scholarly journals Relation Between Corneal Astigmatism and Uncorrected Visual Acuity in Eyes Implanted With Multifocal Intraocular Lens

2015 ◽  
Vol 44 (0) ◽  
pp. 111-120
Author(s):  
Eri Hiruta ◽  
Chikako Suto ◽  
Emiko Shimamura ◽  
Itsumi Watanabe ◽  
Chihiro Kobayashi
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Corneal Astigmatism ◽  
Multifocal Intraocular Lens ◽  
Uncorrected Visual Acuity

scholarly journals Refractive Lens Exchange with Multifocal Intraocular Lens for Treatment of Chronic Intermittent Spasm of the Near Reflex

2017 ◽  
Vol 8 (3) ◽  
pp. 539-544 ◽  
Author(s):  
Guy Sallet
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Spontaneous Recovery ◽  
Multifocal Intraocular Lens ◽  
Refractive Lens Exchange ◽  
Final Treatment ◽  
Uncorrected Visual Acuity ◽  
Refractive Lens ◽  
Near Visual Acuity ◽  
Near Reflex

We report the case of an emmetropic 32-year-old female with decreased uncorrected visual acuity and diplopia due to intermittent episodes of spasm of the near reflex. Neurologic, general, and ophthalmic examination could not find an organic cause. Attempts at spontaneous recovery, psychogenic therapy, and cycloplegic therapy were unsuccessful and the symptoms persisted for almost 5 years, leading to psychogenic distress. Final treatment with refractive lens exchange and implantation of a toric trifocal intraocular lens resolved the spasm of the near reflex, resulting in an uncorrected distance and near visual acuity of 20/20.

scholarly journals Correction of High Corneal Astigmatism during Cataract Surgery

2019 ◽  
Vol 15 (4) ◽  
pp. 405-410 ◽  
Author(s):  
K. B. Pershin ◽  
N. F. Pashinova ◽  
M. E. Konovalov ◽  
E. P. Gurmizov ◽  
O. Yu. Zubenko ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Surgical Treatment ◽  
Clinical Experience ◽  
Intraocular Lens ◽  
Surgical Intervention ◽  
Corneal Astigmatism ◽  
Intraocular Lenses ◽  
Toric Intraocular Lens ◽  
Surgical Interventions ◽  
Uncorrected Visual Acuity

Patients, who need cataract surgical treatment, often fail to achieve a high uncorrected visual acuity after surgery due to the concomitant astigmatism involved. Currently, surgeons are increasingly performing combined surgical interventions, including relaxing limbal keratotomic incisions (manual keratotomy) or femtoarcuatous keratotomy, as well as implanting toric intraocular lenses. In recent years, additional toric intraocular lenses have been available. Purpose: to analyze our own clinical experience of implanting an additional toric intraocular lens to correct corneal astigmatism in three clinical cases. The article presents our clinical experience of successful correction of residual corneal astigmatism after previous cataract phacoemulsification with the implantation of a monofocal toric intraocular lens in three patients patients aged 70, 61 and 54 years. In all cases, an additional toric intraocular lens Add-on Torica-sPB pre-filled in the cartridge with a good refractive effect was implanted. The uncorrected visual acuity was 1.0 in all the investigated cases at the follow-upo period of 6 months after the surgical intervention. Calculation of the toric intraocular lens optical power was performed using an online calculator. A feature of surgical intervention was the repositioning of the additional toric intraocular lens into the ciliary sulcus. Changes in the data of keratotopography before and after surgery were absent. In none of the investigated cases, intra- and postoperative complications and dislocation of the implanted additional toric intraocular lens were determined. Based on these cases, high predictability, efficacy and safety of implantation of an additional toric intraocular lens are shown, in the case of residual middle-grade corneal astigmatism after the initial cataract phacoemulsification with the toric intraocular lens implantation. This approach can be successfully used in patients during one-stage surgical treatment of cataract and associated high-grade corneal astigmatism, expanding existing protocols for the treatment of this group of patients.

scholarly journals Clinical differences between toric intraocular lens (IOL) and monofocal intraocular lens (IOL) implantation when myopia is determined as target refraction

2020 ◽  
Author(s):  
Da young Shin ◽  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Corneal Astigmatism ◽  
Spherical Equivalent ◽  
Toric Intraocular Lens ◽  
Toric Iol ◽  
Iol Implantation ◽  
Monofocal Iol ◽  
Target Refraction ◽  
Better Than

