scholarly journals Barriers to Cataract Surgery Utilization Among Cataract Patients Attending Surgical Outreach Sites in Ethiopia: A Dual Center Study

2021 ◽  
Vol Volume 13 ◽  
pp. 263-269
Author(s):  
Zewdu Yenegeta Bizuneh ◽  
Girum W Gessesse ◽  
Dereje Hayilu Anbesse
Keyword(s):  
Cataract Surgery ◽  
Cataract Patients ◽  
Center Study

scholarly journals Analysis of corneal astigmatism and aberration in chinese congenital cataract and developmental cataract patients before cataract surgery

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xiaoyan Han ◽  
Qi Fan ◽  
Zhixiang Hua ◽  
Xiaodi Qiu ◽  
Dongjin Qian ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Congenital Cataract ◽  
Anterior Chamber Depth ◽  
Corneal Astigmatism ◽  
Imaging Device ◽  
Mean Values ◽  
Biometric Parameters ◽  
Developmental Cataract ◽  
Positive Linear Correlation ◽  
Cataract Patients

Abstract Background To investigate the distribution of corneal astigmatism, aberration, and biometric parameters in Chinese congenital cataract (CC) /developmental cataract patients before cataract surgery. Methods We evaluated eyes of CC /developmental cataract patients scheduled for cataract surgery from January 2016 to September 2019. Astigmatism, aberrations, and biometric parameters were measured with the Pentacam Scheimpflug imaging device (Pentacam HR, Oculus). Cataract was diagnosed and classified by slit-lamp examination after full mydriasis. Results We evaluated 538 eyes in 356 patients. The mean values of anterior corneal astigmatism (ACA), posterior corneal astigmatism (PCA), and total corneal astigmatism (TCA) were determined as 1.98 ± 1.06 D (range 0.0‒4.8 D), 0.49 ± 0.26 D (range 0.0‒1.9 D), and 2.09 ± 1.19 D (range 0.2‒8.8 D), respectively. ACA and TCA ≥ 1.25 D was present in 379 eyes (70.3%) and 392 eyes (72.8%), respectively. PCA between 0.25 D and 0.75 D was found in 380 eyes (70.6%). There was a statistically significant positive linear correlation between lower-order aberrations root mean square values (LOA RMS) and corneal astigmatism (CA). Furthermore, in terms of distribution of central cornea thickness, anterior chamber depth, ACA, PCA, and TCA in different types of cataracts, ACA was highest in patients with zonular cataracts. Finally, we found anterior corneal measurements may overestimate WTR astigmatism, underestimate ATR astigmatism, and underestimate oblique astigmatism, respectively. Conclusions Most CC /developmental cataract patients had moderate to high astigmatism and ACA accounted for the largest proportion in the zonular group. This can provide a basis for planning of CC/developmental cataract surgery by ophthalmologists in clinical practice.

scholarly journals Evaluation of Anterior Chamber Depth in 28,709 Adult Cataract Patients in China using Swept-Source Optical Biometry

2021 ◽  
Author(s):  
Qiong Lei ◽  
Haixia Tu ◽  
Xi Feng ◽  
Yong Wang
Keyword(s):  
Cataract Surgery ◽  
Anterior Chamber ◽  
Axial Length ◽  
Corneal Thickness ◽  
Anterior Chamber Depth ◽  
Multivariate Regression Analysis ◽  
Swept Source ◽  
Mean Values ◽  
The Mean ◽  
Cataract Patients

