Publications by authors named "Michael J Taravella"
Aim: To investigate sex-based differences in the occurrence of intra-operative and post-operative complications and associated visual outcomes following cataract surgery.
Methods: This was a retrospective study of patients who had phacoemulsification cataract surgery at the University of Colorado School of Medicine. Data collected included the patient's health history, ocular comorbidities, operative and post-operative complications, and the post-operative best corrected visual acuity (BCVA).
Purpose: The aim of this study was to compare endothelial cell loss for DMEK (Descemet membrane endothelial keratoplasty) tissue preparation techniques using the modified Jones tube and the DMEK EndoGlide with and without viscoelastic material to protect the endothelium.
Methods: This ex vivo study included 10 DMEK grafts prepared using each of the 3 abovementioned techniques. After tissue preparation, transport conditions were simulated for a minimum of 45 hours before deployment of the DMEK tissue and quantification of endothelial cell loss.
Purpose: To evaluate the time cost of intraoperative aberrometry (IA), to compare IA prediction error to the prediction error associated with conventional formulas using preoperative calculations (PC) and evaluate when IA provides clinically relevant benefit.
Methods: This is a retrospective study of eyes that underwent cataract phacoemulsification surgery with IA at an academic eye center. IA versus PC prediction error were compared amongst various preoperative and intraoperative characteristics.
Purpose: To assess the accuracy of intraoperative aberrometry, the Barrett True-K No History (Barrett TKNH), Barrett TKNH with posterior corneal measurements (Barrett TKNH with PC), Shammas-PL, and Haigis-L formulas in patients with cataract who had prior myopic refractive surgery.
Methods: This was a retrospective consecutive case series of patients with prior myopic refractive surgery undergoing cataract extraction. Mean absolute error (MAE) and median absolute error (MedAE) of refraction prediction were compared for each formula.
Importance: Federal policy in the United States prohibits corneal donation by men who have had sex with another man (MSM) in the preceding 5 years, whereas Canada enforces a 12-month ban. The potential consequences of these policies on corneal donations should be evaluated.
Objective: To estimate the number of potential corneal donations associated with MSM deferral policies in the United States and Canada.
What Is the Cost of a Posterior Capsule Rupture Complication?
Ophthalmic Surg Lasers Imaging Retina
August 2020
Background And Objective: To examine the cost of a posterior capsule rupture (PCR) in patients who underwent planned phacoemulsification.
Patients And Methods: Retrospective review of 8,113 cataract surgeries performed between January 2014 and December 2017 at one academic institution. The rate of PCR was 0.
Purpose: To examine the risk of posterior capsule rupture (PCR) during phacoemulsification cataract surgery in patients who received intravitreal anti-vascular endothelial growth factor (anti-VEGF) injections prior to surgery.
Methods: A retrospective study was conducted of cataract surgeries at the Sue Anschutz-Rodgers UCHealth Eye Center from January 1, 2014, through December 31, 2018. The primary outcome was the occurrence of PCR during surgery.
Purpose: To evaluate patients with Down syndrome for keratoconus and corneal abnormalities using Scheimpflug imaging (Pentacam HR) in a pediatric setting.
Methods: The Pentacam scans of patients with Down syndrome seen at Children's Hospital Colorado Ophthalmology Department were reviewed retrospectively, and the following data were collected: keratometry values, pachymetry values, components of the Belin ABCD Grading System, the Belin/Ambrosio enhanced ectasia display D value, and topometric indices, including ISV, IVA, and KI. Subjective interpretation was used to classify scans as normal, abnormal, keratoconus suspect, and definite keratoconus.
Purpose: To compare visual outcomes of eyes with and without previous laser refractive surgery that received an extended depth of focus intraocular lens during cataract surgery.
Methods: This was a retrospective review of all eyes implanted with an extended depth of focus intraocular lens by two surgeons. Preoperative demographic and eye examination information were collected, as well as postoperative refraction, uncorrected distance visual acuity, and Visual Function Index (VF-14) questionnaire responses.
Purpose: To evaluate the relationship between 1-day postoperative intraocular pressure (IOP) after phacoemulsification cataract surgery and tamsulosin use.
Setting: University of Colorado Health Eye Center, Aurora, Colorado, USA.
Design: Retrospective cohort study.
Purpose: To compare size, circularity, and centration outcomes of continuous curvilinear capsulorhexis (CCC) performed with or without assistance from the VERUS ophthalmic caliper (Mile High Ophthalmics, Denver, CO).
Methods: This was a multicenter retrospective consecutive case controlled series review.
Results: Data from 40 consecutive cases using the VERUS device for CCC were compared to 40 consecutive cases with standard manual CCC.
Purpose: To describe the use of the femtosecond laser in complex cataract cases.
Setting: Department of Ophthalmology, University of Colorado, Aurora, Colorado, USA.
Design: Retrospective case series.
Purpose: To compare the differences in the time of completion of cataract surgery for residents and attending surgeons and to assign a dollar cost.
Setting: University of Colorado teaching hospital, Aurora, Colorado, USA.
Design: Comparative case series.
Purpose: To compare human donor corneal lenticule thickness, endothelial cell viability, area of cell damage, and cell counts between corneal tissue prepared with a double-pass microkeratome cut versus the standard single-pass microkeratome cut.
Setting: University of Colorado Teaching Hospital, Aurora, Colorado, USA.
Design: Experimental study.
Purpose: To characterize how residents learn phacoemulsification and determine which steps of the procedure are most difficult to master.
Setting: University of Colorado Hospital, Aurora, Colorado, USA.
Design: Comparative case series.
Purpose: To compare the frequency of posterior capsulotomies in patients receiving a multifocal or monofocal intraocular lens (IOL) of a similar design following cataract extraction.
Methods: Four hundred seventeen eyes underwent cataract extraction and IOL implantation; 275 eyes received the AcrySof SN6OWF (Alcon Laboratories Inc) one-piece monofocal lens (monofocal group) and 142 eyes received the RESTOR multifocal lens (SN60D3 or SA60D3, Alcon Laboratories Inc) (multifocal group). Surgery was performed by two surgeons at one site.
Purpose: To evaluate cases of delayed nonarteritic anterior and posterior ischemic optic neuropathy after cataract extraction and to evaluate the need for centralized prospective reporting of nonarteritic ischemic optic neuropathy after cataract extraction.
Setting: Neuro-ophthalmology Clinics, University of Colorado Health Sciences Center and Denver Veterans Affairs Medical Center, Denver, Colorado, USA.
Methods: A retrospective review of all patients referred to the Neuro-ophthalmology Divisions, University of Colorado Health Sciences Center and Denver Veterans Affairs Medical Center, from January 2001 to October 2005 was performed.
Incidence of intraoperative flap complications in laser in situ keratomileusis.
J Cataract Refract Surg
January 2002
Purpose: To evaluate the incidence of intraoperative flap complications in laser in situ keratomileusis (LASIK) and compare the incidence between eyes and between the Hansatome and Automated Corneal Shaper (Bausch & Lomb) microkeratomes.
Setting: Open-access outpatient excimer laser surgical facility.
Methods: A retrospective analysis was done of 84711 primary LASIK cases performed between November 1998 and May 2000 in 28 national open-access laser facilities.