scholarly journals Correlation between one month post operative refractive status with pre operative calculated IOL power

2021 ◽  
Vol 7 (3) ◽  
pp. 492-495
Author(s):  
Sneha Singh
Keyword(s):  
Refractive Error ◽  
P Value ◽  
Spherical Equivalent ◽  
Accurate Calculation ◽  
Ocular Surgery ◽  
Complicated Cataract ◽  
History Of ◽  
Iol Power ◽  
Hyperopic Shift ◽  
The Mean

To study the correlation between preoperative calculated IOL power and post operative refractive error in temporal phacoemulsification. This study was a retrospective analysis in which data of 100 cases of senile cataract who underwent temporal phacoemulsification with foldable IOL was selected. Patients underwent post op examination at 4 weeks and only those patients whose vision was improving to 6/6 with or without correction was selected and their post operative refractive error in form of spherical equivalent was evaluated at 4 weeks of surgery and analysed with the preoperative calculated IOL power. All complicated cataract, cases with ocular pathology, patient with intraoperative or post operative complication and patient with history of any ocular surgery were excluded from the study. Formula used were SRK/T, HOFFER Q and HAIGIS.The mean IOL power used was20.39± 4.91, mean axial length was 23.43±1.53. The mean refractive error in form of spherical equivalent was-0.32±0.74. A total of 84 percent patients refractive error was upto 1D.A total of 37 percent patient had refractive error upto 0.25D, 57 percent upto 0.50 and 72 percent upto 0.75D.Myopic shift was present in 53 percent patients and hyperopic shift in 24 percent patient. There was no statistically significant correlation between iol power and refractive error at 4 week of temporal phacoemulsification as p value came as p=0.34While pre op accurate calculation of IOL power is very important for better visual acuity post op but just looking at any IOL power we cannot guess about refractive error that it may result.

scholarly journals Effect of pterygium excision on mean corneal curvature.

2021 ◽  
Vol 28 (04) ◽  
pp. 568-571
Author(s):  
Saira Bano ◽  
Sumaya Khan ◽  
Mahnoor Waqar ◽  
Moniba Iqbal ◽  
Hamza Waqar Bhatti ◽  
...  
Keyword(s):  
P Value ◽  
Corneal Curvature ◽  
Ocular Surgery ◽  
Department Of Ophthalmology ◽  
Before And After ◽  
Quasi Experimental ◽  
History Of ◽  
Induced Astigmatism ◽  
Pterygium Excision ◽  
The Difference

Objective: To determine the difference in mean corneal curvatures before and after pterygium excision. Study Design: Quasi-experimental study. Setting: Department of Ophthalmology, Holy Family Hospital, Rawalpindi. Period: 1st January 2015 to 1st July 2015. Material & Methods: 68 patients aged between 18 to 65 years were included in the study. Patients with history of ocular trauma, ocular surgery, glaucoma, anti-glaucoma treatment, allergy to steroids, pseudo pterygium, recurrent pterygium and presence of corneal abnormalities such as, scarring that might affect the astigmatic value were excluded. All patients underwent comprehensive ophthalmic examination by slit lamp and best corrected visual acuity and keratometric values were noted. Pterygium excision was done by a single surgeon. BCVA and keratometric readings were taken again after 2 weeks of pterygium excision. Results: Mean age was 37.60 ± 11.11 years. Out of these 68 patients, 44 (64.71%) were male and 24 (35.29%) were females. Mean pre-operative corneal curvature was 2.99 ± 0.69D and post-operative corneal curvature was 1.70 ± 0.40D with P-value of <0.0001 which is statistically significant. Conclusion: This study concluded that pterygium excision brings significant change in corneal curvature in patients of pterygium induced astigmatism.

scholarly journals A calculator proposal for estimating refractive error after 3 years using the onset biometric values in primary school children: a cohort study

2021 ◽  
Author(s):  
Feride Tuncer Orhan ◽  
Haluk Huseyin Gürsoy
Keyword(s):  
Primary School ◽  
Anterior Chamber ◽  
Refractive Error ◽  
Axial Length ◽  
Anterior Chamber Depth ◽  
Primary School Children ◽  
Optical Parameters ◽  
Spherical Equivalent ◽  
Final Data ◽  
The Mean

