Changes of anthropometric parameters of an eye during the implantation of toric intraocular lenses in children with congenital cataracts.

2021 ◽  
pp. 101-104
Author(s):  
A.I. Shilov ◽  
◽  
K.K. Shefer ◽  
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Intraocular Lenses ◽  
Pediatric Cataract ◽  
Congenital Cataracts ◽  
Positive Effects ◽  
Postoperative Astigmatism ◽  
Toric Iols ◽  
Significant Difference ◽  
Pediatric Cataract Surgery

Aim. The aim of the study is to examine changes in the anthropometric and refractive parameters of the eyeball in children with congenital cataracts who have been implanted with various types of IOLs (toric or classic monofocal). Materials and methods. In this work, we retrospectively studied the medical history of 34 children (42 eyes) aged 4 to 15 years, who underwent phacoemulsification of congenital cataracts with implantation of various types of IOLs: toric and simple monofocal. Further, in these groups, by statistical methods, the dynamics of refraction in the first three years after the operation, the incidence of postoperative astigmatism, and its dynamics were assessed. We also assessed the rate of change in the anteroposterior axis of the eyeball, the dynamics of refraction in terms of the total spheroequivalent and maximum visual acuity in 3 years after the operation. Results. According to the results of the study, it was shown that toric IOLs significantly better stimulate the process of emmetropization of the eyeball, and also have a significant tendency to completely eliminate postoperative astigmatism, within 3 years after surgery. However, there were no significant differences in maximally corrected visual acuity between the 2 compared groups. There were also no data showing a significant difference in the more frequent development of myopia in the group receiving the toric IOL. Conclusion. The correct choice and calculation of the IOL remains one of the most difficult tasks in pediatric cataract surgery. New technologies are introduced annually and require constant testing. In this study, we have shown the possibility of using toric IOLs and their positive effects in pediatric cataract surgery and in the prevention and treatment of obscuration amblyopia. Key words: pediatric cataract, intraocular lenses, myopia, refraction, phacoemulsification, amblyopia.

scholarly journals Refractive Outcome of Posterior Optic Capture versus Intrabagal Implantation of Intraocular Lenses in Pediatric Cataract Surgery

2020 ◽  
pp. 61-68
Author(s):  
Hend Mohammed Elshershaby ◽  
Waleed Abdelhady Allam ◽  
Ahmed Fekry Elmaria ◽  
Rabab Mohammed Elseht
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lenses ◽  
Refractive Outcome ◽  
Pediatric Cataract ◽  
Iol Implantation ◽  
Significant Difference ◽  
Group A ◽  
Pediatric Cataract Surgery ◽  
The Mean ◽  
Group B

Purpose: To compare refractive outcome of posterior Optic Capture versus In-the-bag Implantation of Intraocular Lenses in Pediatric Cataract Surgery. Design: Prospective, randomized and comparative study. Methods: Forty eyes of 25 children (12 males and 13 females) were included in this study with unilateral or bilateral cataracts in the pediatric age during the period between October 2018 to July 2019. These children were diagnosed to have congenital or developmental cataracts. All children underwent cataract surgery and IOL implantation. In our study, all children were divided into two groups: group (A) included 22 eyes that underwent posterior capsulorhexis and anterior vitrectomy with IOL implantation entirely in the capsular bag and group (B) included 18 eyes that underwent posterior capsulorhexis and posterior optic capture of the IOL. Patient demographics, surgical intervention, presenting symptoms, postoperative refraction and follow up of refractive changes for 6 months were recorded. Results: Ten cases were unilateral and fifteen cases were bilateral. The mean age was 5.44 ±3.30 in group (A) while the mean age was 4.26±1.45 in group (B). At 1.5 month, the mean spherical error in group (A) was 2.85 ± 1.41 D  with range from 1 to 6.5D, and the mean spherical error in group (B) was 2.50 ± 1.70 D with range from -0.75 to 3.75 D with no statistically significant difference in both groups. The mean cylindrical error in group (A) was -0.96 ± 1.87 D with range from -3.5 to 2.25D and the mean cylindrical error in group (B) was -1.38 ± 1.79 D with range from -3 to 2D with no statistically significant difference in both groups. At 6 months, the mean spherical error in group (A) was 0.73 ±1.89 D  with range from -4.00 to 3.75D and the mean spherical error in group (B) was 0.00 ± 2.27 D with range from -3.50 to 2.7D with no statistically significant difference in both groups. The mean cylindrical error in group (A) was -1.21± 0.90 D with range from -2.75 to 1.25D and the mean cylindrical error in group (B) was -1.68 ±0.93 D with range from -3.00 to -0.75D with no statistically significant difference in both groups. Conclusion: There was no statistically significant difference between in-the-bag intraocular lens implantation and intraocular lens posterior optic capture in the term of post-operative refraction.  Posterior optic capture helped in preventing posterior capsule opacification (PCO) postoperatively in all cases.

