Evaluating the Laser Output of the Micropulse P3 Laser Delivery Device Following Repeated Use.

Abstract:

PRECIS:Repeated use of the Micropulse P3 (MP3) probe during micropulse transscleral cyclophotocoagulation is associated with an increase in laser output over time. PURPOSE:The purpose of this study was to examine the laser efficacy of the MP3 probe following repeated use. METHODS:This was an observational study carried out using Cyclo G6 Glaucoma Laser System with 6 MP3 laser delivery probes. Each probe was fired for 100 seconds, every 10 minutes until the probe was deactivated. The laser output was measured using a laser power meter. Maximum observed laser power output was also noted. RESULTS:All probes were deactivated after 90 minutes (9 cycles) of use. Mean laser output of all 6 probes was determined, and results suggested an increase in output with time. When examining the differences in total laser output for each cycle, no significant differences were observed for the first 4 cycles, but not for the remaining 5 cycles, wherein the increased laser outputs were found to be significantly different from baseline (cycle 1). CONCLUSION:Findings suggest a possible increase in laser output with repeated use, especially after 4 cycles, and clinicians need to be cautious if they intend to use the probes repeatedly.

journal_name

J Glaucoma

journal_title

Journal of glaucoma

authors

Lun K,Suwandono ME,Koh V,Chew PT

doi

10.1097/IJG.0000000000001277

subject

Has Abstract

pub_date

2019-08-01 00:00:00

pages

697-700

issue

8

eissn

1057-0829

issn

1536-481X

journal_volume

28

pub_type

杂志文章
  • The effect of dehydration and fasting on ocular blood flow.

    abstract:PURPOSE:To investigate the effects of dehydration and fasting on retrobulbar-vessel blood velocity in healthy subjects. METHODS:Twenty-eight eyes of 28 normal subjects without ocular disease were enrolled in this study. Each subject had a baseline color-Doppler imaging ultrasound of the central retinal artery, tempora...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/00061198-200210000-00007

    authors: Inan UU,Yücel A,Ermis SS,Oztürk F

    更新日期:2002-10-01 00:00:00

  • Proline-assisted Tube Insertion Through Sulcus in Ahmed Valve.

    abstract::To prevent corneal endothelial cell loss, ciliary sulcus tube insertion is preferred for the pseudophakic eye. However, we sometimes encounter technical difficulties when inserting the tube through the sulcus. Even in cases in which we are able to insert a 23-G needle through the sulcus into the space between the iris...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000001602

    authors: Kasuga T,Asaoka S,Asada Y,Iwamoto S,Hirakata T,Honda R,Ohta T,Matsuda A

    更新日期:2020-09-01 00:00:00

  • A randomized clinical trial of selective laser trabeculoplasty versus argon laser trabeculoplasty in patients with pseudoexfoliation.

    abstract:PURPOSE:To evaluate the efficacy of selective laser trabeculoplasty (SLT) versus argon laser trabeculoplasty (ALT) in lowering the intraocular pressure (IOP) in patients with open-angle glaucoma or ocular hypertension secondary to pseudoexfoliation. DESIGN:Multicentered randomized clinical trial. PARTICIPANTS:A total...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.1097/IJG.0b013e31829e55e4

    authors: Kent SS,Hutnik CM,Birt CM,Damji KF,Harasymowycz P,Si F,Hodge W,Pan I,Crichton A

    更新日期:2015-06-01 00:00:00

  • The Association Between Clinical Features Seen on Fundus Photographs and Glaucomatous Damage Detected on Visual Fields and Optical Coherence Tomography Scans.

    abstract:PURPOSE:To classify the appearance of the optic disc seen on fundus photographs of healthy subjects and patients with or suspected glaucoma whose diagnosis was based upon visual fields (VFs) and spectral-domain optical coherence tomography (sdOCT) results. PATIENTS AND METHODS:One eye of 100 patients with or suspected...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000000640

    authors: Alhadeff PA,De Moraes CG,Chen M,Raza AS,Ritch R,Hood DC

    更新日期:2017-05-01 00:00:00

  • CO2 laser-assisted sclerectomy surgery, part II: multicenter clinical preliminary study.