Aim To evaluate consecutive measurements of the biometric parameters, age, and refraction error in a Turkish population at primary school age. Materials and Methods A total of 197 children aged between 7-12 years were included. The data of three consecutive measurements of children, who were examined at least once a year for three years using both cycloplegic auto-refractometry and optical biometry, were used in this retrospective study. Spherical equivalent <-0.50D was considered to be myopic; >+0.75D was considered to be hypermetropic. Age, gender, body mass index, spherical equivalent, axial length, anterior chamber depth, central corneal thickness, keratometry, and lens thickness were analyzed. The onset data obtained in 2013 whereas, the final data were from 2015. Logistic and Cox regression analyses were performed (p<0.05). Results The mean of the onset and the final spherical equivalents were 0.19D (0.56), and 0.08D (0.80), respectively. The myopia prevalence was increased among refractive errors in observation periods (univariable analysis p=0.029; multivariable analysis p=0.017). The onset axial length (HR:4.55, 95%CI:2.87-7.24, p<0.001), keratometry (HR:2.04, 95%CI:1.55-2.67, p<0.001) and age (HR:0.73, 95%CI: 0.57-0.92, p=0.009) correlated myopia progression. To calculate the estimated spherical equivalent, the onset data were included in the logistic regression model. The onset data of spherical equivalent (β=0.916, p<0.001), axial length (β=-0.451, p<0.001), anterior chamber depth (β=0.430, p=0.005) and keratometry (β=-0.172, p<0.001) were found to be significantly associated with the mean SE at the final data. Conclusions To calculate the estimated spherical equivalent following three years, an equation was proposed. The estimated refractive error of children can be calculated by using the proposed equation with the associated onset optical parameters.

scholarly journals Post Cataract Surgery Refractive Error in Myopic Patients Using SRK/T Versus Holladay 1 Formula for IOL Power Calculation

2019 ◽  
Vol 34 (2) ◽  
Author(s):  
Sidra Anwar, Atif Mansoor Ahmad, Irum Abbas, Zyeima Arif
Keyword(s):  
Intraocular Lens ◽  
Refractive Error ◽  
Axial Length ◽  
Power Calculation ◽  
Mean Error ◽  
Iol Power Calculation ◽  
Group A ◽  
Iol Power ◽  
The Mean ◽  
Group B

Purpose: To compare post-operative mean refractive error with SandersRetzlaff-Kraff/theoretical (SRK-T) and Holladay 1 formulae for intraocular lens (IOL) power calculation in cataract patients with longer axial lengths. Study Design: Randomized controlled trial. Place and Duration of Study: Department of Ophthalmology, Shaikh Zayed Hospital Lahore from 01 January 2017 01 January, 2018. Material and Methods: A total of 80 patients were selected from Ophthalmology Outdoor of Shaikh Zayed Hospital Lahore. The patients were randomly divided into two groups of 40 each by lottery method. IOL power calculation was done in group A using SRK-T formula and in group B using Holladay1 formula after keratomery and A-scan. All patients underwent phacoemulsification with foldable lens implantation. Post-operative refractive error was measured after one month and mean error was calculated and compared between the two groups. Results: Eighty cases were included in the study with a mean age of 55.8 ± 6.2 years. The mean axial length was 25.63 ± 0.78mm, and the mean keratometric power was 43.68 ± 1.1 D. The mean post-operative refractive error in group A (SRK/T) was +0.36D ± 0.33D and in group B (Holladay 1) it was +0.68 ± 0.43. The Mean Error in group A was +0.37D ± 0.31D as compared to +0.69D ± 0.44D in group B. Conclusion: SRK/T formula is superior to Holladay 1 formula for cases having longer axial lengths. Key words: Phacoemulsification, intraocular lens power, longer axial length, biometry.

Thyroid Hormone Levels in Panic Disorder*

1987 ◽  
Vol 32 (6) ◽  
pp. 467-469 ◽  
Author(s):  
Vikram K. Yeragani ◽  
John M. Rainey ◽  
Robert Pohl ◽  
Aurelio Ortiz ◽  
Paula Weinberg ◽  
...  
Keyword(s):  
Panic Disorder ◽  
Thyroid Dysfunction ◽  
Clinical History ◽  
Panic Attacks ◽  
P Value ◽  
Mean Values ◽  
Trh Stimulation ◽  
History Of ◽  
The Mean ◽  
Normal Controls

