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Posterior optic buttonholing of intraocular lens implantation through posterior capsulorrhexis margin: A technique of intraocular lens implantation in cases of anterior capsulorrhexis extension in pediatric cataract surgery.

ABSTRACT: This study aimed to evaluate the intra- and postoperative complications of intraocular lens (IOL) implantation with posterior optic buttonholing (POBH) in children that had undergone phacoemulsification irrigation/aspiration for congenital/developmental cataract and experienced complication of anterior capsulorrhexis extension (ACE). A total of 25 eyes of 21 patients were included in the study. A foldable three-piece IOL was implanted into the bag/ciliary sulcus with primary posterior capsulorrhexis and POBH. The visual acuity improved from 2.12 ± 0.69 log MAR to 1.38 ± 0.49 log MAR at 6 months follow-up. Postoperative complications included heightened postoperative inflammation in three patients and temporary corneal edema in two patients. Only one patient had developed posterior capsular opacification (PCO) at 6 months follow-up with mild tilt, while the rest 24 eyes had no PCO formation and adequate IOL centration. The results of this study indicate that a three-piece foldable IOL implantation with POBH is a feasible option for children who experienced ACE during pediatric cataract surgery, as it results in satisfactory surgical outcomes and very few ocular complications.

SUBMITTER: Mohan A

PROVIDER: S-EPMC8012917 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Intraocular lens-sling technique: A safe approach for lens implantation in complicated cataract surgery and secondary intraocular lens implantation.

Project description:Among 20 million cataract surgeries being performed worldwide every year, approximately 5% are being complicated by posterior capsule rent or zonular dialysis. Intraocular lens (IOL) implantation in such cases with intraoperative complications is quite challenging. Our next course of action is to place the IOL in the ciliary sulcus, however, there is a risk of IOL drop into the vitreous in cases of inadequate support. We have described a novel idea of using a suture material through the dialling hole of a three-piece rigid IOL which can be used as a leash to reduce the risk of IOL drop during implantation in such cases. This technique could also be used during sutureless scleral fixated IOL and retro-pupillary iris claw lens implantation. We found that in 90 consecutive patients where this technique was used, there was no incidence of IOL drop or retinal detachment.

| S-EPMC7210857 | biostudies-literature

Prediction of anterior chamber volume after implantation of posterior chamber phakic intraocular lens.

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| S-EPMC7668562 | biostudies-literature

Extent of multifocality with corneal manipulation in manual small incision cataract surgery with monofocal posterior chamber intraocular lens implantation.

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| S-EPMC7933831 | biostudies-literature

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| S-EPMC7929652 | biostudies-literature

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| S-EPMC7993776 | biostudies-literature

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Project description:To evaluate the etiology and management of elevated intraocular pressure (IOP) following posterior chamber phakic implantable collamer lens (ICL) surgery.Between 2009 and 2015, 638 eyes of 359 subjects with refractive myopia, underwent V4b and V4c (CentraFLOW) model ICL implantation. Ocular hypertension (OHT) was defined as IOP of ? 22 mm Hg on two separate occasions and elevated IOP with corresponding optic disc or visual field damage was defined as glaucoma.Elevated IOP ? 22 mm Hg was noted in 33 eyes of 30 subjects (33/638; 5.17%). Median age of subjects with raised IOP was 26 years (Inter quartile range (IQR):22, 29) and median refarctive error was -16 diopters (-19.5, -13). The median follow up was 7.8 months (IQR:0.3, 17.6) and median time for postoperative IOP rise was 12 days, (IQR:2, 24). The various etiologies for elevated IOP were steroid response in 21 eyes (64%; 10 eyes with V4b, 11 eyes with V4c), retained viscoelastic in 5 eyes (15%) (3 with V4b, 2 with V4c), pupillary block in four eyes (12%; 3 with V4b, 1 with V4c), malignant glaucoma in one eye (3%, V4b), and missed pre-existing Juvenile open angle glaucoma (JOAG) in two eyes (6% with V4b). Elevated IOP in 31 eyes resolved with conservative management. One eye (centraFLOW design) with central aquaport block by viscoelastic, needed AC wash and one eye with malignant glaucoma needed parsplana vitrectomy and hyaloidotomy. Ten eyes required longterm (>2 months) antiglaucoma medications (AGM) for IOP control. Except the two eyes with JOAG, none had disc and field damage.In our series, OHT was seen in 4.85% and glaucoma in 0.3% eyes that underwent V4b and V4c model ICL implantation. Multiple etiologies were noted and steroid induced ocular hypertension was the most common cause of elevated IOP followed by retained viscoelastic and pupillary block. One third of these eyes required longterm AGM for IOP control.

| S-EPMC5113895 | biostudies-literature

Femtosecond laser-assisted cataract surgery in a patient with posterior chamber phakic intraocular lens.

Project description:We describe a case of modified femtosecond laser settings for cataract extraction in a patient with a posterior chamber phakic intraocular lens (PIOL), to avoid incomplete treatment patterns and treatment displacement. Modification of laser settings (increased depth for the capsulotomy, increased vertical spot spacing for the capsulotomy and increased anterior and posterior capsule safety margins for lens fragmentation) seems to make femtosecond laser-assisted cataract surgery feasible in patients with posterior chamber PIOLs, as complete treatment patterns are achieved.

| S-EPMC5757340 | biostudies-literature

Bilateral Implantation of a New Refractive Multi-Segmented Multifocal Intraocular Lens in Cataract or Refractive Lens Exchange Patients.

Project description:PurposeTo evaluate the safety and efficacy of a new multi-segmented refractive multifocal intraocular lens (IOL) after phacoemulsification and refractive lens exchange (RLE).Patients and methodsIn this prospective, multicenter clinical trial, 63 presbyopic subjects who had cataract or where RLE candidates were bilaterally implanted with the Precizon Presbyopia IOL (Ophtec BV, Groningen, the Netherlands) after phacoemulsification. The study was conducted at 6 clinical centers in Germany, the Netherlands, Belgium, Turkey and Spain. Subjects were evaluated at baseline and at 1 day, 1 week, 1 and 3 months postoperatively for monocular and binocular uncorrected (UDVA) and corrected distance visual acuity (CDVA), uncorrected (UIVA) and distance-corrected intermediate visual acuity (DCIVA), uncorrected (UNVA), corrected (CNVA) and distance-corrected near visual acuity (DCNVA), contrast sensitivity and quality of vision.ResultsThree months postoperatively, binocular UDVA and CDVA of ≥20/40 was achieved in 98.4% (60/61) and 100%, respectively. Binocular UIVA and DCIVA of ≥20/40 was achieved in 96.7% (59/61) and 93.4% (57/61) respectively. Binocular UNVA, CNVA and DCNVA of ≥20/40 was achieved in 93.4% (57/61), 98.4% (60/61) and 95% (57/60) subjects, respectively. Complete spectacle independence was achieved in 80% (49/61) patients; 93% of patients reported that they were quite or very satisfied with the outcomes of the procedure.ConclusionPrecizon Presbyopia IOL implantation is a safe and effective method to provide good visual acuity at all distances in presbyopic and cataract patients.

| S-EPMC8149325 | biostudies-literature

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