Abdelhalim Awidi

Abdelhalim Awidi

Johns Hopkins University

H-index: 4

North America-United States

Abdelhalim Awidi Information

University

Johns Hopkins University

Position

The Wilmer Eye Institute

Citations(all)

59

Citations(since 2020)

59

Cited By

20

hIndex(all)

4

hIndex(since 2020)

4

i10Index(all)

3

i10Index(since 2020)

3

Email

University Profile Page

Johns Hopkins University

Abdelhalim Awidi Skills & Research Interests

Ophthalmology

Top articles of Abdelhalim Awidi

Etiology and Characteristics of Patients Presenting with Eyelid Lacerations at a Level 1 Trauma Center

PurposeTo investigate the etiology and demographic associations of patients presenting with eyelid lacerations to a US level 1 trauma center emergency department (ED).Patient and MethodsA retrospective chart review of all patients with eyelid lacerations presenting to the ED at a single level 1 trauma center was performed. Eyelid lacerations were categorized as simple eyelid lacerations, eyelid lacerations with eyelid margin involvement, and eyelid lacerations with nasolacrimal system involvement. Data on demographics and clinical characteristics were analyzed.ResultsA total of 303 eyelid laceration cases were identified, 56% were simple eyelid lacerations, followed by 24% with nasolacrimal involvement and 20% involving the eyelid margin. Sixty percent of animal bites/scratches resulted in a nasolacrimal system involving laceration, most commonly affecting children. Falls were the most common etiology in …

Authors

Abdelhalim A Awidi,Jiawei Zhao,Ximin Li,Fatemeh Rajaii,Meleha Ahmad,Adrianna Jensen,Fasika A Woreta

Journal

Clinical Ophthalmology

Published Date

2024/12/31

Accuracy of intraocular lens formulas in combined phacovitrectomy

PurposeTo assess the refractive accuracy of eight intraocular lens (IOL) formulas in eyes that underwent combined phacovitrectomy.MethodsA retrospective chart review of 59 eyes that underwent uncomplicated phacovitrectomy between 2017 and 2020 at the Johns Hopkins Wilmer Eye Institute. Inclusion criteria were postoperative best corrected visual acuity of 20/40 or better within 6 months of surgery and IOL implantation in the capsular bag. The Barrett Universal II (BUII), Emmetropia Verifying Optical (EVOv2.0), Hill-Radial Basis Function (Hill-RBFv3.0), Hoffer Q, Holladay I, Kane, Ladas Super Formula (LSF), and SRK/T formulas were compared for accuracy in predicting postoperative spherical equivalents (SE) using Wilcoxon rank sum tests. Pearson’s correlation coefficients were used to assess correlations between biometric parameters and errors for all formulas.ResultsPrediction errors of SE ranged from …

Authors

Chanon Thanitcul,Abdelhalim A Awidi,John G Ladas,Aazim A Siddiqui,Christina R Prescott,Kraig S Bower,Albert S Jun,Yassine Daoud,Divya Srikumaran

Journal

International Ophthalmology

Published Date

2024/2/19

Factors Predictive of Refractive Error After Toric Lens Implantation

PurposeTo identify factors related to suboptimal refractive outcomes after toric intraocular lens implantation.Patients and MethodsA retrospective case-control chart review of 446 eyes with toric lens insertion by the same surgeon at a university hospital from 2016 to 2020 was conducted. Pre-operative exam findings, biometry, and one month and three month post-operative vision and refraction were noted. Reviewed charts were considered cases if uncorrected distance visual acuity (UDVA) was worse than 20/40, spherical equivalent (SE) >1 diopter (D) off target, or cylinder >1 D off target. ResultsOverall, 93.7% (n = 343) of eyes achieved UDVA of 20/40 or better, 92.7% (n = 306) were within 1 D of target SE, and 90.9% (n = 300) were within 1 D of target cylinder. UDVA cases had more eyes with prior LASIK (21.7% vs 7.0%, p = 0.01) and keratoconus (8.7% vs 0.6%, p < 0.001) than controls. More SE cases had prior …

Authors

Angela Gauthier,Abdelhalim A Awidi,Paige M Noble,Yassine J Daoud

Journal

Clinical Ophthalmology

Published Date

2023/12/31

Predictors of intraocular pressure reduction after femtosecond laser-assisted cataract surgery versus conventional phacoemulsification surgery: a prospective trial

