A5045387311- Corneal surgery and disorders
- Intraocular Surgery and Lenses
- Ophthalmology and Visual Impairment Studies
- Glaucoma and retinal disorders
- Ocular Surface and Contact Lens
- Ocular Infections and Treatments
- Corneal Surgery and Treatments
- Retinal and Macular Surgery
- Global Healthcare and Medical Tourism
- Ocular and Laser Science Research
- Traumatic Ocular and Foreign Body Injuries
- Optical measurement and interference techniques
- Medical and Biological Sciences
- Retinal Diseases and Treatments
- Digital Imaging in Medicine
- Ureteral procedures and complications
- Ophthalmology and Visual Health Research
- Ocular Diseases and Behçet’s Syndrome
- Connexins and lens biology
- Optical Coherence Tomography Applications
- Anesthesia and Pain Management
- Retinal and Optic Conditions
- Innovations in Medical Education
- Anorectal Disease Treatments and Outcomes
- Advances in Oncology and Radiotherapy
Baylor College of Medicine
2016-2025
Swiss Tropical and Public Health Institute
2024
University of Southern California
2012-2023
Research to Prevent Blindness
1993-2023
Johnson & Johnson (United States)
2022-2023
Alcon (China)
2007-2023
University of Findlay
2023
Middle East Studies Association of North America
2021-2023
Carl Zeiss (Germany)
2021-2023
Sid W Richardson Foundation
2021-2023
To determine the contribution of posterior corneal astigmatism to total and error in estimating from anterior measurements only using a dual-Scheimpflug analyzer.Cullen Eye Institute, Baylor College Medicine, Houston, Texas, USA.Case series.Total was calculated ray tracing, simulated keratometry, astigmatism, changes with age were analyzed. Vector analysis used assess produced by only.The study analyzed 715 corneas 435 consecutive patients. The mean magnitude -0.30 diopter (D). steep...
To evaluate the impact of posterior corneal astigmatism on outcomes with toric intraocular lenses (IOLs).Cullen Eye Institute, Baylor College Medicine, Houston, Texas, USA.Case series.Corneal was measured using 5 devices before and 3 weeks after cataract surgery. Toric IOL alignment recorded at surgery slitlamp postoperatively. The actual calculated based refractive postoperatively effective power Holladay 2 formula. prediction error as difference between by each device astigmatism. Vector...
To evaluate the accuracy of refractive prediction 4 intraocular lens (IOL) power calculation formulas in eyes with axial length (AL) greater than 25.0 mm and to propose a method optimizing AL improve accuracy.Cullen Eye Institute, Baylor College Medicine, Houston, Texas, USA, Department Ophthalmology, Goethe University, Frankfurt am Main, Germany.Case series.Refractive errors Holladay 1, Haigis, SRK/T, Hoffer Q were evaluated consecutive cases. Eyes randomized group used develop by...
(1). To investigate the distribution of anterior corneal higher-order aberrations (HOAs, 3rd to 6th orders) in population; (2). evaluate symmetry between right and left eyes individuals; (3). study variations with aging.Cullen Eye Institute, Baylor College Medicine, Houston, Texas, USA.Using CTView program (Sarver Associates, Inc.), HOAs were computed from central 6.0 mm zone topographic maps (Humphrey Atlas, Carl Zeiss, Inc.) 228 134 subjects (mean age 50 years +/- 17 (SD); range 20 79...
Calculating the surgically induced refractive change following ocular surgery is important for evaluating results of keratorefractive procedures, smaller incisions and various wound closures cataract surgery, effect suturing techniques suture removal corneal transplant surgery. We present a ten-step method calculating spherical- cylindrical-induced in manner suitable programmable calculator or personal computer. Several applications are given including (1) adding overrefraction to spectacle...
Purpose: To explore the distribution of ocular higher-order aberrations (HOAs, 3rd to 6th orders) in population, evaluate symmetry between right and left eyes each subject using a Hartmann-Shack wavefront sensor, study differences aberration as function age. Setting: Cullen Eye Institute, Baylor College Medicine, Houston, Texas, USA. Methods: Ocular HOAs were examined across 6.0 mm pupil 532 306 subjects (mean age 41 years ± 10 [SD] [range 20 71 years]; mean WaveScan spherical equivalent...