Pediatric Cataract Surgery: Comparison between Ages at Surgery and Contrast Sensitivity Outcomes

2019 ◽  
Vol 43 (1) ◽  
pp. 50
Author(s):  
Aquirina Caesari Putri ◽  
Rozalina Loebis
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Contrast Sensitivity ◽  
Cataract Extraction ◽  
Significant Negative Correlation ◽  
Natural World ◽  
P Value ◽  
Pediatric Cataract ◽  
Low Contrast ◽  
Significant Difference

Background: Pediatric cataracts are major causes of children’s blindness. Surgery has proven to be beneficial in terms of visual function prognosis. Contrast sensitivity evaluation after surgery is as important as visual acuity considering that natural world consists of various objects in low-to-medium contrasts. The purpose of this study is to analyze the difference of contrast sensitivity outcomes based on ages at surgery. Method: Retrospective data of children with pediatric developmental cataract from July 2013 to November 2015 were collected. All children who underwent cataract surgery at 60-months-old or less were randomized into two groups, ≤24 months and >24-to-60 months. Contrast sensitivity was then examined with preferential-looking method using Hiding Heidi low-contrast test face chart. The main outcome measures were contrast sensitivity of both groups. Age-at-evaluation, cataract onset, duration of follow-up, duration of deprivation and visual acuity were also noted. Result: Of 14 children (23 eyes), 11 eyes (47,8%) were in ≤24 months group, 12eyes (52,2%) were in >24-to-60 months group. All eyes underwent cataract extraction and similar type of intraocular lens implantation. Mean age-at-surgery was 28,2 months±16,8 (SD). Mean contrast sensitivity for each group was 47,50 %±42,29 and 18,33%±27,38, respectively, with p-value 0,031. Further analysis of Spearman’s correlation test demonstrated significant negative correlation (rs = -0,559; p = 0,006) between the two groups. Conclusion: There was statistically significant difference in contrast sensitivity between those who underwent surgery at ≤24 months and >24-to-60 months. Children who underwent surgery at older ages tend to have better contrast sensitivity afterwards.

scholarly journals Comparison of Visual Outcomes and Patient Satisfaction Between two Diffractive Trifocal Intraocular Lenses

2021 ◽  
Author(s):  
asli cetinkaya yaprak ◽  
Mustafa Unal
Keyword(s):  
Visual Acuity ◽  
Patient Satisfaction ◽  
Cataract Surgery ◽  
Intraocular Lenses ◽  
World Health ◽  
Uncorrected Distance Visual Acuity ◽  
Significant Difference ◽  
Prospective Comparative Study ◽  
Health Organization ◽  
Clinical Trials Registry

Abstract Purpose To evaluate the clinical outcomes and visual quality of patients undergoing cataract surgery with the implantation of two different models of diffractive trifocal intraocular lenses (IOLs).MethodsThis randomized prospective comparative study included 60 eyes of 15 patients who scheduled to undergo bilateral cataract surgery with the implantation of two models of diffractive trifocal IOLs (RayOne Trifocal and AcrySof IQ PanOptix IOL). Monocular and binocular corrected and uncorrected distance visual acuity (CDVA, UDVA), intermediate visual acuity (DCIVA, UIVA) at 60 and 80 cm, near visual acuity (DCNVA, UNVA), and patient satisfaction were compared over a three-month follow-up.ResultsEach group comprised 30 eyes of 15 patients. No statistically significant differences were determined between the groups in terms of CDVA, UDVA, DCNVA and UNVA. The monocular and binocular UIVA values at 60 cm were better in the PanOptix IOL group (p=0.04 and p=0.01, respectively), and the DCIVA and UIVA values at 80 cm were better in the RayOne IOL group (p=0.01, p=0.047, p<0.001, and p=0.042, respectively). No statistically significant difference was found between the groups in relation to the frequency and severity of visual symptoms evaluated. Regarding discomfort, the RayOne IOL group had more bothersome halos and starbursts (p=0.026 and p=0.01, respectively).ConclusionBoth IOLs provided very good restoration of visual acuity. However, with the AcrySof IQ PanOptix IOL, the likelihood of patients experiencing bothersome halos and starbursts was less. The RayOne Trifocal IOL might be a better choice for patients who require further intermediate vision.The study was registered under the World Health Organization international clinical trials registry platform: NCT04655274, 30/11/2020, prospectively registered.