Abstract Background: To create an anterior chamber depth (ACD) regression model for adult cataract surgery candidates from China, and to evaluate the distribution of their ocular biometric parameters.Methods: The ocular biometric records of 28,709 right eyes of cataract surgery candidates who were treated at Aier Eye Hospitals in nine cities from 2018 to 2019 were retrospectively analyzed. All measurements were taken with IOLMaster 700. We included patients who were at least 40 years old and were diagnosed with cataract.Results: The mean age of the patients was 68.6 ± 11.0 years. The mean values recorded were as follows: axial length (AL), 24.17 ± 2.47 mm; mean keratometry (Km) value, 44.09 ± 3.25 D; corneal astigmatism (CA), 1.06 ± 0.98 D; ACD, 3.02 ± 0.45 mm; lens thickness (LT), 4.52 ± 0.45 mm; central corneal thickness (CCT), 0.534 ± 0.04 mm; and white to white (WTW) corneal diameter, 11.64 ± 0.46 mm. The proportion of patients with long axial length (AL >25 mm) decreased with age. ACD, LT, AL, Km, WTW, and age were correlated. In the multivariate regression analysis of ACD, which included LT, AL, WTW, sex, Km, CCT, and age, there was a reasonable prediction with adjusted R2 = 0.629.Conclusions: The results show that high myopes are inclined to schedule cataract surgery at a younger age. LT and AL were found to be important factors that affect ACD. This study provides reference data for cataract patients from China.

scholarly journals Males tend to come earlier for eye care with the National Health Coverage Programme in private hospitals

2018 ◽  
Vol 37 (2) ◽  
pp. 127
Author(s):  
Gilbert WS Simanjuntak ◽  
Jannes F Tan ◽  
Reinne Natali Christine
Keyword(s):  
Logistic Regression ◽  
Health Insurance ◽  
Cataract Surgery ◽  
National Health ◽  
Social Intervention ◽  
Multiple Logistic Regression ◽  
Eye Care ◽  
Private Hospitals ◽  
To Come ◽  
Cataract Patients

Background<br />Cataract is the leading cause of blindness in Indonesia, and poverty is a major barrier to having cataract surgery. Increasing the proportion of adults that have regular, comprehensive eye examinations for cataract and other common eye health problems is one of the National Health Insurance (JKN) objectives. The objective of this study was to determine the impact of vision insurance on eye care utilization of cataract patients in private hospitals with the JKN system as social intervention. <br /><br />Methods<br />A cross-sectional study was conducted involving 230 cataract patients in a private hospital. Inclusion criteria were patients with cataract surgery, diagnosis and follow up visit minimally two months after surgery. A multiple logistic regression was used to analyse the data.<br /><br />Results<br />Initial visual acuity (VA) was 0.13 ± 0.15 and final VA was 0.91 ± 0.15. Two patients had final VA of 0.2 and 0.15, respectively, in which the first was associated with persistent corneal edema and diabetes mellitus, and the other with corneal scar. Age, gender, and level of education were not associated with VA at the first visit (p&gt;0.05). Further analysis using a multiple logistic regression model was found to be significant (p=0.0104), with gender being associated with preoperative vision, where males tend to come earlier to undergo cataract surgery/treatment.<br /><br />Conclusion<br />Males tend to come earlier than females for cataract surgery with the National Health Insurance (JKN) programme, despite the social intervention of the programme.

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

An Epidemiological Study on Perception of the Cataract Patients regarding Cataract Surgery in Tertiary Care Hospital, Bareilly District, Uttar Pradesh

2016 ◽  
Vol 1 (4) ◽  
pp. 148-150
Keyword(s):  
Cataract Surgery ◽  
Epidemiological Study ◽  
Rural Areas ◽  
Tertiary Care Hospital ◽  
Tertiary Care ◽  
Uttar Pradesh ◽  
Care Hospital ◽  
Global Studies ◽  
Low Literacy ◽  
Cataract Patients

ABSTRACT Blindness is one of the significant social problems in India with 7 million of the total 45 million blind people in the world residing in our country. Major barriers to cataract surgery are poverty, no transportation, need not felt, and sex related. The low literacy rate among females and poor accessibility of the surgical sites were identified as important barriers in rural areas. There was also association found between socioeconomic status and cataract among cataract patients. In this study, a total of 208 participants who attended the ophthalmology outpatient department were studied for the observation on perception of cataract patient regarding cataract surgery. Data were analyzed and results were compared with other global studies. How to cite this article Kumar P, Joshi HS, Katyal R, Ranjan P. An Epidemiological Study on Perception of the Cataract Patients regarding Cataract Surgery in Tertiary Care Hospital, Bareilly District, Uttar Pradesh. Int J Adv Integ Med Sci 2016;1(4):148-150.

