Speckle technologies and measurement of retinal visual acuity in cataract patients

2001 ◽  
Author(s):  
Garif G. Akchurin ◽  
Valery V. Bakutkin ◽  
Elena Y. Radchenko ◽  
Valery V. Tuchin ◽  
Alexander G. Akchurin
Keyword(s):  
Visual Acuity ◽  
Speckle Technologies ◽  
Cataract Patients

scholarly journals The Influence of Knowledge, Behaviour, Family Support and Paramedics’ Role Towards Visual Acuity in After-Surgery Cataract Patients in General Hospitals in Kediri

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Dyah Novi Wulansari ◽  
Byba Melda Suhita ◽  
Siti Farida
Keyword(s):  
Visual Acuity ◽  
Family Support ◽  
Influencing Factor ◽  
Simple Random Sampling ◽  
Developed Countries ◽  
P Value ◽  
Cross Sectional ◽  
General Hospitals ◽  
Surgery Patient ◽  
Cataract Patients

Cataract remains the major cause of blindness in the world, it also has important role in visual disturbance both in developed countries and developing countries. There are factors contributing in the improvement of visual acuity or the result of cataract surgery, some of which are after-surgery care, family’s ability to take care of the after-surgery patient, patient’s knowledge, patient’s behaviour, other underlying disease, and after-surgery complications. The purpose of this research was to seek the most influencing factor towards after-surgery visual acuity. This research was a quantitative research model with analytical observational method, using cross sectional approach. There were 63 respondents consist of cataract patients who has done surgery in general hospitals in Kediri, chose by simple random sampling method. Data analysing technique was done by double linier statistic test. The result of this research using double linier regression test with 63 respondents gave significant value of 0.000. This value was smaller than the p value (0.05 or 5%). This research analysis gave result in conclusion that there were significant effects of knowledge, respondents’ behaviour, family support, and paramedics’ role toward visual acuity in after-surgery cataract patients

scholarly journals Visual outcome and complications of manual small incision cataract Surgery (MSICS) in a peripheral CMH

2015 ◽  
Vol 10 (1) ◽  
pp. 14-18
Author(s):  
Md Abdullah Al Masum ◽  
Md Kamrul Hasan Khan ◽  
M Anwar Hossain
Keyword(s):  
Visual Acuity ◽  
Cataract Surgery ◽  
Visual Outcome ◽  
Cost Effective ◽  
Armed Forces ◽  
World Health ◽  
Military Hospital ◽  
Small Incision Cataract Surgery ◽  
Small Incision ◽  
Cataract Patients

Introduction: Manual small incision cataract surgery (MSICS) is a cost-effective alternative to phacoemulsification cataract surgery for developing countries. This prospective study was carried out in Combined Military Hospital (CMH), Chittagong from October 2009 to March 2011 on 75 cataract patients who were operated by MSICS technique. Objectives: Aim of this study was to assess the visual outcome and complications of MSICS in a peripheral CMH. Methods: Seventy five cataract patients were operated by MSICS technique. All surgical procedures were performed by the principal author. Major per-operative and postoperative complications were documented. Visual outcome was assessed by Snellen’s visual acuity test 06 weeks after operation. Results: Uncorrected visual acuity (UCVA) was 6/6 – 6/18 in 57 (76.0%) patients, < 6/18 – 6/60 in 15 (20%) and < 6/60 in 03 (4.0%) patients. Best corrected visual acuity (BCVA) was 6/6-6/18 in 65 (86.7%) patients, < 6/18-6/60 in 07 (9.3%) and < 6/60 in 03(4.0%) patients. Visual outcome was good in 86.7% of patients according to World Health Orgnization (WHO) criteria and was not far away from the WHO expected outcome. Posterior capsule rupture was the most significant per-operative complication which was found in 7(9.3%) cases and surgically induced astigmatism was main postoperative complication that affected visual outcome. Mean postoperative astigmatism (against-the rule) was - 1.25DC. 14 JAFMC Bangladesh. Vol 10, No 1 (June) 2014 Conclusion: MSICS is a safe and cost-effective technique of extra-capsular cataract extraction where surgical skill and experience of the surgeon plays a significant role in the result. DOI: http://dx.doi.org/10.3329/jafmc.v10i1.22895 Journal of Armed Forces Medical College Bangladesh Vol.10(1) 2014

The relationship between indoor and outdoor Snellen visual acuity in cataract patients

1988 ◽  
Vol 14 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Albert C. Neumann ◽  
George R. McCarty ◽  
Thomas O. Steedle ◽  
Donald R. Sanders ◽  
Marsha G. Raanan
Keyword(s):  
Visual Acuity ◽  
Snellen Visual Acuity ◽  
The Relationship ◽  
Cataract Patients ◽  
Indoor And Outdoor

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.

