Statin use appears not to protect against CNV or GA in AMD patients
October 1st 2007Statin use does not appear to have a significant protective effect against choroidal neovascularization or geographic atrophy in patients with age-related macular degeneration, according to a recent analysis of data collected during the Complications of Age-related Macular Degeneration Prevention Trial.
Fundus lesions of advanced AMD decrease visual acuity within 5 years
October 1st 2007Vision loss is associated with increasing scores on the simplified severity scale for age-related macular degeneration (AMD) in the Age-Related Eye Disease Study. A correlation also has been found between vision loss and the four fundus lesions associated with advanced AMD. These findings suggest that the fundus lesions could be used as surrogates in prevention studies for development of advanced AMD.
Diabetic retinopathy on the rise in Pakistan
October 1st 2007Reliable measurement of the distance between a phakic refractive IOL and the crystalline lens is important in detecting direct contact, a risk factor for induced cataract. In a recent study using optical coherence tomography, investigators found that the phakic refractive IOL and anterior lens surface moved forward in all cases during accommodation; mechanical contact was infrequent but was found in all instances in which opacification developed.
Accommodating IOL enhances near vision, according to phase III trial
September 15th 2007Interim results from a phase III study evaluating an accommodating IOL (Tetraflex [KH-3500], Lenstec) for pseudophakic correction after cataract surgery demonstrate that it provides good near and distance uncorrected visual acuity outcomes along with a favorable safety profile.
Can't live with them, can't live without them
September 15th 2007There are three types of employees: climbers, quitters, and some who camp at mediocrity. Practice administrators who get to know their employees and what makes them tick will contribute to the success of the practice. It may be a matter of uncovering his or her true talents and finding the right place for that person within the practice.
Laser enhancement important adjunct to multifocal IOL
September 15th 2007The bar for refractive and vision outcomes has been raised in patients in whom multifocal IOLs have been implanted. Laser vision correction, therefore, has become an important enhancement tool. Multifocal IOL patients should be managed the same as laser vision refractive surgery patients, but additional issues should be considered.
Design differences of aspheric IOLs affect image quality
September 15th 2007When the performance of four different aspheric IOLs in scotopic light conditions was evaluated using a computer model, the results favored one three-piece lens (Tecnis, Advanced Medical Optics) for providing the best compromise between spherical and chromatic aberrations and depth of focus.
New potent difluprednate advances through phase III studies
September 15th 2007The potent corticosteroid difluprednate is being developed as an emulsion for topical use. Phase III clinical trials of the treatment of postoperative inflammation have been completed and a phase III study of anterior uveitis treatment is under way. Positive efficacy and safety results were achieved in phase III clinical trials in Japan.
Caution urged for nepafenac use for pain control after surface ablation procedures
September 15th 2007A prospective, randomized, contralateral eye-controlled study demonstrated that eyes treated with nepafenac 0.1% (Nevanac, Alcon Laboratories) for 4 to 5 days after PRK had significantly greater haze than eyes treated with ketorolac tromethamine 0.4% (Acular LS, Allergan). The study findings and similar experience of other surgeons raise questions about the safety of nepafenac use after surface ablation procedures.
Ophthalmic NSAIDs vary in amount, time needed to reduce inflammation
September 15th 2007Topical ophthalmic nonsteroidal anti-inflammatory drugs vary considerably in characteristics such as the number of days and the number of drops needed to reach the therapeutic endpoint. Although all are effective, doctors should learn to compare the NSAIDs based on their potency and penetration to make the best decisions for their patients.
Topical moxifloxacin efficacious in preventing endophthalmitis after intravitreal injection
September 15th 2007Results of testing in an animal model demonstrated that topical moxifloxacin 0.5% ophthalmic solution (Vigamox, Alcon Laboratories) provided effective prophylaxis against endophthalmitis following an intravitreal injection.
Nepafenac facilitates re-epithelialization and early pain reduction following PRK
September 15th 2007Nepafenac (Nevanac, Alcon Laboratories) administered three times daily after bilateral PRK, facilitated corneal healing that was comparable to ketorolac (Acular LS, Allergan) in a recently reported prospective, randomized, and double-masked study. In addition, pain relief occurred earlier in patients randomly assigned to receive nepafenac compared with patients who received ketorolac or bromfenac (Xibrom, ISTA Pharmaceuticals).
Malignant lesions of conjunctiva require appropriate management
September 15th 2007Appropriate management of malignant lesions of the conjunctiva requires detailed knowledge of the appearance and nature of the lesions. Here's how to recognize and treat the most common malignant lesions seen by ophthalmologists.
Study: older children more likely to develop strabismus, amblyopia
September 15th 2007No difference exists regarding the prevalence of amblyopia and strabismus in a population of Hispanic and African-American preschool children, and the prevalence of the two pathologies increases with age, according to findings of the Multi-Ethnic Pediatric Eye Disease Study.
DSEK upsurge likely due to high satisfaction, good visual results
September 15th 2007Descemet's stripping endothelial keratoplasty (DSEK) has changed the landscape in cornea surgery. Compared with those who have undergone penetrating keratoplasty, DSEK patients have an easier time postoperatively with rapid visual recovery. DSEK also affects decision-making about cataract extraction, and data appear to indicate that in most cases cataracts should be removed before DSEK or as a combined procedure.
Travoprost with less toxic preservative causes less ocular surface toxicity
September 1st 2007In a pooled dataset, the fixed combination of 0.2% brimonidine/0.5% timolol (Combigan, Allergan) showed greater reductions in IOP and a better tolerability profile than another combination agent, 2.0% dorzolamide/0.5% timolol (Cosopt, Merck). The twin advantages of greater pressure lowering and greater tolerability could help guide clinicians in choosing which therapy to choose when the initial treatment has not resulted in adequate improvement.