    abstract:PURPOSE:To evaluate the efficacy of CO2 laser-assisted sclerectomy surgery (CLASS) in primary and pseudoexfoliative open-angle glaucoma. MATERIALS AND METHODS:Patients for primary filtration surgery underwent CLASS with a CO2 laser system (OT-134-IOPtiMate, IOPtima Ltd., Ramat Gan, Israel). This self-controlled system...

    journal_title:Journal of glaucoma

    pub_type: 临床试验,杂志文章,多中心研究

    doi:10.1097/IJG.0b013e3181f7b14f

    authors: Geffen N,Ton Y,Degani J,Assia EI

    更新日期:2012-03-01 00:00:00

  • Ahmed Valve Upstream Obstruction Caused by Fibrous Ingrowth: Surgical Approach.

    abstract::Glaucoma secondary to penetrating keratoplasty can be challenging and multiple surgeries may be needed to control the intraocular pressure (IOP), including the use of glaucoma drainage implants. However, late failure of these drainage implant surgery is common, mostly because of excessive scarring or bleb encapsulatio...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000000739

    authors: Medeiros Pinto J,Pinto Ferreira N,Abegão Pinto L

    更新日期:2017-10-01 00:00:00

  • The prevalence of glaucomatous defects with short-wavelength automated perimetry in patients with elevated intraocular pressures.

    abstract:PURPOSE:To determine the prevalence of abnormal short-wavelength automated perimetry (SWAP) visual fields in subjects with elevated intraocular pressures (IOP) for 7 existing definitions of mild glaucomatous loss, and to explore the agreement between them. PATIENTS AND METHODS:Seven hundred and forty-four eyes of 379 ...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/01.ijg.0000146363.90506.b2

    authors: Reus NJ,Colen TP,Lemij HG

    更新日期:2005-02-01 00:00:00

  • Acute Angle Closure Following Implantable Collamer Lens for Myopia.

    abstract::We report a case of acute angle closure with significantly elevated intraocular pressure 9 hours after implantation of a phakic intraocular lens for high myopia. ...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000001533

    authors: Strungaru MH,González Rodríguez J,Weisbrod DJ,Tayfour F,Buys YM

    更新日期:2020-07-01 00:00:00

  • Evaluation of macular thickness and peripapillary retinal nerve fiber layer thickness for detection of early glaucoma using spectral domain optical coherence tomography.

    abstract:PURPOSE:To evaluate the diagnostic ability of macular parameters and peripapillary retinal nerve fiber layer (RNFL) parameters for early glaucoma using spectral domain optical coherence tomography (SD-OCT). MATERIALS AND METHODS:One eye from 32 early glaucoma patients (including preperimetric glaucoma) and 32 normal p...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0b013e3181e079ed

    authors: Nakatani Y,Higashide T,Ohkubo S,Takeda H,Sugiyama K

    更新日期:2011-04-01 00:00:00

  • Three-Year Follow-up of a Novel Aqueous Humor MicroShunt.

    abstract:AIMS:An observational study to determine the safety and efficacy of filtering surgery employing a microlumen aqueous drainage device (InnFocus MicroShunt), used intraoperatively with Mitomycin C, implanted alone or in combination with phacoemulsification. MATERIALS AND METHODS:Single-site, prospective, nonrandomized s...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000000368

    authors: Batlle JF,Fantes F,Riss I,Pinchuk L,Alburquerque R,Kato YP,Arrieta E,Peralta AC,Palmberg P,Parrish RK 2nd,Weber BA,Parel JM

    更新日期:2016-02-01 00:00:00

  • Can frequency-doubling technology and short-wavelength automated perimetries detect visual field defects before standard automated perimetry in patients with preperimetric glaucoma?