Presbyopia-correcting Intraocular Lenses in Cataract Surgery—A Focus on ReSTOR® Intraocular Lenses

2011 ◽  
Vol 04 (01) ◽  
pp. 44 ◽  
Author(s):  
Bret L Fisher ◽  
Keyword(s):  
Side Effects ◽  
Cataract Surgery ◽  
Blue Light ◽  
Crystalline Lens ◽  
Intraocular Lenses ◽  
Significant Advance ◽  
Near Vision ◽  
Significant Challenge ◽  
Corneal Aberrations ◽  
Cataract Patients

Correction for presbyopia in cataract patients is a significant challenge for ophthalmologists and cataract surgeons, however, an increasingly diverse array of intraocular lenses (IOLs) that are capable of providing good quality near vision is available. Currently available synthetic lenses use different technologies to correct for presbyopia. The latest iterations of the AcrySof® ReSTOR® IOLs combine an optic with a central apodized diffractive zone, a peripheral refractive zone, an aspheric anterior to combat corneal aberrations, and an ultraviolet (UV)- and blue-light filtering chromophore. The AcrySof® IQ ReSTOR® IOLs provide excellent near vision restoration with increased spectacle independence and minimal severe side effects. As a result, it may represent a significant advance over other presbyopia-correcting technologies. IOLs such as the AcrySof® IQ ReSTOR® are increasingly replicating the full visual capabilities of the crystalline lens and are an important advancement in the treatment of presbyopia in cataract patients.

A Randomized, Single-Center Study of Equivalence of 2 Intraocular Lenses Used in Cataract Surgery

Ophthalmology ◽  
2013 ◽  
Vol 120 (3) ◽  
pp. 482-488 ◽  
Author(s):  
Marios Constantinou ◽  
Vishal Jhanji ◽  
Xie Jing ◽  
Ecosse L. Lamoureux ◽  
Umberto Boffa ◽  
...  
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lenses ◽  
Single Center ◽  
Single Center Study ◽  
Center Study

scholarly journals Long-term renormalization of chromatic mechanisms following cataract surgery

2004 ◽  
Vol 21 (3) ◽  
pp. 301-307 ◽  
Author(s):  
PETER B. DELAHUNT ◽  
MICHAEL A. WEBSTER ◽  
LEI MA ◽  
JOHN S. WERNER
Keyword(s):  
Cataract Surgery ◽  
Optical Density ◽  
Color Space ◽  
Visible Spectrum ◽  
Crystalline Lens ◽  
Short Wave ◽  
Color Appearance ◽  
Large Shift ◽  
Before And After ◽  
Cataract Patients

The optical density of the human crystalline lens progressively increases with age, the greatest increase in the visible spectrum being at short wavelengths. This produces a gradual shift in the spectral distribution of the light reaching the retina, yet color appearance remains relatively stable across the life span, implying that the visual system adapts to compensate for changes in spectral sensitivity. We explored properties of this adaptive renormalization by measuring changes in color appearance following cataract surgery. When the lens is removed, cataract patients often report a large perceptual shift in color appearance that can last for months. This change in color appearance was quantified for four cataract patients (63–84 years) by determining the chromaticity of stimuli that appeared achromatic before surgery, and at various intervals after surgery for up to 1 year. Stimuli were presented on a calibrated CRT as 9.5-deg spots, with 3-s duration and 3-s interstimulus intervals (ISIs). Chromaticity was adjusted by the subjects in CIE L*a*b* color space with luminance fixed at 32 cd/m2, on a dark background. We also estimated the optical density of the cataractous lens by comparing absolute scotopic thresholds from 410 nm to 600 nm before and after surgery. The results demonstrated that immediately following surgery there is a large increase in the short-wave light reaching the retina, mainly below 500 nm. The achromatic settings generally showed an initial large shift in the “yellow” direction after surgery that gradually (but never fully) returned to the original achromatic point before surgery. The shifts in the achromatic point occur over a number of months and appear to occur independently of the fellow eye.

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