Abstract Background: To analyze and compare the clinical results of toric intraocular lens (IOL) and monofocal IOL implantation when the target refraction value is determined -3 diopter (D) in cataract patients with corneal astigmatism >1.5 diopters (D).Methods: We performed a retrospective chart review for patients with corneal astigmatism >1.5D who underwent cataract surgery and their target refraction is determined -3D. 100 eyes (100 patients; monofocal IOL, 60; toric IOL, 40) were enrolled in the current study. Near and distant uncorrected visual acuity (UCVA), corrected VA, spherical equivalent and refractive, corneal astigmatism were evaluated before and after surgery.Results: The near UCVA of the toric IOL group (0.26±0.33) after cataract surgery was significantly better than that of the monofocal IOL group (0.48±0.32) (p=0.030). The distant UCVA of the toric IOL group (0.38 ± 0.14) was also significantly better than that of the monofocal IOL group (0.55 ± 0.22) (p = 0.026). There were no significant intergroup differences in postoperative best-corrected visual acuity (p = 0.710) and mean spherical equivalent (p = 0.465). In the toric IOL group, postoperative refractive astigmatism was -0.80 ± 0.46D and postoperative corneal astigmatism was -1.50 ± 0.62D, whereas the corresponding values in the monofocal IOL group were -1.65 ± 0.77D and -1.45 ± 0.64D; residual refractive astigmatism was significantly lower with toric IOL implantation compared with monofocal IOL implantation (p = 0.001). Conclusions: When myopic refraction such as -3D was determined as the target power in patients with corneal astigmatism, toric IOL implantation led to excellent improvement in both near and distant UCVA.

scholarly journals Evaluation of Sutureless, Glueless, Flapless, Intrascleral Fixated Posterior Chamber Intraocular Lens in Children with Ectopia Lentis

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Kannan NB ◽  
Piyush Kohli ◽  
Bhanu Pratap Singh Pangtey ◽  
Kim Ramasamy
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Pediatric Population ◽  
Intraoperative Complications ◽  
Vitreous Hemorrhage ◽  
Posterior Chamber ◽  
Ectopia Lentis ◽  
Uncorrected Visual Acuity ◽  
Posterior Chamber Intraocular Lens

Aim. This paper aims at evaluating refractive outcome and complication profile of sutureless, glueless, flapless, intrascleral fixation of intraocular lens (SFIOL) in pediatric population. Methods. This retrospective study included patients ≤18 years of age who underwent SFIOL for ectopia lentis. Details obtained included preoperative uncorrected visual acuity (UCVA), cycloplegic refraction, and best-corrected visual acuity (BCVA); intraoperative complications; and postoperative UCVA, cycloplegic refraction, and BCVA and complications. Results. Median pre- and postoperative UCVA was logMAR 1.78 (Snellen 20/1200) and logMAR 0.30 (Snellen 20/40), respectively, (p<0.001). Median pre- and postoperative BCVA was logMAR 0.24 (Snellen 20/34) and logMAR 0.18 (Snellen 20/30), respectively. UCVA ≥20/60 was attained in 90% of eyes. BCVA ≥20/30 was attained in 85.0% of eyes. Most common early postoperative complications were hyphaema (10%), transient vitreous hemorrhage (2.5%), and ocular hypotony (2.5%). None of these developed any long-term sequelae. Only one case of subluxation of IOL was seen. No case of late endophthalmitis or retinal detachment was seen. Conclusion. Since refractive error induced is minimal, the procedure is suitable for IOL implantation in children, who are noncompliant with spectacles. The complication profile is similar to that reported in adults.

Pseudoaccommodation and Visual Acuity With Technovision PresbyLASIK and a Theoretical Simulated Array® Multifocal Intraocular Lens

2008 ◽  
Vol 24 (4) ◽  
pp. 344-349 ◽  
Author(s):  
Carlos Illueca ◽  
Jorge L. Alió ◽  
David Mas ◽  
Dolores Ortiz ◽  
Jorge Pérez ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Multifocal Intraocular Lens

Bioptics for high hyperopia with combined multifocal intraocular lens implantation and excimer ablation in young patients