We performed phacoemulsification or planned extracapsular cataract extraction on posterior polar cataracts in 31 eyes of 22 patients and experienced eight cases capsular rupture (26%). Capsular occurred during removal the opacity cleaning capsule after had been removed. believe that excessive adherence to unusual thinness predisposed these rupture.
To evaluate and compare the accuracy of formulas methods for calculating intraocular lens (IOL) power eyes with an axial length (AL) greater than 26.0 mm.Ein-Tal Eye Center, Tel-Aviv, Israel.Retrospective case series.The postoperative refraction results in myopic AL over mm were compared predicted refractions calculated using standard (Holladay 1, SRK/T, Hoffer Q, Haigis) optical IOL constants, User Group Laser Interference Biometry AL-adjustment method new-generation (Barrett Universal II,...
Purpose To compare the accuracy of Barrett True-K formula with other methods available on American Society Cataract and Refractive Surgery (ASCRS) post-refractive surgery intraocular lens (IOL) power calculator for prediction IOL after previous myopic laser in situ keratomileusis (LASIK) or photorefractive keratectomy (PRK). Setting Cullen Eye Institute, Baylor College Medicine, Houston, Texas, private practice, Mesa, Arizona, USA. Design Retrospective case series. Methods The was compared...
To evaluate the accuracy of methods intraocular lens (IOL) power prediction after previous laser in situ keratomileusis (LASIK) or photorefractive keratectomy (PRK) using American Society Cataract and Refractive Surgery IOL calculator.Cullen Eye Institute, Baylor College Medicine, Houston, Texas, private practice, Mesa, Arizona, USA.The following were evaluated: pre-LASIK/PRK keratometry (K) surgically induced change refraction, no data. The predicted was calculated with each method actual...
To evaluate and compare the accuracy of 2 toric intraocular lens (IOL) calculators with or without a new regression formula.Ein-Tal Eye Center, Tel-Aviv, Israel, Lions Institute, Nedlands, Western Australia, Australia.Retrospective case series.A formula (Abulafia-Koch) was developed to calculate estimated total corneal astigmatism based on standard keratometry measurements. The error in predicted residual calculated by Alcon Holladay IOL adjustments Abulafia-Koch formula. These results were...
Purpose To compare the accuracy of total keratometry (TK) and standard (K) from a swept-source optical coherence tomography biometer for intraocular lens (IOL) power calculation in eyes with previous corneal refractive surgery. Setting Cullen Eye Institute, Baylor College Medicine, Houston, Texas, USA. Design Retrospective case series. Methods The differences between TK K their association were assessed. For IOL calculation, combinations 1) Haigis, Haigis-L, Barrett True-K, 2) Haigis...
To evaluate and compare the accuracy of different methods to measure predict postoperative astigmatism with toric intraocular lens (IOL) implantation.Ein-Tal Ophthalmology Center, Tel-Aviv, Israel.Retrospective case series.Postoperative corneal was measured 3 devices (IOLMaster 500; optical low-coherence reflectometry [OLCR]-based Lenstar LS 900; Atlas topographer) compared manifest astigmatic refractive outcome in patients IOLs. The error predicted residual calculated by vector analysis...
Purpose To investigate the accuracy of 7 intraocular lens (IOL) calculation formulas in predicting refractive outcome eyes with axial lengths (AL) equal to or less than 22.0 mm and evaluate factors contributing prediction errors. Setting Cullen Eye Institute, Baylor College Medicine, Houston, Texas, private practice, Mesa, Arizona, USA. Design Retrospective case series. Methods Eighty-six 67 patients were included. Seven IOL evaluated: Barrett Universal II, Haigis, Hill-RBF, Hoffer Q,...
To describe the association between presence of epithelial defects and development diffuse lamellar keratitis (DLK), "Sands Sahara" syndrome, following laser in situ keratomileusis (LASIK).Cullen Eye Institute, Department Ophthalmology, Baylor College Medicine, Houston, Texas, USA.In this retrospective study, postoperative clinical course surgical outcomes 735 eyes 358 consecutive patients who had myopic LASIK December 1998 August 1999 were reviewed. Of procedures, 680 primary procedures 55...