Retinal oxygen levels measurement allowed by hyperspectral camera images
December 1st 2008A new hyperspectral camera can measure the oxygen level of the retinal tissues non-invasively. This may allow detection of retinal changes in patients with diabetes, and other retinal vascular diseases, before structural changes in the capillaries occur.
Glaucoma 20-year incidence may be estimated by mathematical model
December 1st 2008Using a mathematical model, investigators have estimated that people with ocular hypertension have a nearly 30% risk of developing glaucoma over 20 years, adjusting for the competing risk of mortality. Among ocular hypertensive patients aged more than 70 years, however, a 90% risk of mortality exists over that 20-year period, suggesting that preventive treatment would have little benefit.
Glaucoma progression: Monitor disease with multi-step process
December 1st 2008As understanding of the multifaceted nature of glaucoma continues to grow, the steps practitioners need to take to monitor progression of the disease evolve. Key steps to take to monitor progression include confirming with repeat testing any visual function loss, remembering that structural measurements have variability, and using structural and functional testing together.
Cataract 2008: A year in review
December 1st 2008Cataract surgery is a modern success story because of the advances in techniques and technology that have been made over the years. Excellent outcomes are becoming routine, and the field only continues to progress, thanks to a steady stream of innovations. Three cataract surgeons share their thoughts on some of the most noteworthy innovations and trends of 2008 and beyond.
Analysis: Did you see this coming?
December 1st 2008We're to the point that medical care for our children is a discretionary item, less of a priority than digital cable. Blurry vision from a cataract is something that can be dealt with next year or whenever the economy sorts itself out. While it may be impossible to peer into the future, it increasingly appears that accessing medical care may not be the recession-proof priority for Americans that it has been in the past.
Clinical trials: Treatment results are just the tip of the iceberg
December 1st 2008Clinical trials provide far more information than just the safety and efficacy of a treatment. Information about the natural course and the risk factors of the disease can be gathered. Of equal importance is the collaboration of clinical investigators as they develop and carry out protocols facilitates incorporation of new ideas into medical practice.
Ophthalmologists lauded at the American Society of Retina Specialists meeting
December 1st 2008Neil M. Bressler, MD, Susan B. Bressler, MD, Alexander J. "Sandy" Brucker, MD, and Stanley Chang, MD, were honored for their work in the subspecialty of retina Oct. 12 at the annual meeting of the American Society of Retina Specialists (ASRS).
Refractive procedures continue to be refined by trends
December 1st 2008Collagen cross-linking, the newest advancement in the refractive arena, possibly will stabilize keratoconic and ectatic corneas. LASIK, an area that always is improving, has seen changes in flap sizes and lasers. Knowledge of corneal biomechanics also is progressing to provide more information than ever before with new instrumentation. The phakic IOL market has expanded considerably, catering to those with high myopia. IOL options for pseudophakia also are expanding, and refractive lens exchange remains popular for hyperopia. In addition, questions of patient satisfaction postLASIK are being answered by an FDA task force.
New drug application filed for bepotastine ophthalmic solution
November 17th 2008ISTA Pharmaceuticals has filed a new drug application (NDA) with the FDA for bepotastine ophthalmic solution (Bepreve). If approved, the solution would be used as an eye drop treatment for ocular itching associated with allergic conjunctivitis.
Strong attendance seen at AAO and SOE joint meeting
November 17th 2008The American Academy of Ophthalmology (AAO) 2008 joint meeting with the European Society of Ophthalmology, held in Atlanta Nov. 8 to 11, featured strong attendance numbers. Preliminary figures for attendance at the meeting were approximately 22,000, and attendance at the Subspecialty Day events Nov. 7 and 8 totaled more than 6,200.
Beyond intelligence, look for potential employees with 'wanna' when hiring
November 15th 2008Once you get employees to realize that their success or failure ultimately is up to them, the pressure is off you as a manager. The pressure is squarely in the place it needs to be: on the employees. Your only job then becomes augmenting their growth with the tools they need to be the hardest-working technicians you ever will have.
CI helped by weekly office-based vision therapy
November 15th 2008Children who have convergence insufficiency (CI) will respond better to weekly treatment sessions with a trained vision therapist than to a strictly home-based eye exercise program, according to a study released by the National Institutes of Health (NIH).
How much space does your optical dispensary need?
November 15th 2008Determining the optimal size for an optical dispensary will allow the practice to obtain the highest return on investment and return on assets. The optimal size can be calculated in one of two ways. The first is to determine the number of dollars each square foot of space can generate. The second method is to calculate the percentage of total practice revenues the dispensary represents. Whichever method is used, remember the general rule for dispensary size: "bigger is better."
Easy ways to create eye-catching displays
November 15th 2008Visual merchandising is the art of displaying merchandise to encourage sales. Dispensing ophthalmology practices can create eye-catching displays by following some simple rules. Grouping frames by price point and brand helps to organize options for the customer. Displays can highlight individual brands through repetition, a pyramid design, using odd, rather than even numbers of items, considering the texture of background materials, and more.
Electromagnetic deformable mirror assists in retinal diagnostics
November 15th 2008The novel technology found at the heart of an adaptive optics flood illumination fundus camera (AOFIFC, INOVEO)-an electromagnetic deformable mirror (Mirao 52-e, Imagine Eyes)-is designed to facilitate the acquisition of even higher resolution images than those captured by optical coherence tomography systems.
Diabetic macular edema can be objectively detected by retinal imaging
November 15th 2008Both subjective and objective evaluation of diabetic macular edema (DME) can produce good results. In a recent study, the initial results of objective evaluation with retinal imaging technology (Heidelberg Retina Tomograph Retina Module, Heidelberg Engineering) showed good sensitivity and moderate specificity, whereas subjective evaluation by two expert assessors produced high sensitivity and specificity. Nevertheless, with optimization, the results of the two forms of evaluation became more evenly matched, suggesting that the retinal imaging technology can aid clinicians in detecting DME.
Intravitreal ranibizumab therapy safe, well tolerated, study shows
November 15th 20081-year results from the HORIZON open-label extension study of ranibizumab (Lucentis, Genentech) for the treatment of exudative age-related macular degeneration show that treatment beyond 2 years relatively is safe and well tolerated, but previously treated patients who received ranibizumab monthly for 2 years may be susceptible to loss of vision with less-frequent dosing during the third year of treatment.