    abstract:PURPOSE:To assess the ability of frequency-doubling technology (FDT) perimetry and short-wavelength automated perimetry (SWAP) to detect glaucomatous damage in preperimetric glaucoma subjects. PARTICIPANTS:Two hundred seventy-eight eyes of 278 subjects categorized as normal eyes [n=98; intraocular pressure <20 mm Hg, ...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0b013e31803bbb17

    authors: Ferreras A,Polo V,Larrosa JM,Pablo LE,Pajarin AB,Pueyo V,Honrubia FM

    更新日期:2007-06-01 00:00:00

  • The Effect of Labor on the Intraocular Pressure in Healthy Women.

    abstract:PURPOSE:To investigate the effect of modern vaginal labor using epidural anesthesia on the intraocular pressure (IOP) and on the mean ocular perfusion pressure (MOPP) in healthy women. PATIENTS AND METHODS:In this prospective observational study, eligible candidates were healthy pregnant women for vaginal delivery wit...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000000559

    authors: Meshi A,Armarnik S,Mimouni M,Segev F,Segal O,Kaneti H,Assia EI,Geffen N

    更新日期:2017-01-01 00:00:00

  • Adherence to Follow-up Recommendations Among Individuals in the Philadelphia Glaucoma Detection and Treatment Project.

    abstract:PURPOSE:To evaluate rates of adherence to free follow-up eye exam appointments among participants in the Philadelphia Glaucoma Detection and Treatment Project. PATIENTS AND METHODS:Ophthalmologists and testing equipment were brought directly to participants at risk for glaucoma at 43 community sites in Philadelphia. T...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章,多中心研究

    doi:10.1097/IJG.0000000000000716

    authors: Hark LA,Leiby BE,Waisbourd M,Myers JS,Fudemberg SJ,Mantravadi AV,Dai Y,Gilligan JP,Resende AF,Katz LJ

    更新日期:2017-08-01 00:00:00

  • Inadvertent filtering bleb due to corneal stromal wick syndrome.

    abstract::We report a unique case in which an inadvertent filtering bleb was created after a complicated cataract surgery through an unusual mechanism: an internal fragment of corneal stroma, which was still attached at one end of the clear corneal wound, was pushed into the anterior chamber, became inadvertently entrapped in t...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0b013e3182a07604

    authors: Alasil T,Jakobiec FA,Zakka FR,Gardiner M,Chen TC

    更新日期:2013-09-01 00:00:00

  • Effects of Axial Length and Age on Circumpapillary Retinal Nerve Fiber Layer and Inner Macular Parameters Measured by 3 Types of SD-OCT Instruments.

    abstract:PURPOSES:To evaluate the effects of axial length and age on the circumpapillary retinal nerve fiber layer (cpRNFL) and the inner macular parameters measured using 3 spectral-domain optical coherence tomography (OCT) instruments. METHODS:A total of 102 normal eyes (1 eye per subject) were imaged using Cirrus, RTVue, an...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000000216

    authors: Ueda K,Kanamori A,Akashi A,Tomioka M,Kawaka Y,Nakamura M

    更新日期:2016-04-01 00:00:00

  • Ex-PRESS miniature glaucoma device implanted under a scleral flap alone or combined with phacoemulsification cataract surgery.

    abstract:PURPOSE:Our purpose was to evaluate the clinical outcomes of the Ex-PRESS miniature glaucoma device placed under a partial-thickness scleral flap as a single procedure or combined with phacoemulsification cataract surgery. METHODS:This was a comparative consecutive case series of 345 eyes: 231 eyes treated with Ex-PRE...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0b013e31818fb44e

    authors: Kanner EM,Netland PA,Sarkisian SR Jr,Du H

    更新日期:2009-08-01 00:00:00

  • Using the early postoperative intraocular pressure to predict pressure control after a trabeculectomy.