PurposeTo evaluate the association between postoperative intraocular pressure (IOP) reduction and phacoemulsification parameters in patients who underwent both conventional phacoemulsification surgery (CPS) and femtosecond laser-assisted cataract surgery (FLACS).MethodsThis was a prospective multicenter comparative study that enrolled 90 participants who underwent cataract surgery at the University of Maryland Medical System and the Wilmer Eye Institute. Patients underwent FLACS in one eye and CPS in the fellow eye. IOP was measured prior to surgery and monitored through six months postoperatively. Demographic, clinical, biometric, and intraoperative variables including cumulative dissipated energy (CDE), aspiration time, and phacoemulsification time were analyzed for any significant association with postoperative IOP. Postoperative IOP reduction was the primary outcome variable. A …

Authors

Eva X Devience,Abdelhalim Awidi,Sachin Kalarn,Stephen DeVience,Brendan Bui,Wuqaas M Munir,Mona A Kaleem,Lily Im,Bennie H Jeng,Yassine Daoud,Osamah J Saeedi

Journal

International Ophthalmology

Published Date

2023/1

Comparison of scleral suture fixated versus scleral flanged haptic technique

Purpose: Different techniques of scleral fixation can be used to manage dislocated intraocular lenses (IOLs) in the absence of capsular support. This study aimed to determine the surgical efficacy and clinical outcomes of conventional sutured scleral IOL fixation versus flanged sutureless intrascleral fixation technique.Methods: A retrospective observational study of 144 eyes that underwent conventional sutured scleral fixation and 40 eyes that underwent flanged sutureless intrascleral fixation was performed over a six-year study period. The primary outcomes were uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA), assessed at the preoperative and postoperative month 3 (POM3) visits. Secondary outcomes were postoperative complications including reoperation due to IOL instability.Results: Mean UCVA change from preoperative to POM3 visits was-0.83±1.05 logMAR (p= 0.112) in the …

Authors

Angela Gauthier,Abdelhalim Awidi,David Zhao,Yassine Daoud

Journal

Investigative Ophthalmology & Visual Science

Published Date

2023/6/1

Anti-inflammatory medication use after cataract surgery: An online survey of practice patterns

Purpose:To determine current prescribing patterns for topical or intraocular/periocular anti-inflammatory medications (AIMs) after routine cataract surgery.Setting:kera-net online members.Design:Cross-sectional survey.Methods:An online survey was distributed to subscribers of kera-net, a global online platform sponsored by the Cornea Society. Questions were asked regarding the use of topical or intraocular/periocular AIM after cataract surgery and types of medications prescribed.Results:Of 217 surgeon respondents (23% response rate), 171 (79%) practiced in the United States and 171 (79%) were cornea subspecialists. Most of the respondents (n= 196, 97%) prescribed topical corticosteroids after routine cataract surgery. The most frequently prescribed were prednisolone acetate (n= 162, 83%), followed by dexamethasone (n= 26, 13%), difluprednate (n= 24, 12%), and loteprednol etabonate (n= 13, 7 …

Authors

Abdelhalim A Awidi,David F Chang,Kamran M Riaz,Ximin Li,Scott LaBorwit,Nazlee Zebardast,Divya Srikumaran,Christina R Prescott,Yassine J Daoud,Fasika A Woreta

Journal

Journal of Cataract & Refractive Surgery

Published Date

2024/3/1

Evolving Trends and Indications for Keratoplasty Internationally from 2011-2020

Purpose: To report evolving indications and techniques of corneal transplantation in countries outside of the United States.Methods: This was a retrospective database review analyzing publicly available annual reports from the Eye Bank Association of America (EBAA) from 2011-2020. These reports included data on the percentage of tissue exported outside the US from 1991 to 2020, types of procedures from 2011 to 2020, and indications for corneal transplantations from 2017 to 2020. The Cochran-Armitage test was used to assess evolving trends in keratoplasty procedure volumes and indications during these time periods.Results: The percentage of corneal tissue exported outside of the US increased from 9% in 1991 to 34% in 2020 (p< 0.001). Outside of North America, Asia has received the most transplanted corneas from USA member EBAA Eye Banks, accounting for 15% of all transplanted corneas from …

Authors

OMER SAEED,Grace Xiao,Abdelhalim Awidi,Meraf A Wolle,Uri Soiberman,Christina Rapp Prescott,Divya Srikumaran,Fasika Woreta