A history of thyroid dysfunction has been reported in patients with phobic disorders. There is also evidence of a blunted TSH response to TRH stimulation in patients with panic disorder. In this study, values of T3, T4 and T7 were compared between 26 patients with panic attacks and 20 normal controls. Patients were diagnosed according to DSM-III criteria and those with a clinical history of thyroid dysfunction were excluded. Patients were not on any medication when the blood samples were drawn. The mean values of T3, T4 and T7 did not significantly differ between the two groups, suggesting no evidence of hypo or hyperthyroidism; however, the variance of distribution of T3, T4 and T7 values was significantly different between the two groups (Fmax values for T3: 2.55, p value < 0.05; T4: 3.15, p value < 0.01; T7: 2.55, p value < 0.05).

scholarly journals Hyperopic Shift caused by Capsule Contraction Syndrome after Microincision Foldable Intraocular Lens Implantation: case series

2018 ◽  
Author(s):  
Tae Gi Kim ◽  
Sang Woong Moon
Keyword(s):  
Cataract Surgery ◽  
Intraocular Lens ◽  
Refractive Error ◽  
Nd:Yag Laser ◽  
Case Series ◽  
Intraocular Lens Implantation ◽  
Lens Implantation ◽  
Hyperopic Shift ◽  
The Mean ◽  
Anterior Capsulotomy

Abstract Background: Increasing interest in microincision cataract surgery has led to the use of more flexible intraocular lens (IOL). Flexible IOL may cause more IOL deformation and refractive error when capsule contraction syndrome (CCS) occurred. In this retrospective observational case series study, the aim was to report four cases of hyperopic shift caused by CCS after phacoemulsification with microincision foldable intraocular lens implantation. Case presentation: All of four patients underwent phacoemulsification and in-the-bag implantation of an Akreos MI60 (Bausch and Lomb) IOL from 2010 to 2016 in our clinic. These patients had been diagnosed with CCS and had undergone Nd:YAG laser anterior capsulotomy. The mean age of the patients with CCS was 66.8 ± 6.7 years and the mean time for development of CCS after the cataract surgery was 9.3 ± 6.9 months. The mean spherical equivalent (SE) value at the time of the CCS diagnosis was 0.88 ± 0.91 D, which had shown a hyperopic shift compared to the SE value of − 0.91 ± 1.29 D after cataract surgery. The mean SE decreased by − 0.47 ± 1.14 D after Nd:YAG laser anterior capsulotomy. The mean age, axial length, anterior chamber depth, and preoperative SE were not significantly different between the patient with CCS and the patients without CCS. Conclusions: In the case of IOL implantation with flexible materials in microincision cataract surgery, CCS can cause a hyperopic shift. Refractive error caused by CCS can be effectively corrected by Nd:YAG laser anterior capsulotomy. Key Words: Capsule contraction syndrome, Microincision cataract surgery, Refractive change, Nd:YAG laser anterior capsulotomy, Intraocular lens

scholarly journals Astigmatic change after pterygium excision with autologous limbal conjunctival graft

2020 ◽  
Vol 9 (1) ◽  
pp. 25-30
Author(s):  
Dikchhya Sharma ◽  
Gunjan Prasai ◽  
Om Krishna Malla
Keyword(s):  
Age Groups ◽  
College Teaching ◽  
Corneal Astigmatism ◽  
P Value ◽  
Ocular Surgery ◽  
Medical College ◽  
Corneal Scarring ◽  
Significant Difference ◽  
History Of ◽  
Pterygium Excision

Background: Pterygium induces a significant amount of astigmatism. Pterygium excision with conjunctival limbal autograft results in significant reduction in astigmatism by inducing a reversal of pterygium induced corneal flattening thereby improving the vision. Objectives: The aim of this study was to investigate the amount of corneal astigmatism in patients with pterygium before and one month (4 weeks) after surgery.  Methodology: The prospective observational study was conducted in 31 patients who underwent pterygium excision with limbal autograft in Kathmandu Medical College Teaching Hospital during the study period of 12 months duration. Patients with recurrent pterygium, pseudopterygium, history of ocular trauma, history of ocular surgery, corneal scarring were excluded from the study. After surgery, patients were followed for four weeks. Findings were recorded in the proforma and statistical analysis was done in SPSS version 19.   Results: Pterygium was seen in all age groups with majority being in the active age range of 41-50 yrs. Females were most commonly affected. Significant difference in corneal astigmatism was noted postoperatively with a p value being 0.01. Conclusion: The technique of pterygium excision with limbal conjunctival autograft not only reduces the chances of recurrence but also helps in reducing the induced corneal astigmatism which is responsible for decreased vision in patients with pterygium.

scholarly journals EFFICACY OF CORNEAL COLLAGEN CROSSLINKING WITH RIBOFLAVIN AND ULTRAVIOLET-A IN PROGRESSIVE KERATOCONUS.

