A5087579810- Glaucoma and retinal disorders
- Intraocular Surgery and Lenses
- Retinal Diseases and Treatments
- Retinal and Optic Conditions
- Retinal Imaging and Analysis
- Retinal and Macular Surgery
- Corneal surgery and disorders
- Surgical Simulation and Training
- Dermatologic Treatments and Research
- Skin Protection and Aging
- Optical Coherence Tomography Applications
- Anatomy and Medical Technology
- Augmented Reality Applications
- Ophthalmology and Visual Impairment Studies
- Cutaneous Melanoma Detection and Management
- Wound Healing and Treatments
- Traumatic Ocular and Foreign Body Injuries
- Pulsed Power Technology Applications
- Particle Accelerators and Free-Electron Lasers
- Musculoskeletal pain and rehabilitation
- Simulation-Based Education in Healthcare
- Ophthalmology and Eye Disorders
- Ocular and Laser Science Research
- Particle Detector Development and Performance
Purdue University West Lafayette
2017-2020
Optivia Biotechnology (United States)
2006-2010
Coherent (United States)
2000
University of Minnesota
2000
Cosmetic Laser Dermatology
2000
To evaluate a femtosecond laser system to create the capsulotomy.Porcine and cadaver eye studies were performed at OptiMedica Corp., Santa Clara, California, USA; human trial was Centro Laser, Santo Domingo, Dominican Republic.Experimental clinical study.Capsulotomies by an optical coherence tomography-guided evaluated in porcine eyes. Subsequently, procedure 39 patients as part of prospective randomized study laser-assisted cataract surgery. The accuracy capsulotomy size, shape, centration...
An image-guided, femtosecond laser can create precisely placed, accurate cuts in the eye to improve cataract surgery.
In Brief Sequential application of a large number single spots in retinal photocoagulation often results significant physician fatigue and patient discomfort. This article describes semiautomated scanning laser photocoagulator that greatly improves efficiency increases the precision by rapid patterns lesions using pulses as short 10 milliseconds.
Objective: To systematically evaluate the effects of laser beam size, power, and pulse duration 1 to 100 milliseconds on characteristics ophthalmoscopically visible retinal coagulation lesions.Methods: A 532-nm Nd:YAG was used irradiate 36 retinas in Dutch Belt rabbits with sizes 66, 132, 330 µm.Lesions were clinically graded minute after placement, their size measured by digital imaging, depth assessed histologically at different time points.Results: Retinal lesion increased linearly power...
To compare 2 optical patient interface designs used for femtosecond laser-assisted cataract surgery.Optimedica Corp., Santa Clara, California, USA, and Centro Laser, Santo Domingo, Dominican Republic.Experimental clinical studies.Laser capsulotomy was performed during surgery with a curved contact lens (CCL) or liquid immersion (LOI). The presence of corneal folds, incomplete capsulotomy, subconjunctival hemorrhage, eye movement laser treatment were analyzed using video coherence tomography....
Telementoring can improve treatment of combat trauma injuries by connecting remote experienced surgeons with local less-experienced in an austere environment. Current surgical telementoring systems force the surgeon to regularly shift focus away from operating field receive expert guidance, which lead surgery delays or even errors. The System for Augmented Reality (STAR) integrates expert-created annotations directly into surgeon's view. views looking at a tablet display suspended between...
In Brief Purpose: To evaluate the safety, selectivity, and healing of retinal lesions created using a continuous line scanning laser. Methods: A 532-nm Nd:YAG laser (PASCAL) with beam diameters 40 μm 66 was applied to 60 eyes 30 Dutch-belted rabbits. Retinal exposure duration varied from 15 μs μs. Lesions were acutely assessed by ophthalmoscopy fluorescein angiography. pigment epithelial (RPE) flatmounts evaluated live-dead fluorescent assay. Histological analysis performed at 7 time points...
ABSTRACT Introduction Point-of-injury (POI) care requires immediate specialized assistance but delays and expertise lapses can lead to complications. In such scenarios, telementoring benefit health practitioners by transmitting guidance from remote specialists. However, current systems are not appropriate for POI care. This article clinically evaluates our System Telementoring with Augmented Reality (STAR), a novel system based on an augmented reality head-mounted display. The is portable,...
Background and Objective: A novel computer-guided laser treatment for open-angle glaucoma, called patterned trabeculoplasty, its preliminary clinical evaluation is described. Patients Methods: Forty-seven eyes of 25 patients with glaucoma received 532-nm 100-μm spots. Power was titrated trabecular meshwork blanching at 10 ms sub-visible applied 5-ms pulses. The arc patterns 66 spots rotated automatically after each application so that the new pattern an untreated position. Results:...
Abstract Combat trauma injuries require urgent and specialized care. When patient evacuation is infeasible, critical life-saving care must be given at the point of injury in real-time under austere conditions associated to forward operating bases. Surgical telementoring allows local generalists receive remote instruction from specialists thousands miles away. However, current systems have limited annotation capabilities lack direct visualization future result surgical actions by specialist....
About a third of people in the developed world will undergo cataract surgery their lifetime. Currently, is manual procedure highly dependent on surgical skills and complicating factors. We tested an image-guided laser system to improve precision reproducibility surgery. A long-range Optical Coherence Tomography automatically discerns anterior posterior surfaces lens cornea, co-registered femtosecond then performs capsulotomy, segmentation corneal incisions. Capsular strength following...
We appreciate Dr. Carifi’s interest and welcome the opportunity to respond his comments. The benchmark numbers quoted by Carifi are far below standard for laser vision correction, so there certainly is a need better refractive results. A number of variables contribute errors in final outcome after cataract surgery. However, since introduction optical biometry, IOL position now main source error power calculation rather than an axial length measurement error.1 One most important determinants...
It is well known that the use of tightly focused continuous wave lasers can be an effective treatment common telangiactasia. In general, technique requires skills a highly dexterous surgeon using aid optical magnification. Due to nature this approach, it has proven largely impractical. To overcome this, we have developed automated system alleviates strain on user associated with manual tracing method. The device makes high contrast illumination, simple monochromatic imaging, and machine...
Pan-retinal photocoagulation in patients with diabetic retinopathy typically involves application of more than 1000 laser spots; often resulting physician fatigue and patient discomfort. We present a semi-automated patterned scanning photocoagulator that rapidly applies predetermined patterns lesions; thus, greatly improving the comfort, efficiency precision treatment. Patterns selected from graphical user interface are displayed on retina an aiming beam, treatment can be initiated...
Cryogen spray cooling (CSC) is used to minimize the risk of epidermal damage during pulsed laser treatment port wine stain (PWS) birthmarks. Unfortunately, current approach CSC does not provide necessary protection for all patients, particularly those with darker skin types. Therefore, alternative approaches need be sought improve PWS therapy. On a previous numerical study we showed that using multiple-intermittent spurts and pulses could permit, under certain conditions, use higher doses...