Journal

Investigative Ophthalmology & Visual Science

Published Date

2023/6/1

The Impact of Social Determinants of Health on Vision Loss From Cataracts and Cataract Surgery Utilization in the United States—A National Health Interview Survey Analysis

PurposeTo investigate the association of social determinants of health (SDOH) factors and cataract-related outcomes disparities.DesignCross-sectional, with a nationally representative sample.MethodsWe used publicly available data from the 2008, 2016, and 2017 National Health Interview Survey data sets. Outcome measures included self-reported prevalence for ever been diagnosed with cataract, vision loss secondary to cataracts, and the likelihood of undergoing cataract surgery. Survey-weighted, multivariable logistic regression models, adjusted for age, race and ethnicity, and other relevant covariates, were used to examine the association between SDOH factors and cataract-related outcomes.ResultsA total of 81,551 participants were included, who were predominantly between 18 and 44 years of age (49.6%), female (51.7%), and White (74.8%). Multivariable regression models with age as a covariate …

Authors

Abdelhalim A Awidi,Jiangxia Wang,Varshini Varadaraj,Muhammad Ali,Cindy X Cai,Alfred Sommer,Pradeep Y Ramulu,Fasika A Woreta

Journal

American journal of ophthalmology

Published Date

2023/10/1

The association of social factors and race/ethnicity with vision impairment prior to cataract surgery

Purpose: Cataracts are one of the leading causes of vision impairment (VI) in the US with unoperated cataracts carrying a significant risk of VI or blindness. Health disparities that disproportionally affect individuals according to their race/ethnicity and sociodemographic factors have been documented in several ophthalmic conditions. We sought to identify if there were differences in the severity of VI prior to cataract surgery according to race/ethnicity and sociodemographic factors.Methods: Demographic and clinical data from adults aged≥ 18 years who underwent cataract surgery at the Wilmer Eye Institute, Johns Hopkins Hospital were extracted from 2017-2019. Best recorded visual acuity (BRVA) was used to define VI, with mild VI defined as BRVA 20/40 or better and severe VI defined 20/200 or worse. In patients with bilateral cataracts, the eye with the worse vision was selected for analysis. A multinomial logistic …

Authors

Abdelhalim Awidi,Xi Dai,Ahmed Sabit,Niteesh Potu,Jiangxia Wang,Haihong Hu,Fasika Woreta

Journal

Investigative Ophthalmology & Visual Science

Published Date

2023/6/1

Comparison of simultaneous vs sequential pars plana vitrectomy and cataract surgery

BackgroundTo compare the clinical outcomes of patients undergoing sequential pars plana vitrectomy (PPV) followed by cataract extraction surgery (CE) [PPV/CE], simultaneous PPV and CE (PPV + CE), and sequential CE followed by PPV [CE/PPV].MethodsA retrospective observational cohort study of 427 eyes of 404 patients who underwent either sequential or simultaneous PPV and CE surgery between March 2016 and May 2021. Pre-operative and post-operative assessments (up to 2 years of follow-up visits) of uncorrected visual acuity (UCVA), corrected distance visual acuity (CDVA), spherical equivalent (SEQ), and refractive prediction error (RPE) was done. Main outcome measures were both visual (UCVA, CDVA) and refractive (RPE, SEQ).ResultsThere was a statistically significant difference in CDVA of the PPV/CE, PPV + CE, CE/PPV groups (logMAR 0.34 ± 0.40, 0.65 ± 0.61, and 0.55 ± 0.60 …

Authors

Abdelhalim A Awidi,Priya M Mathews,Nakul Shekhawat,Fasika A Woreta,Divya Srikumaran,Yassine J Daoud

Journal

BMC ophthalmology

Published Date

2023/2/23

Outcomes of secondary intraocular lens implantation and descemet stripping endothelial keratoplasty—Comparing staged versus combined surgical approach

Purpose:To report outcomes of secondary intraocular lens (IOL) implantation in the Infant Aphakia Treatment Study (IATS).Setting:Multicenter clinical practice.Design:Secondary analysis of patients enrolled in a randomized clinical trial.Methods:Details regarding all secondary IOL surgeries conducted in children enrolled in the IATS were compiled. Visual outcomes, refractive outcomes, and adverse events at the age of 10½ years were evaluated. Comparisons were made with eyes that remained aphakic and with eyes randomized to primary IOL placement.Results:The study included 114 infants, 57 in the aphakic group and 57 in the primary IOL group; 55 of 57 patients randomized to aphakia with contact lens correction were seen for the 10½-year study visit; 24 (44%) of 55 eyes had secondary IOL surgery. Median age at IOL surgery was 5.4 years (range 1.7 to 10.3 years). Mean absolute prediction error was 1.00 …