2020 ◽  
pp. 1-3
Author(s):  
Priyanka Raut ◽  
Nikhilesh * Wairagade ◽  
Praneeta Sakarkar
Keyword(s):  
P Value ◽  
Spherical Equivalent ◽  
Ultraviolet A ◽  
Collagen Crosslinking ◽  
Institutional Ethics ◽  
Uncorrected Visual Acuity ◽  
Corneal Collagen Crosslinking ◽  
The Mean ◽  
A Prospective Study ◽  
Corneal Collagen

PURPOSE-To evaluate outcomes of collagen crosslinking in patients having progressive keratoconus. METHODS- A prospective study was done in eyes that underwent corneal collagen crosslinking for treatment of progressive keratoconus. This study was performed after approval from Institutional Ethics Committee and informed consent was obtained from all the patients. Data was analysed with the help of JASP0.8.3.1 and MS-Excel 2013. RESULT-The mean age was 20.94 ± 2.04 years. 21 (63.63%) were males, 12 (36.36 %) were females. The mean uncorrected visual acuity (UCVA) pre-operative and post-operative at 6 months were 0.64 ± 0.37 and 0.53 ± 0.31 (logMAR) respectively (p value 0.03). Mean spherical equivalent pre-operatively and post-operatively at 6 months were -2.85 ± 2.14 and -2.38 ± 1.70 respectively (p < 0.001). Mean keratometry (Mean K) preoperative and post-operative were 49.85 ± 4.10 Dioptres (D) and 49.22 ± 4.09 D respectively (p = 0.0007). CONCLUSION- Corneal collagen crosslinking with UV-A and riboavin is a safe and effective method for halting the deterioration of progressive keratoconus.

scholarly journals Evaluation of Dentists' Practice in Obtaining and Recording Medical and Pharmacological History of Patients in Yazd City in 2020

2022 ◽  
Author(s):  
Samira Hajimaghsoodi ◽  
Ozra Mohiti ◽  
Shadi Paknejad
Keyword(s):  
Patient Care ◽  
Clinical Experience ◽  
Pearson Correlation ◽  
Legal Responsibility ◽  
P Value ◽  
Cross Sectional ◽  
Significant Difference ◽  
History Of ◽  
The Mean ◽  
Yazd City

Introduction: Dental profession has an ethical and legal responsibility in patient care. A properly maintained patient record is a very important aspect of this patient care. The aim of this study was to evaluate dentists' practice in obtaining and recording the medical and pharmacological history of patients in Yazd City in 2020. Methods: In this descriptive cross-sectional study, 197 dentists working in Yazd City were selected during the study and their practice in obtaining and recording medical history was evaluated using a valid questionnaire. Data were analyzed by SPSS23 statistical software t-test and Pearson correlation coefficient. Results: Out of 197 dentists participating in this study, 93 (52.8%) were male and 104 (47.2%) were female. Their mean age was 39.37± 8.36 years and their mean clinical experience was 6.5± 9.25 years. The mean score of dentists' practice in obtaining and recording the medical and pharmacological history was 61.30±4.95 (range 45-72) out of 72 points. There was no statistically significant difference between the mean score of dentists' practice by gender, clinical experience, university of study and degree (P-value>0.05), but there was a statistically significant relationship between dentists' age and their practice score (P-value=0.040). Conclusion: Based on the results of the present study, the mean practice source of dentists in obtaining and recording the medical and pharmacological history of patients was good. The effect of gender, university of study and degree on dentists' practice was not significant. However, with increasing age and experience in dentistry, the practice score of dentists was lower.

scholarly journals Intraocular pressure and circumpapillary retinal nerve fibre layer thickness in the Northern Ireland Cohort for the Longitudinal Study of Ageing (NICOLA): distributions and associations