scholarly journals Outcome of Pediatric Cataract Surgeries in a Tertiary Center in Switzerland

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Sarah Claudia Ambroz ◽  
Marc Töteberg-Harms ◽  
James V. M. Hanson ◽  
Jens Funk ◽  
Daniel Barthelmes ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Anterior Segment ◽  
Retrospective Chart Review ◽  
Visual Outcome ◽  
Posterior Capsular Opacification ◽  
Pediatric Cataract ◽  
Tertiary Center ◽  
Significant Difference ◽  
Aphakic Glaucoma ◽  
Pediatric Cataract Surgery

Purpose. To determine and to analyze the outcome of pediatric cataract surgery. Methods. A retrospective chart review of individuals aged up to 10 years who underwent cataract surgery between January 1, 2004, and December 31, 2014, at the UniversityHospital Zurich, Switzerland. Results. 63 children (94 affected eyes) with bilateral (68/94) or unilateral (26/94) cataract were identified. Surgery was performed at a median age of 1.5 months (IQR: 1.3–2.6 months) for the aphakic group (45/94) and of 50.7 months (IQR: 38.0–78.4 months) for the IOL group (49/94). At the last follow-up visit (median 31.1 months, IQR: 18.4–50.2 months), visual acuity was better in bilateral than in unilateral cataract cases. Posterior capsular opacification (PCO) was diagnosed in 30.9% of eyes without a significant difference in the IOL and aphakic groups (p=0.12). Aphakic glaucoma was diagnosed in 12/45 eyes at a median of 6.8 months (IQR 2.1–13.3 months) after surgery. Microcornea (5/12) and anterior segment anomalies (8/12) were associated with glaucoma development (p<0.05). Conclusion. Laterality and timing of surgery influence the outcome of pediatric cataract surgery. PCO was the most frequent postoperative complication. Aphakic glaucoma is often associated with ocular developmental abnormalities and a poor visual outcome.

Heparin-surface-modified intraocular lenses in pediatric cataract surgery: Prospective randomized study

1999 ◽  
Vol 25 (6) ◽  
pp. 782-787 ◽  
Author(s):  
Surendra Basti ◽  
Murali K. Aasuri ◽  
Madhukar K. Reddy ◽  
Padmaja Preetam ◽  
Sreelakshmi Reddy ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Randomized Study ◽  
Intraocular Lenses ◽  
Prospective Randomized Study ◽  
Pediatric Cataract ◽  
Pediatric Cataract Surgery ◽  
Surface Modified

Comparison of polymethylmethacrylate versus hydrophobic acrylic lenses for primary intraocular lens implantation in pediatric cataract surgery

2020 ◽  
Vol 1 (3) ◽  
pp. 160-165
Author(s):  
Gamze Uçan Gündüz ◽  
◽  
Berna Akova Budak ◽  
Keyword(s):  
Postoperative Complications ◽  
Cataract Surgery ◽  
Intraocular Lenses ◽  
Safe Procedure ◽  
Pediatric Cataract ◽  
Iol Implantation ◽  
Group I ◽  
Pediatric Cataract Surgery ◽  
Group Ii ◽  
Hydrophobic Acrylic

AIM: To compare the visual results and postoperative complications of polymethylmethacrylate (PMMA) and hydrophobic acrylic intraocular lenses (IOLs) in children who underwent cataract extraction with primary IOL implantation. METHODS: This retrospective study included 117 eyes of 63 children with bilateral pediatric cataract undergoing cataract surgery and primary IOL implantation. The patients were divided into two groups, Group I included 58 eyes of 30 patients with PMMA IOLs; Group II included 59 eyes of 33 patients with hydrophobic acrylic IOLs. The clinical features, refraction errors, best corrected visual acuity (BCVA) and surgical complications were compared between two groups. RESULTS: The mean age at the time of surgery was 5.8 (2-12)y and mean follow up period was 40.5 (6-196)mo. Postoperatively, BCVA was ≥0.5 in 80 eyes (68.4%) and this was comparable in two groups. Visual axis opacification was seen in 28 eyes (48.3%) in Group I and 16 eyes (27.1%) in Group II and this difference was statistically significant (P=0.018). Postoperative IOL dislocation and posterior synechia formation were also noted. When all postoperative complications were considered, there were significantly less complications in the acrylic IOL group than PMMA IOL group (P=0.020). CONCLUSION: Pediatric cataract surgery with primary IOL implantation is a safe procedure. Hydrophobic acrylic IOLs may lead to less postoperative complications compared to PMMA IOLs.

scholarly journals Should Posterior Vitrectomy be Made a Priority in Ophthalmic Facilities of Sub Sahara Africa?