Authors

Deborah K VanderVeen,Carolyn D Drews-Botsch,Azhar Nizam,Erick D Bothun,Lorri B Wilson,M Edward Wilson,Scott R Lambert

Journal

Journal of Cataract & Refractive Surgery

Published Date

2021/2/1

Corneal lacerations following crab claw injuries

PurposeTo present two cases of full-thickness corneal lacerations following crab claw injuries.ObservationsThe first case is a 61-year-old male who presented to the emergency department (ED) with right-eye discharge, pain, and vision loss. Prior to presentation, the patient was with his friends on a fishing trip when one of them caught a crab and threw it to the patient, striking him in the right eye. The crab claw caused a penetrating injury to the cornea, with the patient presenting with a 9.5 mm full-thickness corneal laceration. He underwent emergent corneal laceration repair.Six months post-trauma, because of the sustained injury, the patient developed a traumatic cataract. Cataract removal with an iris-sutured intraocular lens (IOL) was subsequently performed. In subsequent follow-up visits, due to the corneal scarring that developed and IOL decentration, the patient's visual acuity continued to deteriorate. This …

Authors

Abdelhalim A Awidi,Fasika A Woreta

Journal

American journal of ophthalmology case reports

Published Date

2022/3/1

Management of corneal haze and edema post-PRK

Conclusions:The use of serum tears, corneal crosslinking, and phototherapeutic keratectomy may provide an additional therapeutic option in the treatment of corneal haze and edema that develops post-PRK.

Authors

Abdelhalim Awidi,Ishrat Ahmed,Yassine J Daoud

Journal

JCRS Online Case Reports

Published Date

2022/7/1

Epidemiology of eyelid lacerations presenting to a level I trauma center in the United States: 2018-2020

Purpose: Eyelid lacerations are a common cause of eye injuries presenting to the Emergency Department (ED), comprising around 10% of all visits. However, the epidemiology of eyelid laceration injuries has not been well documented in the literature. The objective of this study was to investigate the etiologies, demographic factors, and management strategies of patients presenting with eyelid lacerations to a US tertiary academic center ED.Methods: A retrospective chart review of all patients with eyelid lacerations presenting to the ED of a tertiary academic center from April 2018 to December 2020 was performed. An eyelid laceration was defined as any laceration involving the eyelids, its margins, and/or the canaliculus. Data on demographics, clinical characteristics, and management were analyzed. Variables associated with mechanism of injury in eyelid lacerations were assessed using multivariate logistic …

Authors

Jiawei Zhao,Abdelhalim Awidi,Ximin Li,Meleha Ahmad,Adrianna Jensen,Fatemeh Rajaii,Nicholas Mahoney,Grant Justin,Fasika Woreta

Journal

Investigative Ophthalmology & Visual Science

Published Date

2022/6/1

The association of social determinants of health with cataracts in the US

Purpose: Social determinants of health (SDOH) are factors defining an individual's social environment that impact eye care and vision outcomes. We used nationally representative data from the National Health Interview Survey (NHIS) to investigate the association of person-level SDOH, including gender, race/ethnicity, level of education, economic stability, employment, and access to healthcare with cataracts in the USMethods: Sociodemographic and health data for adults aged≥ 18 years was extracted from NHIS cycles 2008, 2016, and 2017. Participants were asked if they had ever been diagnosed with cataracts and whether they had undergone cataract surgery. Multivariable logistic regression analysis, adjusted for age, was used to assess the association between SDOH variables and self-reported cataract diagnosis and surgery.Results: Of the total 81,551 participants, 44,950 (55.12%) were females. 13,453 …

Authors

Muhammad Ali,Abdelhalim Awidi,Jiangxia Wang,Varshini Varadaraj,Cindy Cai,Divya Srikumaran,Pradeep Y Ramulu,Alfred Sommer,Fasika Woreta

Journal

Investigative Ophthalmology & Visual Science

Published Date

2022/6/1

Comparison of visual and refractive outcomes in simultaneous vs sequential pars plana vitrectomy and cataract surgery

