Information on IOP fluctuation holds clues for treatment
October 15th 2007Recent research is yielding interesting information about IOP fluctuation, its role as a glaucoma progression risk factor, and how it is affected by treatment. The findings, expected to have implications for patient management, have focused attention on the ability of treatments to suppress the diurnal IOP curve.
Neural cell transplant may improve vision for RP, AMD patients
October 15th 2007Results so far in a phase II clinical trial indicate that a technique to implant sheets of immature neural retinal cells and retinal pigment epithelium together can improve vision of patients with retinitis pigmentosa or age-related macular degeneration.
Strategic plan helps retina practice move forward
October 15th 2007All too often, practices look to alternative revenue centers that involve additional risk before looking at the no-risk option of improving current operations to put increased dollars on the bottom line. Read how one retina practice, with assistance from experienced consultants, devised a strategic plan that improved current operations and contributed to a very significant increase in revenue.
Filtering device decreases aspiration rate in two phaco systems
October 15th 2007A filtering device (Cruise Control, STAAR Surgical Co.) placed between the phacoemulsification handpiece and aspiration tubing increases the stability of the anterior chamber during phaco because it decreases the post-occlusion aspiration flow rate in two venturi systems (Legacy 20000, Alcon Laboratories; Millennium venturi, Bausch & Lomb).
How to conquer your first solo phaco
October 15th 2007In every phacoemulsification procedure, the critical factors remain the common goals: the care and respect bestowed on the patient and the commitment to obtaining the best possible outcome. There is no place for cynical, business-as-usual attitudes (which are found in some operating rooms) in today's environment of refractive cataract surgery and presbyopia-correcting IOL implants. An expert offers 10 steps to help post-residency ophthalmologists conquer their first solo phacoemulsification procedures.
Refractive surgery certification varies between, within residency programs
October 15th 2007Respondents to a survey of U.S. ophthalmology residency program directors showed only 58% had one or more residents certified in laser refractive surgery in their most recent graduating class. The number of faculty members performing laser refractive surgery, the number of lecture hours on this subject, and the presence of a cornea fellow appeared to influence certification.
LRIs are simple, effective approach to improve results after IOL insertion
October 15th 2007Limbal relaxing incisions are making a comeback in an era of high expectations for cataract surgery outcomes and increasingly sophisticated IOLs. The procedure for performing this type of incision is relatively simple and can be performed by experienced surgeons at the slit lamp in the office.
P4P: Between the devil and the deep blue sea?
October 1st 2007On one hand, the pay-for-performance issue has large employers, insurers, and Congress contending that the delivery of substandard medical care by physicians is hurting patient care and costing the health-care system huge sums of money. On the other hand, Congress and insurers are determined to reward physicians for providing high-quality health care and at the same time penalize them for delivering lower-quality health care. Ophthalmologists must participate in the development of standards to ensure good results. Toward that end, physician groups have devised eight ophthalmology-related quality measures, which are detailed here.
β1 and β3 integrins use two distinct pathways to regulate CLAN formation
October 1st 2007Take-home message: New discoveries about the signaling pathways regulating cross-linked actin network (CLAN) formation could in the future lead to new therapeutic approaches for steroid-induced glaucoma. CLANs are found in glaucomatous trabecular meshwork cells as well as steroid-treated cell and eye organ cultures, thus the discovery of two distinct signaling pathways is a preliminary step toward targeting of specific proteins associated with steroid-inducedglaucoma.
Replicated loci linked to primary open-angle glaucoma
October 1st 2007Researchers have completed a genome scan of 128 families with primary open-angle glaucoma (POAG) and replicated loci on chromosomes 15 and 2. Nearly one-third of the families are of African-American or Ghanaian descent, a group disproportionately affected by POAG.
Role of TGF-β2 in open-angle glaucoma becoming clear
October 1st 2007Transforming growth factor beta (TGF-β2) increases outflow resistance in human anterior segments. Recent analysis has identified several candidate molecules and pathways by which elevated levels of TGF-b2 may trigger changes in outflow resistance.
Several factors key for multifocal IOL success
October 1st 2007Achieving high patient satisfaction rates with newer multifocal IOLs requires attention to a variety of details preoperatively, intraoperatively, and postoperatively. R. Bruce Wallace, MD, and Samuel Masket, MD, review important considerations for maximizing outcomes.
Multimodal strategies maximize success with multifocal IOL implantation
October 1st 2007Rigorous preoperative evaluation and counseling, meticulous surgery, and thorough postoperative counseling are all critical elements for optimizing outcomes with presbyopia-correcting lenticular surgery. One surgeon shares his four-step approach to excellent functional results and high patient satisfaction.
Little difference in postoperative flare between two phaco technologies on day 1
October 1st 2007No substantial differences have been seen in the amount of postoperative flare present on day 1 following cataract surgery using either micro-coaxial phacoemulsification with a torsional handpiece or micropulse phacoemulsification.
Patients with uveitis and cataract present challenges
October 1st 2007Patients with uveitis who require cataract surgery present challenges to the surgeon at every stage of care. The uveitis must be controlled carefully preoperatively, small pupils are especially problematic during surgery, and inflammation must be controlled postoperatively.
Bilateral surgery shows promise for Marcus-Gunn jaw winking synkinesis
October 1st 2007Bilateral frontalis suspension combined with levator transection and transposition appears to be a better technique for treatment of Marcus-Gunn jaw winking synkinesis, suggest results of a large case series reviewed for this rare condition.
Ablation with bipolar wet-field diathermy safe, effective for low-flow vascular lesions of orbit
October 1st 2007Ablation with bipolar wet-field diathermy is effective and safe as a management approach for low-flow vascular lesions, which typically are difficult to treat. Also, it is a less invasive strategy than standard surgery. One surgeon shares his experience.
Supranuclear gaze disturbances can be confusing
October 1st 2007Supranuclear gaze palsy should be suspected in patients with bilateral and symmetric vertical or horizontal gaze difficulty. Use of specific maneuvers to bypass the supranuclear input to the ocular motor nuclei can help to establish a supranuclear localization to the problem and direct neuroimaging to the supranuclear pathways in the brain and brainstem.
Solid-state laser can achieve excellent results for high, mixed astigmatism
October 1st 2007An analysis of results achieved from performing LASIK with a 213-nm solid-state refractive laser (Pulzar Z1, CustomVis) in 10 eyes with high and mixed astigmatism (mean astigmatism, –5.2 D) demonstrate its safety, predictability, and efficacy. Uncorrected visual acuity after a minimum of 8 weeks' follow-up was 20/30 or better in 100% of eyes.
Customized IOL implantation may be worthwhile
October 1st 2007Customized IOL implantation has become a topic of great interest over the past year. The combined implantation of two different multifocal lenses, an apodized diffractive lens (AcrySof ReSTOR, Alcon Laboratories) and a refractive lens (ReZoom, Advanced Medical Optics), has provided patients with good results in near, intermediate, and distance vision because the two IOLs complement one another. In a survey of patients in whom the diffractive lens had been implanted bilaterally and patients in whom one of each IOL had been implanted, the combination approach received higher marks compared with bilateral diffractive lens implantation.
Artificial cornea holds promise for high-risk eyes
October 1st 2007Several situations are associated with a high risk of failure after donor corneal transplantation. Encouraging results have been seen with a particular keratoprosthesis (Boston KPro, Massachusetts Eye and Ear Infirmary) as an alternative in carefully selected eyes.