2013 ◽  
Vol 7 (1) ◽  
pp. 1-3 ◽  
Author(s):  
Oluleye Tunji Sunday
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Vitreous Hemorrhage ◽  
Visual Outcome ◽  
Pediatric Cataract ◽  
College Hospital ◽  
Vitreous Opacities ◽  
Pediatric Cataract Surgery ◽  
A Priority ◽  
The University

Background: Posterior vitrectomy facilities are lacking in Sub Sahara Africa due to paucity of trained personnel in vitreo retinal subspecialty. More cases are seen needing vitrectomy, especially cases with vitreous opacities and complications of cataract surgery as more residents are being trained. The review will aim to determine whether vitrectomy facility should be a priority as part of ophthalmic facility in the region. Method: A 3 year review was carried out. All cases of posterior vitrectomy performed at the retinal unit of the University College Hospital, Ibadan, Africa between 2008 and 20011 were retrieved. Indications, and visual outcome were documented. Proportions and percentages were used to analyse the data. Results: Sixty six posterior vitrectomies were performed during the period. The most common indication for vitrectomy was vitreous hemorrhage n=30 [45.5%].Complication of cataract surgery such as dropped intraocular lens 7 [10.7%], sclera fixated intra ocular lens 6 [9.2%], and dropped nucleus 5 [7.5%] were emerging indications. Other indications noted include complicated retinal detachments 4 (6.1%), membranectomy for posterior capsule opacity from pediatric cataract surgery 3 (4.5%) and congenital lens subluxation 2 (3.0%). Improved visual outcome was noted after surgery. Forty nine [75%] eyes were blind [visual acuity of < 3/60] before vitrectomy. This proportion dropped to 24 [37%] after vitrectomy with an additional 24% regaining navigational vision [visual acuity of 3/60 to Counting fingers at 1meter] . Conclusion: Vitrectomy should be an integral part of eye care and its availability should be made a priority in ophthalmic facilities of Sub Sahara Africa, especially those involved in ophthalmology training.

scholarly journals Efficacy and safety of extended depth of focus intraocular lenses in cataract surgery: a systematic review and meta-analysis

2019 ◽  
Author(s):  
Jing Liu ◽  
Yi Dong ◽  
Yan Wang
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Contrast Sensitivity ◽  
Intraocular Lenses ◽  
Control Group ◽  
Efficacy And Safety ◽  
Depth Of Focus ◽  
Extended Depth Of Focus ◽  
Significant Difference ◽  
Near Visual Acuity

Abstract Background : This study aims to evaluate the efficacy and safety of extended depth of focus (EDOF) intraocular lenes (IOLs) in cataract surgery. Methods: All comparative clinical trials that involved bilaterally implanting EDOF IOLs in patients with cataract were retrieved from the literature database. We used random effects models to pool weighted mean differences (WMD) and risk ratio (RR) for continuous and dichotomous variables, respectively. Results: Nine studies with a total of 1336 eyes were identified. The subgroup analysis was conducted according to the type of IOLs used in the control group. Compared with monofocal IOLs, EDOF IOLs produced better uncorrected intermediate visual acuity (WMD: -0.17, 95% CI: -0.26 to -0.08, P = 0.0001) and uncorrected near visual acuity (WMD: -0.17, 95% CI: -0.21 to -0.12, P < 0.00001). EDOF IOLs resulted in reduced contrast sensitivity, more frequent halos, however, higher spectacle independence (RR: 2.81, 95% CI: 1.06 to 7.46, P = 0.04) than monofocal IOLs. Compared with trifocal IOLs, EDOF IOLs produced worse near visual acuity (MD: 0.10, 95% CI: 0.07 to 0.13, P<0.0001). EDOF IOLs performed better than trifocal IOls in contrast sensitivity, and there were no significant difference in halos and spectacle independence. Serious postoperative complications were rare, with no adverse events were reported in most studies. Conclusions: Increasing the risk of contrast reduction and more frequent halos, EDOF IOLs provided better intermediate and near VAs than monofocal IOLs. At the expense of near vision, patients receiving EDOF IOLs have better contrast sensitivity than those receiving trifocal IOLs. Halo incidence and spectacle independence of EDOF IOLs were similar to those of trifocal IOLs.

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