Purpose: The decision to perform simultaneous versus sequential cataract extraction (CE) surgery and pars plana vitrectomy (PPV) has several implications for both the patient and the surgeon. We performed a retrospective, clinical study to compare outcomes of simultaneous versus sequential CE and PPV surgery in terms of postoperative visual acuity and refractive outcomes.Methods: We assessed three possible combinations of PPV and CE surgery: simultaneous PPV and cataract surgery (PPV+ CE); PPV followed by cataract surgery (PPV/CE), and cataract surgery followed by PPV (CE/PPV). A two-year retrospective chart review of 427 eyes with history of PPV and CE was performed. Assessments of UCVA and BCVA, spherical equivalent (SEQ), and target refraction were done. Outcomes studied were UCVA, BCVA, SEQ and refractive prediction error (RPE) at the 1 month, 3 months, 6 months, 1 year, and 2 …

Authors

Abdelhalim Awidi,Priya Mathews,Yassine Jamil Daoud

Journal

Investigative Ophthalmology & Visual Science

Published Date

2022/6/1

Outcomes of simultaneous Descemet Stripping Automated Endothelial Keratoplasty (DSAEK) and intraocular lens exchange surgery

Purpose: To evaluate the outcome of performing simultaneous Descemet Stripping Automated Endothelial Keratoplasty (DSAEK) and Intraocular Lens (IOL) exchange surgery.Methods: A non-randomized retrospective chart review was conducted on 41 patients. The studied outcomes included status of the intraocular lens, status of the cornea transplant, as well as best corrected distance visual acuity (BCDVA), spherical equivalent (SEQ), and intraocular pressure (IOP) pre-operatively, as well as post-operative 1 day, 1 week, 1 month, 3 months, 6 months, 12 months, and 24 months.Results: 41 patients, of which, 49% male, and 51% female were included. At the time of pre-operative assessment, 14 patients had an ACIOL implant (34.1%), 11 had a PCIOL implant (26.8%), 8 were aphakic (19.5%), with the 8 remaining patients (19.5%) having either a sulcus or capsular bag IOL implants.

Authors

Abdelhalim Awidi,Yassine Daoud

Journal

Investigative Ophthalmology & Visual Science

Published Date

2021/6/21

Why can’t I see 20/20? Factors predictive of suboptimal vision after toric lens implantation

Purpose: To determine patient characteristics and biometry data associated with residual refractive error after toric lens implantation for patients with astigmatism.Methods: A retrospective case-control chart review of eyes with residual refractive error and eyes that met target refraction at one month and beyond after cataract surgery with toric lens implantation by the same surgeon was conducted. Eyes with residual refractive error were defined as achieving UCVA of 20/40 or worse and BCVA better than 20/40 with a difference in logMAR UCVA and BCVA of 0.3 or more, while eyes that met target refraction achieved an UCVA of better than 20/40 after cataract surgery. All patients were aimed for distance. Pre-operative exam findings, ophthalmologic comorbidities, and intraocular lens measurements were collected.Results: In total, 30 eyes in 29 patients with residual refractive error and 194 eyes in 167 patients who …

Authors

Angela Gauthier,Abdelhalim Awidi,Paige Noble,Yassine Daoud

Journal

Investigative Ophthalmology & Visual Science

Published Date

2021/6/21

Abdelhalim Awidi FAQs

What is Abdelhalim Awidi's h-index at Johns Hopkins University?

The h-index of Abdelhalim Awidi has been 4 since 2020 and 4 in total.

What are Abdelhalim Awidi's top articles?

The articles with the titles of

Etiology and Characteristics of Patients Presenting with Eyelid Lacerations at a Level 1 Trauma Center

Accuracy of intraocular lens formulas in combined phacovitrectomy

Factors Predictive of Refractive Error After Toric Lens Implantation

Predictors of intraocular pressure reduction after femtosecond laser-assisted cataract surgery versus conventional phacoemulsification surgery: a prospective trial

Comparison of scleral suture fixated versus scleral flanged haptic technique

Anti-inflammatory medication use after cataract surgery: An online survey of practice patterns

Evolving Trends and Indications for Keratoplasty Internationally from 2011-2020

The Impact of Social Determinants of Health on Vision Loss From Cataracts and Cataract Surgery Utilization in the United States—A National Health Interview Survey Analysis

...

are the top articles of Abdelhalim Awidi at Johns Hopkins University.

What are Abdelhalim Awidi's research interests?

The research interests of Abdelhalim Awidi are: Ophthalmology

What is Abdelhalim Awidi's total number of citations?

Abdelhalim Awidi has 59 citations in total.

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