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

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.

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Safety and Efficacy of a New Posterior Chamber Phakic Intraocular Lens in Cases of High Myopia: Early Results

Clinical Ophthalmology ◽

10.2147/opth.s270690 ◽

2020 ◽

Vol Volume 14 ◽

pp. 3681-3689

Author(s):

Praveen Subudhi ◽

Sweta Patro ◽

Prateek Agarwal ◽

Zahiruddin Khan ◽

B Nageswar Rao Subudhi ◽

...

Keyword(s):

Intraocular Lens ◽

High Myopia ◽

Posterior Chamber ◽

Phakic Intraocular Lens ◽

Safety And Efficacy ◽

Early Results

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Postsurgical Cystoid Macular Edema following Posterior Chamber Toric Phakic Intraocular Lens Implantation Surgery: A Case Report

Case Reports in Ophthalmology ◽

10.1159/000437013 ◽

2015 ◽

Vol 6 (2) ◽

pp. 223-227 ◽

Cited By ~ 1

Author(s):

Julide Canan Umurhan Akkan ◽

Kemal Tuncer ◽

Ahmet Elbay

Keyword(s):

Visual Acuity ◽

Case Report ◽

Macular Edema ◽

Intraocular Lens ◽

Cystoid Macular Edema ◽

Posterior Chamber ◽

Phakic Intraocular Lens ◽

Distance Visual Acuity ◽

Initial Surgery ◽

The Right

Purpose: To describe a case of cystoid macular edema (CME) developing after posterior chamber toric phakic intraocular lens (PIOL) implantation. Methods: Case report. Results: A 33-year-old male underwent implantation of toric implantable collamer lenses (ICL), a new generation of PIOLs, for both eyes. Preoperative best spectacle-corrected distance visual acuity (BCVA) was 20/25 in the right eye and 20/32 in the left eye, with a manifest refraction of -9.25 -4.0 × 4° and -9.75 -4.25 × 171°, respectively. On day 1 postoperatively, the left eye had an uncorrected distance visual acuity (UDVA) of 20/60 with a refraction of +2.0 -3.5 × 11°. Despite the rotation of the PIOL, the cylindrical refractive component persisted in the left eye with a refraction of +2.0 -3.5 × 11°. Two weeks after the initial surgery, he presented with a decrease in his visual acuity in the left eye. The UDVA and BCVA were both 20/100 in the left eye with a refraction of +2.0 -4.25 × 3°. Dilated fundus examination and macular optical coherence tomography revealed a CME in the left eye. Following topical nepafenac therapy and explantation of the ICL, we observed a complete resolution of the CME at 3 months with an improvement in BCVA to 20/32 in the left eye. Conclusions: To our knowledge, this is the first reported case of postsurgical CME following toric ICL implantation. In cases of phakic eyes with an intact posterior capsule, postsurgical CME can develop, thus highlighting the purpose of this report.

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Etiology and outcomes of current posterior chamber phakic intraocular lens extraction

Scientific Reports ◽

10.1038/s41598-020-78661-z ◽

2020 ◽

Vol 10 (1) ◽

Author(s):

Hideki Hayakawa ◽

Kazutaka Kamiya ◽

Wakako Ando ◽

Masahide Takahashi ◽

Nobuyuki Shoji

Keyword(s):

Visual Acuity ◽

Patient Satisfaction ◽

Intraocular Lens ◽

Posterior Chamber ◽

Phakic Intraocular Lens ◽

Distance Visual Acuity ◽

Lens Extraction ◽

Refractive Outcomes ◽

Uncorrected Distance Visual Acuity ◽

Surgical Extraction

AbstractThis study was aimed to review the etiology and the outcomes of current posterior chamber phakic intraocular lens (Visian ICL, STAAR Surgical) extraction. This review comprised 770 eyes of 403 consecutive patients undergoing ICL extraction. We evaluated prevalence, etiology, uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), predictability, and patient satisfaction. ICL extraction was required in 8 of 770 (1.0%) eyes. The most common reason was the progression of the pre-existing cataract formation in 5 eyes (63%), followed by residual refractive errors in 3 eyes (38%). Of the 7 eyes targeted for emmetropia, 7 (100%) and 6 (86%) achieved UDVAs of 20/40 and 20/20 or better, respectively. Three eyes (38%) showed no change in CDVA, 3 eyes (38%) gained 1 line, 2 eyes (25%) gained 3 or more lines. 88% and 100% were within ± 0.5 and 1.0 diopter (D), respectively, of the targeted correction. Patient satisfaction improved significantly, from 3.0 ± 1.4 preoperatively, to 8.0 ± 2.4 postoperatively. No vision-threatening complications occurred. ICL extraction was required in approximately 1% of ICL-implanted eyes. Visual and refractive outcomes were good, and patient satisfaction was overall high, even in ICL-extracted eyes.

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Development and treatment of cataract in myopic eye with phakic intraocular lens Fyodorov in the posterior chamber

Acta chirurgica iugoslavica ◽

10.2298/aci1104097j ◽

2011 ◽

Vol 58 (4) ◽

pp. 97-101

Author(s):

Milos Jovanovic ◽

Anica Bobic-Radovanovic ◽

Selimir Glisic ◽

Zora Stankovic

Keyword(s):

Visual Acuity ◽

Intraocular Lens ◽

High Myopia ◽

Surgical Intervention ◽

Posterior Chamber ◽

Phakic Intraocular Lens ◽

Corneal Incision ◽

Clear Corneal Incision ◽

Anterior Subcapsular Cataract ◽

Capsular Bag

This is a case report of a female patient who, due to high myopia, had silicone phakic intraocular lens type Fyodorov with plate-haptics implanted in the posterior chamber (PC pIOLs). The anterior subcapsular cataract (ASC) resulted in significant reduction of visual acuity and, therefore, the patient, after 16 years of the first surgery, underwent another surgical intervention. She had the pIOLs explantation, phacoemulsification and implantation of the flexible intraocular lens (IL) in the capsular bag. Explantation of the pIOLs, cataract surgery by phacoemulsification and IOL implantation were carried out through the same clear corneal incision and the intraoperative course was uneventful. The visual acuity of the operated eye was equal to pre-cataract period.

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