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

2019 ◽  
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 Purpose: 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) 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.

scholarly journals Effect of capsular tension ring implantation on capsular stability after phacoemulsification in patients with weak zonules: a randomized controlled trial. CTR implantation in cataract patients with weak zonules

2020 ◽  
Author(s):  
Shangfei Yang ◽  
Hui Jiang ◽  
Kailai Nie ◽  
Liwen Feng ◽  
Wei Fan
Keyword(s):  
Visual Acuity ◽  
Prediction Error ◽  
Controlled Trial ◽  
Clinical Trial Registry ◽  
Capsular Tension Ring ◽  
Distant Visual Acuity ◽  
Pars Plana ◽  
And Control ◽  
Cataract Patients

Abstract Background: The use of capsular tension ring (CTR) implantation to treat cataract patients with weak zonules is still controversial. The aim of this study was to examine the effects of CTR implantation on capsular stability after phacoemulsification in patients with weak zonules, especially patients who have undergone pars plana vitrectomy (PPV) or those who suffer from severe myopia.Methods: A total of 42 patients who underwent phacoemulsification and received an intraocular lens (IOL) were randomized to undergo CTR implantation or not. The control and CTR groups were compared in terms of uncorrected distant visual acuity (UDVA), best corrected distant visual acuity (BCDVA), refractive prediction error, the area of anterior capsulorhexis, and IOL inclination angle. Follow-up visits were conducted postoperatively at 1 day, 1 week, 1 month and 3 months. subgroup analyses were performed based on PPV and severe myopia. Results: Surgery significantly improved UDVA and BCDVA to similar extents in CTR and control patients, and refraction prediction error was similar between the two groups at all follow-up times. At 3 months after surgery, the area of anterior capsulorhexis was significantly larger in CTR patients than in controls (p = 0.0199). These differences were also significant between the subgroups of patients with severe myopia. Vertical IOL inclination was less within CTR groups at 3 months after surgery, especially in patients with severe myopia (p = 0.0286). At 1 week postoperatively, the proportion of individuals whose posterior lens capsule that had completely adhered to the posterior IOL surface was significantly higher among CTR patients (p = 0.023). No serious surgical complications were observed.Conclusion: CTR implantation can benefit cataract patients with weak zonules by maintaining the shape of the capsular bag, reducing capsule shrinkage and stabilizing IOL inclination.Trial registration: Chinese Clinical Trial Registry ChiCTR-INR-17011217, date of registration April 22, 2017, prospectively registered.

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

2019 ◽  
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 Purpose: 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) 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 cases achieved visual acuity were as good as or better than that preoperatively. The percentage of corneal opacity covering pupillary area had significant negative correlation with postoperative UCVA and BCVA (logMAR) (R=-0.88 P<0.00001 and R=-0.87 P<0.00001, respectively) Conclusion: Toric intraocular lens implantation can improve UCVA, BCVA, and refractive astigmatism in cataract patient with corneal opacity. The percentage of central corneal opacity covering pupillary area 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.

Comparative Analysis of a New Hybrid EDOF-Multifocal Diffractive Intraocular Lens with a Trifocal Diffractive Intraocular Lens

2021 ◽  
pp. 112067212110676
Author(s):  
Cem Ozturkmen ◽  
Cem Kesim ◽  
Pinar Gunel Karadeniz ◽  
Afsun Sahin
Keyword(s):  
Visual Acuity ◽  
Intraocular Lens ◽  
Visual Quality ◽  
Visual Performance ◽  
Significant Difference ◽  
Defocus Curve ◽  
Visual Quality Of Life ◽  
Cataract Patients ◽  
Diffractive Iol

Purpose To compare visual acuity, defocus curve and visual quality of life performances of a new hybrid refractive-diffractive intraocular lens (IOL) and a trifocal diffractive IOL. Methods Patients who underwent cataract surgery with bilateral implantation of ZFR00V or TFNT00 IOLs were enrolled in this study. The main outcomes were defined as uncorrected distant, intermediate and near visual acuities (UDVA, UIVA and UNVA, respectively), defocus curve and VF-14 questionnaire aimed for visual performance. Results Fifty patients, of whom 30 had bilateral ZFR00V implantation, were enrolled in the study. Patients with ZFR00V had significantly better UIVA than patients with TFNT00 (0.05 ± 0.03 vs. 0.07 ± 0.04 logMAR, P = 0.02). Defocus curve showed significantly higher visual acuity in intermediate range for ZFR00V IOL between −1.00 and −1.50 dioptres (all P < 0.05). All patients had good visual performance with mean VF-14 scores above 3 points with no significant difference between two IOL models. Spectacle independence was 100% for both distant and near vision in both group of patients. Conclusion Bilateral implantation of ZFR00V in cataract patients shows better intermediate visual acuity scores and similar daily visual performance when compared with trifocal TFNT00 IOL.

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