    abstract:PURPOSE:The goal of this study was to identify the early postoperative intraocular pressure (IOP) that predicts low pressure control after a trabeculectomy with mitomycin C. MATERIALS AND METHODS:This study retrospectively analyzed the medical records of the initial trabeculectomy with mitomycin C in patients with pri...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0b013e318285fd7d

    authors: Okimoto S,Kiuchi Y,Akita T,Tanaka J

    更新日期:2014-08-01 00:00:00

  • Prostaglandin efficacy and safety study undertaken by race (the PRESSURE study).

    abstract:PURPOSE:Latanoprost, travoprost, and bimatoprost are prostaglandin or prostamide-type ocular hypotensive medications, all of which are effective and safe for lowering intraocular pressure (IOP). Most studies with these types of drugs have included patients mainly from European or white ethnic backgrounds; however, some...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.1097/IJG.0b013e3181c4aeac

    authors: Birt CM,Buys YM,Ahmed II,Trope GE,Toronto Area Glaucoma Society.

    更新日期:2010-09-01 00:00:00

  • Stratus OCT in dominant optic atrophy: features differentiating it from glaucoma.

    abstract:PURPOSE:To describe the Stratus optical coherence tomography (OCT) retinal nerve fiber layer (RNFL) thickness profile of dominant optic atrophy (DOA), to differentiate it from that of glaucoma. METHODS:RNFL thickness was measured using Stratus OCT in 32 eyes of 16 DOA patients. RESULTS:The temporal-most clock hour me...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0b013e31804d23aa

    authors: Kim TW,Hwang JM

    更新日期:2007-12-01 00:00:00

  • Asymmetry of Macular Vessel Density in Bilateral Early Open-angle Glaucoma With Unilateral Central 10-2 Visual Field Loss.

    abstract::PRéCIS:: Glaucomatous eyes without detectable 10-2 visual field loss showed significant macular vessel density loss, especially in inferior quadrant of perifoveal area. Macular vessel density loss spatially corresponded with structural and functional damage. PURPOSE:The purpose of this study was to investigate the ch...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000001578

    authors: Lu P,Xiao H,Chen H,Ye D,Huang J

    更新日期:2020-10-01 00:00:00

  • Comparing spectral-domain optical coherence tomography and standard automated perimetry to diagnose glaucomatous optic neuropathy.

    abstract:PURPOSE:To compare the abilities of standard automated perimetry (SAP) and spectral-domain optical coherence tomography (SDOCT) in diagnosing eyes with glaucomatous optic neuropathy (GON). METHODS:In a cross-sectional study, 280 eyes of 175 subjects referred to tertiary eye care center by general ophthalmologists for ...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000000048

    authors: Rao HL,Yadav RK,Addepalli UK,Begum VU,Senthil S,Choudhari NS,Garudadri CS

    更新日期:2015-06-01 00:00:00

  • Rate of response to latanoprost or timolol in patients with ocular hypertension or glaucoma.

    abstract:PURPOSE:This study determined the rate of response to latanoprost compared with timolol in patients with glaucoma or ocular hypertension, whether some patients convert from non-responders to responders after more prolonged therapy, and whether this conversion represents a delayed response or random fluctuation. METHOD...

    journal_title:Journal of glaucoma

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1097/00061198-200312000-00004

    authors: Camras CB,Hedman K,US Latanoprost Study Group.

    更新日期:2003-12-01 00:00:00

  • The Cost and Economics of Endoscopic Cyclophotocoagulation in the United Kingdom: A Tertiary Center Experience.

    abstract:PRECIS:As the only microinvasive glaucoma surgery (MIGS) with a reusable component, the cost per procedure of endoscopic cyclophotocoagulation (ECP) diminishes with each successive use. We present a cost comparison of ECP with other MIGS devices, based on our clinical practice. PURPOSE:ECP delivers diode laser via a r...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000001245

    authors: Ho H,Ho J,Rodrigues I,Syrimi M,Goyal S,Lim KS

    更新日期:2019-06-01 00:00:00

  • Intereye Symmetry of 24-Hour Intraocular Pressure-related Patterns in Untreated Glaucoma Patients Using a Contact Lens Sensor.

