PubMed Journals Articles About "Femtosecond Laser Manual Cataract Surgery Related Cataracts" RSS

03:46 EST 14th December 2019 | BioPortfolio

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Showing "Femtosecond Laser Manual Cataract Surgery Related Cataracts" PubMed Articles 1–25 of 32,000+

Preoperative intraocular pressure as a strong predictive factor for intraocular pressure rise during vacuum application in femtosecond laser-assisted cataract surgery.

To evaluate the effect of preoperative intraocular pressure (IOP) and the vacuum level on IOP during femtosecond laser-assisted cataract surgery.

Manual small incision cataract surgery.

To review various techniques of manual small incision cataract surgery (MSICS), updates on training residents and fellows, and cost-effectiveness of the surgery.

Sumbawanga eye camp follow-up study 2019.

In 2019 the German Commission for the Prevention of Blindness (DKVB) held an eye camp in the Tanzanian town of Sumbawanga. For patients with mature cataracts and the ability to see light cateracts were treated by manual small incision cataract surgery (MSICS). For the first time in this camp the quality of the results of the cataract operations was measured.

Mechanism of atopic cataract caused by eosinophil granule major basic protein.

Atopic cataracts develop under the ages of 40 years, after which visual acuity rapidly declines. However, the mechanism underlying the development of atopic cataracts is not yet clear. We focused on the eosinophil granule major basic protein (MBP), which was detected in the aqueous humor of atopic cataracts previously, and which was cytotoxic. Specifically, we investigated its origin in this fluid and its effects on lens epithelial cells (LECs). MBP immunostaining was positive in atopic cataract-derived LE...

Comparison of Surgically Induced Astigmatism and Corneal Morphological Features Between Femtosecond Laser and Manual Clear Corneal Incisions.

To assess corneal morphologic changes and surgically induced astigmatism (SIA) following clear corneal incisions (CCIs) created manually or with the Catalys femtosecond laser (Johnson & Johnson Vision, Santa Ana, CA).

Femtosecond laser in refractive corneal surgery.

The introduction of the femtosecond (fs) laser has revolutionized ophthalmic surgery. With the worldwide application of fs-lasers, clinical outcomes and safety in corneal procedures have improved significantly and they have become an ideal tool for ultra-precise corneal refractive surgery. Flap creation in laser in situ keratomileusis (LASIK) is the most common use of this laser. It can also be used for other corneal refractive procedures including channel creation for the insertion of intrastromal corneal ...

Biology of Inherited Cataracts and Opportunities for Treatment.

Cataract, the clinical correlate of opacity or light scattering in the eye lens, is usually caused by the presence of high-molecular-weight (HMW) protein aggregates or disruption of the lens microarchitecture. In general, genes involved in inherited cataracts reflect important processes and pathways in the lens including lens crystallins, connexins, growth factors, membrane proteins, intermediate filament proteins, and chaperones. Usually, mutations causing severe damage to proteins cause congenital catarac...

Comparison of Manual Capsulorhexis and 25-Gauge Vitrectorhexis in Pediatric Cataract Surgery: A Pilot Study.

To compare short-term visual outcomes (best corrected visual acuity [BCVA]), visual axis opacification, anterior (ACCC) and posterior (PCCC) continuous curvilinear capsulorhexis size, shape, and extension, and their decentration between manual capsulorhexis and 25-gauge vitrectorhexis in pediatric cataract surgery with intraocular lens (IOL) implantation.

The quest for homeopathic and nonsurgical cataract treatment.

Age-related cataract occurs when crystallin proteins in the lens partially unfold and subsequently aggregate. Physicians and traditional healers alike have been exploring pharmacologic cataract treatment for hundreds of years. Currently, surgery is the only effective treatment. However, there are an abundance of homeopathic and alternative remedies that have been suggested as treatment for cataract. This article reviews the current understanding of cataract development and discusses several homeopathic reme...

Comparative Study of Extra Capsular Cataract Extraction (ECCE) and Small Incision Cataract Surgery (SICS): Experience on Cataract Surgery in a Tertiary Center of Army Hospital, Kathmandu.

Cataract is a common ailment of the old age hindering daily activities leading to poor quality of life due to poor vision. It is the commonest cause of treatable blindness. In practice, extracapsular cataract excision and small incision cataract surgery are the two-common surgery for cataract these days in developing part like in Nepal. Between these two cataract surgeries, ECCE and SICS; SICS gives the better visual outcome.

How much astigmatism to treat in cataract surgery.

Astigmatism correction in cataract surgery is a common surgical challenge. Although there are numerous approaches to its treatment during cataract surgery, there remains a lack of consensus on what level of postoperative astigmatism to target. We examine the literature to determine the effect of astigmatism on visual function and provide a recommendation on how much to treat in cataract surgery.

Comparison of Manual and Femtosecond Laser-Assisted Descemet Membrane Endothelial Keratoplasty for Failed Penetrating Keratoplasty.

To compare outcomes of manual Descemet membrane endothelial keratoplasty (M-DMEK) and femtosecond laser-assisted Descemet membrane endothelial keratoplasty (F-DMEK) in treatment of penetrating keratoplasty (PK) graft failure SETTING: Retrospective, interventional comparative case series METHODS: Included were all patients with a failed PK graft who underwent either F-DMEK (10 eyes of 10 patients) or M-DMEK (29 eyes of 29 patients) at Toronto Western Hospital and the Kensington Eye Institute between 2014 and...