2018 ◽  
Vol 29 (4) ◽  
pp. 426-430 ◽  
Author(s):  
Omer Trivizki ◽  
David Smadja ◽  
Michael Mimouni ◽  
Samuel Levinger ◽  
Eliya Levinger
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Laser In Situ Keratomileusis ◽  
Intraocular Lens Implantation ◽  
Multifocal Intraocular Lens ◽  
Distance Visual Acuity ◽  
Lens Implantation ◽  
Near Visual Acuity ◽  
High Hyperopia

Purpose:To analyze the visual and refractive outcome of the bioptics procedure combining multifocal intraocular lens implantation and excimer laser surgery in young patients with high hyperopic eyes not suitable for a single surgical procedure.Methods:This retrospective case series included 10 eyes of five patients (age range 18–30 years) with high hyperopia (spherical equivalent +8.51 ± 0.85 diopters (D)). They had been treated with serial multifocal intraocular lens implantation followed 6 weeks later by laser in situ keratomileusis for residual hyperopia. Uncorrected distance visual acuity, uncorrected near visual acuity, corrected distance visual acuity, corrected near visual acuity, and manifest refraction were evaluated before surgeries, after multifocal intraocular lens implantation, and 3 months post laser in situ keratomileusis.Results:No patients were lost to follow-up (6 months). The mean spherical equivalent decreased to +2.05 ± 1.33 D after multifocal intraocular lens implantation and to −0.10 ± 0.58 D after the laser in situ keratomileusis procedure. Success of the procedures was determined by uncorrected visual acuity. LogMAR uncorrected distance visual acuity improved by a total of more than six lines from 1.05 ± 0.18 LogMAR to 0.46 ± 0.12 LogMAR post multifocal intraocular lens implantation and to 0.15 ± 0.06 LogMAR after both surgeries. The LogMAR uncorrected near visual acuity increased by 0.81 ± 0.82 LogMAR after lens implantation due to loss of accommodation, and all eyes reached a LogMAR of 0 at 1 month postoperatively following laser in situ keratomileusis.Conclusions:A bioptics approach involving multifocal intraocular lens followed 6 weeks later by a laser in situ keratomileusis procedure for the correction of very high hyperopia enabled the resolution of the residual refractive error in young very high hyperopic patients.

scholarly journals Toric Intraocular Lens Implantation in Cataract Patients with Corneal Opacity

2020 ◽  
Author(s):  
Ho Ra ◽  
Ho Sik Hwang ◽  
Hyun Seung Kim ◽  
Man Soo Kim ◽  
Eun Chul Kim
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Corneal Opacity ◽  
Corneal Astigmatism ◽  
Intraocular Lens Implantation ◽  
Toric Intraocular Lens ◽  
Cataract Patient ◽  
Lens Implantation ◽  
Cataract Patients ◽  
Total Corneal Astigmatism

Abstract Background: To evaluate the effect of toric intraocular lens implantation in cataract patient with corneal opacity and high astigmatism. Methods: 31 eyes of 31 patients who underwent cataract surgery with toric intraocular lens implantation were included. All patients had corneal opacity with astigmatism. Preoperative total corneal astigmatism was determined considering posterior astigmatism using a rotating Scheimpflug camera (Pentacam®: Oculus, Wetzlar, Germany). At 2 months after toric intraocular lens implantation, we evaluated residual astigmatism, uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA).Results: Postoperative UCVA and BCVA (0.30 ± 0.17, 0.22 ± 0.16LogMAR) were statistically improved compared to preoperative UCVA and BCVA (1.2 ± 0.34, 1.1 ± 0.30LogMAR, respectively) (P<0.01). Postoperative residual refractive astigmatism (1.2 ± 0.35D) was statistically reduced compared to preoperative refractive astigmatism (2.4 ± 0.65D) (P<0.05). Preoperative and postoperative total corneal astigmatism values were not statistically different. All eyes achieved postoperative visual acuity as good as or better than preoperative one. The size of corneal opacity covering pupil had significant negative correlation with postoperative UCVA and BCVA (logMAR) (R=0.91 P<0.05 and R=0.92 P<0.05, respectively)Conclusion: Toric intraocular lens implantation can improve UCVA, BCVA, and refractive astigmatism in cataract patient with corneal opacity. The size of corneal opacity covering pupil is the major prognostic factor for postoperative visual improvement. Therefore, toric intraocular lens implantation should be considered for cataract patients who have corneal opacity with high astigmatism.

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