision-threatening complications occurred at any time.ConclusionsThe ICL performed well for the correction of both low-to-moderate myopia and high myopia throughout the 1-year observation period. The clinical outcomes of ICL implantation for low-to-moderate myopia are essentially equivalent to those for high myopia.

scholarly journals Two-year results after combined phacoemulsification and iris-fixated phakic intraocular lens removal

2021 ◽  
Author(s):  
Zoraida Solaiga Gaurisankar ◽  
Gwyneth A. van Rijn ◽  
Yanny Y. Y. Cheng ◽  
Gregorius P. M. Luyten ◽  
Jan-Willem M. Beenakker
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Posterior Chamber ◽  
Safe Procedure ◽  
Phakic Intraocular Lens ◽  
Conventional Procedure ◽  
Manifest Refraction ◽  
Corrected Distance Visual Acuity ◽  
Incision Technique

Abstract Purpose To describe and present results after a technique for cataract surgery combined with explantation of an iris-fixated phakic intraocular lens (IF-pIOL). Methods The medical records of all patients, who had undergone cataract surgery combined with IF-pIOL explantation and subsequent implantation of a posterior chamber IOL by the Single Incision Technique (SIT), were reviewed. Data collection included preoperative and postoperative corrected distance visual acuity (CDVA), manifest refraction, and endothelial cell density (ECD) up to a follow-up time of 24 months. Results Fifty myopic eyes (34 patients) and 9 hyperopic eyes (6 patients) had undergone a SIT procedure mainly because of cataract (67%). Postoperative CDVA improved in both the myopic eyes to 0.16 ± 0.37 logMAR, as in the hyperopic eyes to − 0.10 ± 0.55 logMAR with no eyes having loss of Snellen lines. Mean postoperative spherical equivalent was − 0.34 ± 0.72 D and − 0.10 ± 0.55 D, respectively. ECD loss 6 months after surgery was 5% and remained stable thereafter. Conclusion SIT for combined phacoemulsification and IF-pIOL removal yields good visual and refractive results and is a safe procedure in regard to ECD loss. The technique has advantages over the conventional procedure and is easy to perform.

Posterior chamber phakic intraocular lens to correct myopia: Long-term follow-up

2013 ◽  
Vol 39 (7) ◽  
pp. 1023-1028 ◽  
Author(s):  
Necip Torun ◽  
Eckart Bertelmann ◽  
Matthias K.J. Klamann ◽  
Anna-Karina Maier ◽  
Anja Liekfeld ◽  
...  
Keyword(s):  
Intraocular Lens ◽  
Posterior Chamber ◽  
Phakic Intraocular Lens ◽  
Long Term Follow Up

Posterior Chamber Phakic Intraocular Lens for Hyperopia of +4 to +11 Diopters

1998 ◽  
Vol 14 (3) ◽  
pp. 306-311 ◽  
Author(s):  
Jonathan M Davidorf ◽  
Roberto Zaldivar ◽  
Susana Oscherow
Keyword(s):  
Intraocular Lens ◽  
Posterior Chamber ◽  
Phakic Intraocular Lens

Posterior Chamber Phakic Intraocular Lens for Myopia of -8 to -19 Diopters

1998 ◽  
Vol 14 (3) ◽  
pp. 294-305 ◽  
Author(s):  
Roberto Zaldivar ◽  
Jonathan M Davidorf ◽  
Susana Oscherow
Keyword(s):  
Intraocular Lens ◽  
Posterior Chamber ◽  
Phakic Intraocular Lens
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