    abstract:PURPOSE:Scarce data are available on the symmetry of 24-hour intraocular pressure (IOP) variations between fellow eyes of glaucoma patients, and such evidence could have profound consequences on the interpretation of monocular therapeutic trials. The objective is to evaluate the intereye correlation of continuously mea...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000001563

    authors: Mansouri K,Gillmann K

    更新日期:2020-08-01 00:00:00

  • Glycerin-preserved Human-donor Corneoscleral Patch Grafts for Glaucoma Drainage Devices.

    abstract:PRECIS:Glycerin-preserved, human-donor, corneoscleral patch grafts are effective and safe for glaucoma drainage device (GDD) implantation, and they are comparable to previously reported materials. It can be preserved with the sterile technique for up to 12 months. PURPOSE:To evaluate the efficacy and safety of glyceri...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000001610

    authors: Kitnarong N,Srikulsasitorn B,Aurboonsong T

    更新日期:2020-11-01 00:00:00

  • Repeatability and Agreement of Swept Source and Spectral Domain Optical Coherence Tomography Evaluations of Thickness Sectors in Normal Eyes.

    abstract:PURPOSE OF THE STUDY:The purpose of the study was to evaluate the clinical efficacy of swept-source optical coherence tomography (SS-OCT), we compared the intradevice repeatability of thickness measurements obtained using SS-OCT to that of measurements obtained using spectral domain OCT (SD-OCT), and assessed the inter...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000000536

    authors: Lee SY,Bae HW,Kwon HJ,Seong GJ,Kim CY

    更新日期:2017-02-01 00:00:00

  • Corneal Ectasia Induced by Prostaglandin Analogues.

    abstract::Our purpose is to document the first case of unilateral mild corneal ectasia developed in an apparently nonpredisposed cornea after topical latanoprost treatment, and its regression after treatment withdrawal. We describe a 44-year-old man with visual impairment in his left eye (OS) and a past medical history of myopi...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:10.1097/IJG.0000000000001660

    authors: Rodrigo-Rey S,Bolívar G,Arranz-Marquez E,Cañones-Zafra R,Teus MA

    更新日期:2020-12-01 00:00:00

  • Peripapillary focal retinal arteriolar narrowing in open angle glaucoma.

    abstract:PURPOSE:Optic disc photographs of 750 patients attending a glaucoma practice were examined to identify focal peripapillary arteriolar narrowing. METHODS:A subgroup of 110 of these patients' photographs, who had also had finger circulation tested for vasospasm to cold, were divided into patients with peripapillary foca...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:

    authors: Rankin SJ,Drance SM

    更新日期:1996-02-01 00:00:00

  • A comparison of intraocular pressure measurements with the XPERT noncontact tonometer and Goldmann applanation tonometry.

    abstract:PURPOSE:The purpose of this study was to compare intraocular pressure measurements obtained with XPERT, an upgraded model of the noncontact tonometer, with those from Goldmann applanation tonometry. METHODS:An average of three intraocular pressure measurements, generated by the XPERT, was compared with a single readin...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:

    authors: Popovich KS,Shields MB

    更新日期:1997-02-01 00:00:00

  • Long-term Glaucoma Treatment with MK-507, Dorzolamide, a Topical Carbonic Anhydrase Inhibitor.

    abstract:PURPOSE:The purpose of this study was to examine the long-term efficacy and safety of dorzolamide (a topical carbonic anhydrase inhibitor, previously known as MK-507) as an ocular hypotensive agent. METHODS:This open-labeled, multicenter, 52-week trial enrolled patients with primary open-angle glaucoma or ocular hyper...

    journal_title:Journal of glaucoma

    pub_type: 杂志文章

    doi:

    authors: MK-507 Clinical Study Group.

    更新日期:1995-02-01 00:00:00