2020 ◽  
pp. bjophthalmol-2020-316499
Author(s):  
Paul McCann ◽  
Ruth Hogg ◽  
David M Wright ◽  
Usha Chakravarthy ◽  
Tunde Peto ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Intraocular Pressure ◽  
Longitudinal Study ◽  
Northern Ireland ◽  
Refractive Error ◽  
Retinal Nerve Fibre Layer ◽  
Spherical Equivalent ◽  
The Mean ◽  
Male Sex ◽  
Nerve Fibre Layer

AimsTo describe the distributions of and associations with intraocular pressure (IOP) and circumpapillary retinal nerve fibre layer (cRNFL) thickness in a population-based study.MethodsNorthern Ireland Cohort for the Longitudinal Study of Ageing participants underwent a computer-assisted personal interview, a self-completion questionnaire and a health assessment (HA). At the HA, participants underwent IOP measurement using Ocular Response Analyser and spectral-domain optical coherence tomography with Heidelberg Spectralis. Participants also underwent a range of anthropometric, ophthalmic, cardiovascular, cognition and blood tests. Participants who attended the HA and had a vertical cup-to-disc ratio (VCDR) measurement in at least one eye were eligible for the study. Participants without any IOP or cRNFL measurements were excluded from the respective analyses.ResultsThere were 3221 participants eligible for this study (5753 eyes included in the IOP analysis and 5461 eyes included in the cRNFL analysis). The mean (SD) Goldmann correlated IOP (IOPg) was 15.39 mm Hg (3.55 mm Hg). The mean (SD) average global cRNFL thickness was 94.39 µm (11.18 µm). Increased IOPg was associated with increased age, male sex, hypertension, refractive error (myopic decrease in spherical equivalent) and increased corneal resistance factor, while beta-blocker drug use was associated with lower IOPg in the fully adjusted multivariate analysis. Thinner average global cRNFL was associated with Alzheimer’s disease in the age-adjusted and sex-adjusted model. In the fully adjusted multivariate analysis, increased age, male sex, left eyes, hypertension, increased VCDR, refractive error (myopic decrease in spherical equivalent) and increased IOPg were associated with thinner average global cRNFL, while Parkinson’s disease and current (vs never) smoking status were associated with thicker average global cRNFL.ConclusionsIncreased IOP and reduced cRNFL were associated with increased age, myopic refractive error, male sex and hypertension. Alzheimer’s disease was associated with thinner average global cRNFL, while Parkinson’s disease was associated with thicker average global cRNFL.

scholarly journals Indications for destructive ocular surgeries in Nigeria

2013 ◽  
Vol 5 (1) ◽  
pp. 24-27 ◽  
Author(s):  
KF Monsudi ◽  
AA Ayanniyi ◽  
AH Balarabe
Keyword(s):  
Artificial Eye ◽  
Ocular Surgery ◽  
Female Ratio ◽  
Common Indication ◽  
History Of ◽  
Ocular Tumours ◽  
The Mean ◽  
Willingness To Use ◽  
Male To Female ◽  
Type Of Surgery

Introduction: Destructive ocular surgery (DOS) means eye loss. An audit of its indications would be useful in reducing its incidence. Objective: To determine indications for destructive ocular surgeries. Materials and methods: The case records (files) of all the patients who had DOS in a tertiary health facility in Nigeria from January 2004 to December 2011 were reviewed retrospectively. The information extracted include the bio data, indication for DOS, type of surgery performed and history of the use of traditional eye medications (TEM) and willingness to use an artificial eye (AE). Results: Thirty-seven patients had DOS. The mean age of the patients was 35.51years (SD 21.6) and the male to female ratio was 2.1:1. Evisceration was the commonest DOS performed , in 30 eyes (81.1 %). The most common indication for DOS was intraocular infection, in 15 eyes (40.5 %), followed, among others, by trauma in 13 (35.1 %) and malignant ocular tumours in 4 (10.8 %). There was association between age and indication for DOS (P = 0.032). Many patients, 15 (40.5%), used TEM and most, 34 (91.9%), refused an artificial eye (AE) after surgery. Conclusions: The most common indication for DOS in this study was intraocular infection. Evisceration was the commonest destructive eye surgery offered. Nepal J Ophthalmol 2013; 5(9):24-27 DOI: http://dx.doi.org/10.3126/nepjoph.v5i1.7817

Sign in / Sign up

Export Citation Format

Share Document