Cataract & Refractive

The increased level of ultraviolet (UV) rays in the Earth's atmosphere due to the depleted ozone layer is increasing the risk of cataract-induced blindness, according to a spokesman from the Fred Hollows Foundation.

The Akreos AO microincision lens (model MI60; Bausch and Lomb) and the Amaris excimer laser (Schwind) have been named amongst 33 winners at the 2008 Medical Design Excellence Awards (MDEA).

Cases of intraoperative floppy iris syndrome (IFIS) encompass a wide spectrum of severity, so it is important for surgeons to master several different strategies to increase the likelihood of achieving a safe outcome in these eyes.

A surgical microscope designed specifically for cataract and anterior segment surgery - the OMS-710 Operation Microscope - has been launched by Topcon Medical Systems, Inc.

Cationorm, a cationic emulsion to treat dry eye, has been launched in France by Novagali Pharma.

As the Asian eyecare market begins to explode, Alcon is preparing to be close to the action by adding a manufacturing plant in Singapore.

Novartis is to purchase 25% of Alcon from majority stakeholder Nestlé, with an option to purchase Nestlé's remaining shares, which currently amount to approximately 52% of Alcon.

A new study assessing the quality of life after LASIK is to be conducted by the American Society of Cataract and Refractive Surgery (ASCRS), the American Academy of Ophthalmology, the FDA and the National Eye Institute, it was announced at this year's ASCRS meeting in Chicago, US.

A clinical trial of Xibrom (bromfenac sodium ophthalmic solution; ISTA Pharmaceuticals) has demonstrated equivalence of end-point achievement between the 0.18% and the 0.09% formulations, according to topline results published by ISTA Pharmaceuticals.

Following designation of New Technology Intraocular Lens (NTIOL) status by the Centers for Medicare and Medicaid Services (CMS), AMO has introduced the Tecnis 1-Piece IOL to the US market.

Swiss researchers have identified the defect in the coding region of the gene responsible for childhood cataract by assessing family members who suffered from autosomal dominant juvenile cataract, according to a study published in the March 2008 issue of the American Journal of Human Genetics.

PresbyLASIK or multifocal IOL implantation yield superior visual outcomes in patients with presbyopia, improving both near and distance vision, as opposed to accommodative IOL implantation, which improves distance vision only, according to a study published in the March 2008 issue of the Journal of Refractive Surgery.

Prophylactic treatment with dorzolamide-timolol fixed combination is more effective than brimonidine in reducing IOP after phacoemulsification surgery, claims a study published in the January issue of Eye & Contact Lens: Science & Clinical Practice.

Microincision cataract surgery (MICS) does not degrade the optical quality of the cornea, however, it does introduce changes in coma and higher order aberrations, according to a Spanish study.

Removing cataracts using a bimanual microincision technique and implanting a traditional foldable intraocular lens (IOL) through a separate incision causes no more corneal astigmatism compared with a traditional coaxial technique using the same lens, according to a Finnish study.

Microincision cataract surgery (MICS) with the Whitestar ICE and CASE systems (AMO) can be performed safely and effectively even in the hardest nuclei, according to a Turkish study.

The loss of confidence in bimanual microincision surgery over the years has caused many surgeons to seek an alternative approach that balances the advantages of minimally invasive cataract surgery with the safety of a sleeved tip. The hunt is also still on for a multifocal lens that offers good vision across all distances, coupled with a low incidence of side effects.

Modern cataract surgery requires the implantation of a lens with design features that ensure stability, excellent biocompatibility and minimal posterior capsule opacification (PCO), using an injector which is safe and predictable, through an incision that is as small as possible. Is this possible without compromising standards? I would argue that it is.

Microincision cataract surgery (MICS) intraocular lenses (IOLs) provide better patient outcomes, which are more like refractive surgery in terms of reduced postoperative astigmatism and minimal induced aberrations, according to a French study.

Clopidogrel and warfarin are associated with a significant increase in minor complications of sharp needle and subtenon?s cannula local anaesthesia but are not associated with sight-threatening complications, according to a study published online ahead of print by Eye.

Microincisional bimanual phacoemulsification and non-penetrating glaucoma surgery appears to be a safe option for patients with glaucoma and co-existing cataract, according to a Turkish study.

A Czech study has found that 2.2 mm square clear corneal incisions for microcoaxial phacoemulsification are very stable and provide adequate postoperative sealing.

Nowadays, cataract surgery not only has a therapeutic purpose, which is to substitute an opaque lens with a transparent IOL, but it also has a refractive aim; to correct previous refractive defects in order to eliminate the use of spectacles. The need for a good postoperative visual acuity and a fast functional recovery has lead cataract surgery to become more and more micro-invasive in nature so that surgical trauma is reduced, a faster recovery and good, time-stable visual results are achieved.1 The achievement of this goal has been realized, thanks to the improvement of surgical techniques, in the form of microcoaxial phacoemulsification and bimanual microphacoemulsification,2 which now allow the almost complete reduction of surgically induced astigmatism.

I have been so impressed with the aspheric optics and good centration of the Akreos MI60 that I use it as my first choice for implantation; including in patients with visual-critical occupations such as aviators and air traffic controllers

The new Custom Control Software on the MICS Millennium platform (Bausch & Lomb) results in less endothelial cell loss than torsional phacoemulsification performed on the Infiniti System (Alcon), according to a Greek study.

Microincision cataract surgery (MICS) with implantation of an aspheric intraocular lens (IOL) through a 1.8 mm incision can minimize surgically-induced corneal and ocular aberrations and improve optical performance, according to a French study.

Results of the European Society of Cataract and Refractive Surgeons (ESCRS) study of endophthalmitis prophylaxis do not appear to have had a significant impact on the practices of US cataract surgeons, according to the findings of an online survey conducted by the American Society of Cataract and Refractive Surgery (ASCRS) Cataract Clinical Committee.1 The survey results were reported by David F. Chang, MD, at the Spotlight on Cataracts 2007 symposium held during the annual meeting of the American Academy of Ophthalmology.

During accommodation, changes in lens thickness are mainly caused by deformation of the nucleus. In older, non-accommodating lenses, the deformations occur predominantly in the equatorial region and do not affect the central curvatures of the lens, according to a report published online ahead of print by Acta Ophthalmologica.

There have always been good arguments for surface ablation, but in most cases I have personally preferred LASIK. Yet every year I find myself performing more and more surface ablation cases and I am not alone in this.

The AcuFocus ACI 7000 corneal inlay could become a new, minimally invasive option for treating patients with presbyopia, Dr Günther Grabner announced at this year's Alicante Refractiva International meeting.