The Clinical Relationship of Anterior Capsular Tears and Vertical Spacing in the Femtosecond Laser Capsulotomy Procedure.

To evaluate the frequency of anterior capsule tears and capsule edge irregularities in femtosecond laser anterior capsulotomy, including the effect of optimized vertical spacing settings.

Glaucoma following cataract surgery in the first 2 years of life: frequency, risk factors and outcomes from IoLunder2.

We investigated glaucoma related adverse events, predictors and impact at 5 years following surgery in the IoLunder2 cohort METHODS: Population based observational cohort study of children undergoing cataract surgery aged 2 years or under between January 2009 and December 2010. Glaucoma was defined using internationally accepted taxonomies based on the consequences of elevated intraocular pressure (IOP). Glaucoma related adverse events were any involving elevated IOP. Multivariable analysis was undertaken...

All-fiber passively mode-locked ultrafast laser based on a femtosecond-laser-inscribed in-fiber Brewster device.

We report on an in-fiber Brewster device with a 45° tilted fiber grating (TFG) directly written by a plane-by-plane femtosecond laser inscription method. Up to 10 dB polarization-dependent loss was achieved, proving effective polarizing functionality. Furthermore, we employ it as an in-line polarizer to successfully mode lock a fiber laser through the nonlinear polarization rotation technique. A stable soliton pulse train has been generated at 1563.64 nm with a pulse width of 624 fs and pulse energy of ...

Femtosecond Laser-Assisted Small Incision Sutureless Intrastromal Lamellar Keratoplasty (SILK) for Corneal Transplantation in Keratoconus.

To describe a femtosecond laser-assisted small incision sutureless intrastromal lamellar keratoplasty in an eye with severe keratoconus and report on the outcome with a 1-year follow-up.

3.5-mJ 150-fs Fe:ZnSe hybrid mid-IR femtosecond laser at 4.4  μm for driving extreme nonlinear optics.

We report on entering a new era of mid-IR femtosecond lasers based on amplification in a relatively new gain chalcogenide medium, Fe:ZnSe. Our hybrid all-solid-state laser system is based on direct pulse amplification of femtosecond seed from three-stage AGS-based-optical parametric amplification (OPA) in a Fe:ZnSe laser crystal optically pumped by a Cr:Yb:Ho:YSGG Q-switched nanosecond laser. The development of the pump source with output energy up to 90 mJ operating at a 10 Hz repetition rate regime and ...

Femtosecond laser self-assembly for silver vanadium oxide flower structures.

Flower-like silver vanadium oxide (SVO) micropatterns were realized by femtosecond laser in situ writing from its precursor. Self-assembled petals irradiated by a femtosecond laser were observed standing on the substrate along the scanned routine assisted by the formation of silver seeds and plasmonic-mediated effects. By controlling the concentration of ammonium monovanadate and the laser exposure time, a different thickness of petals was manipulated from ∼100  nm to micrometers. The SVO products wer...

Ultra-smooth micro-optical components of various geometries.

A dry-etching-assisted femtosecond laser lithography technology is proposed to in-site fabricate micro-optical components with an ultra-smooth three-dimensional continuous profile on a non-planar substrate. Owing to the nanometric resolution of femtosecond laser multi-photon polymerization and dry etching, smooth micro-optical components can be realized on hard materials with surface roughness of approximately 1.5 nm. With flexible and arbitrary designability of femtosecond laser lithography, various high-...

Traumatic Cataracts in Children, Long-Term Follow-up in an Israeli Population: A Retrospective Study.

Ocular trauma in the pediatric population may lead to cataract formation. Managing traumatic cataracts in a visually immature child is a major challenge and can result in poor visual outcome.

Comparison of different surgical approaches for pediatric cataracts: complications and rates of additional surgery during long-term follow-up.

To compare long-term postoperative complications of pediatric cataract surgery with primary intraocular lens (IOL) implantation associated with posterior capsulotomy (PC) and anterior vitrectomy (AV) between patients treated with a corneal or pars plicata/pars plana approach.

Cataract Surgery in Very Old Patients.

In recent years, there has been an increase in the number of very old patients requiring a cataract operation. However, there is little information on the intraoperative complications and safety in these patients. For various reasons, operations on patients from age 85 may be demanding: dense nuclear cataract, narrow pupils, low count of endothelial cells, loose zonula, and other ocular or systemic diseases. The aim of this retrospective study was to compare very old to younger cataract patients with respec...

Unplanned returns to the operating room within three months of pediatric cataract-related intraocular surgery: indications and risk factors.

To evaluate the indications and associated risk factors for unplanned returns to the operating room within 90 days of pediatric cataract-related surgery.

Methods for achieving adequate pupil size in cataract surgery.

Cataract surgery is the most common surgical procedure performed worldwide. Small pupils have been an eternal challenge for cataract surgeons; insufficient pupil dilation is associated with increased complication rates, including capsule rupture, vitreous loss, iris trauma or postoperative inflammation. The aim of the current review is to presents the methods for pupil dilation and the risk factors for a small pupil in a cataract patient.

Using the first-eye prediction error in cataract surgery to refine the refractive outcome of the second eye.

To refine the refractive outcome of the second eye after cataract surgery by deriving adjustment coefficients for intraocular lens (IOL) selection based on the prediction error (PE) of the first eye.

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