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Glaucoma and Trabeculoplasty

Posted on byHTH华体会

青光眼不仅是一种眼科疾病，而且是导致视神经损伤的一组眼睛疾病，这会导致视力丧失。在大多数情况下，眼睛内部异常高压是造成这种损害的原因。

青光眼是失明的第二大主要原因，可能会损害您的视力，因此逐渐您可能会注意到疾病处于晚期阶段之前的视力丧失。最常见的青光眼类型是原发性开角青光眼，除了逐渐视力丧失外，没有明显的体征或症状。

Early diagnosis and treatment can minimize or prevent optic nerve damage and limit glaucoma-related vision loss. It’s important to get your eyes examined regularly, and make sure your eye doctor measures your intraocular pressure.

Laser trabeculoplasty uses a very focused beam of light to treat the drainage angle of the eye. This surgery makes it easier for fluid to flow out of the front part of the eye, decreasing pressure in the eye. There are two types of laser trabeculoplasty: Argon laser trabeculoplasty (ALT) uses a laser to open up the drainage angle of the eye. Selective laser trabeculoplasty (SLT) uses a lower-level laser to open the drainage angle of the eye.

For laser trabeculoplasty eye drops are put in the person’s eye before or after the procedure to decrease the amount of fluid in the eyes and prevent elevation in eye pressure immediately after laser treatment. A special microscope (slit lamp) and lens (goniolens) are then used to guide the laser beam to the canals (trabecular meshwork) where fluid drains from the eye. The doctor makes small burns in the trabecular meshwork. Some people feel a heat sensation in the eye during the laser surgery.

L. Jay Katz, MD, provided an update on the forthcoming randomized clinical trial comparing selective laser trabeculoplasty with topical medical therapy using prostaglandin analogues as initial monotherapy for glaucoma. According to Dr. Katz, he and his fellow researchers found the two treatment options to be similarly efficacious out to 1 year.

Glaucoma can affect any age group including newborns, infants, children and the elderly. According to statistics provided by the Glaucoma Research Foundation, over four million people in the US suffer from glaucoma, of which only 50{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} are aware of their condition. Glaucoma presents a greater public health concern than cataracts because the blindness caused by glaucoma is irreversible. Thus, early detection through comprehensive eye examinations is the key to protect against glaucoma damage.

At Laser Locators we carry the top name surgical and diagnostic ophthalmic equipment manufacturers you can trust, like Acon, Nidek, Lumenis and more for preforming all of your precise ophthalmic procedures. Contact us atwww.m.fundalarms.comor call 1-877-924-2020 and let one of our expert equipment locators help you today.

Getting the Most out of Three IOLs

Posted on byHTH华体会

“The aspheric design of this multifocal IOL enhances patients’ outcomes”, says Elizabeth A. Davis, MD. “There are a number of different IOLs to choose from to achieve the best outcome for patients today. Presbyopic correction lenses are now available and with good results. In many cases, surgeons prefer the Tecnis Multifocal IOL (Abbott Medical Optics Inc. [AMO]) based on their design and positive outcomes.”

In assessing any IOL, you must consider several factors: ease of implantation, predictability of refractive outcome, quality of vision, range of focus (spectacle independence), patients’ satisfaction, side effects, and long-term stability.

The Tecnis Multifocal IOL is based on an aspheric optic design meant to reduce the spherical aberration of an average cornea to zero. The Tecnis Multifocal has a full-diffractive posterior surface, which makes the diffractive optics pupil independent for optimal image quality at all distances under any lighting condition. The optic is made of acrylic and comes in both a one- and three-piece design. The frosted edge also minimizes edge glare.

镜头的经验

In a clinical trial, 94.6{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} of subjects implanted bilaterally with the lens reported being satisfied with their vision. Also at 1 year, 92.1{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} of the subjects had 20/25 or better distance UCVA and saw 20/32 or better at near with distance correction in place. More than 86{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} of subjects reported never wearing glasses, and slightly less than 90{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} were able to function comfortably without glasses at all distances (96.9{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} at near, 89.7{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} at intermediate, and 95.5{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} at distance).Only 1{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} always wore glasses.

All multifocal IOLs inherently reduce contrast and induce some amount of glare and halos, it is important to inform all patients that they should anticipate such side effects. Achieving optimal refractive outcomes with the Tecnis Multifocal IOL requires careful preoperative, intraoperative, and postoperative care. Preoperative preparation requires optimization of the ocular surface, a thorough examination to exclude patients with conditions that would preclude good outcomes, and precise biometry and IOL calculations.

To achieve the best results with the lens, it is important to choose appropriate candidates. Certainly, patients should desire reduced dependence on glasses and contact lenses. They should understand not only the risks of cataract surgery in general but the potential side effects of the lens, including reduced contrast, glare, and halos. Either patients should have minimal corneal astigmatism, or the surgeon should have an appropriate method to manage astigmatism. Accurate preoperative keratometric and biometric measurements are critical, and ocular surface disease must be aggressively treated.

Presbyopia-correcting IOLs are one of the most important transforming factors in the practice of anterior segment ophthalmology, and the AcrySof IQ Restor (Alcon Laboratories, Inc.) diffractive multifocal lens is the most commonly implanted presbyopia-correcting IOL in the United States. This technology offers patients visual rehabilitation for functional distance, reading, and intermediate vision. The surgeon’s selection of patients, meticulous attention to detail, and optimization of postoperative results are the keys to successful outcomes with this lens.

Recent advances in technology with laser cataract surgery may permit greater centration and consistent sizing of the capsulorhexis that could enhance refractive outcomes with presbyopia-correcting IOLs. Accurate biometry with the IOLMaster (Carl Zeiss Meditec, Inc.) or the Lenstar LS 900 (Haag-Streit AG) and control of astigmatism are also essential to maximizing outcomes. Because the lens constant must be carefully personalized to the individual surgeon, tracking postoperative results is imperative to refine surgical outcomes.

Patients are incredibly sensitive to small refractive errors with presbyopia-correcting IOLs, so surgeons must be willing and able to treat them. Astigmatism of greater than 0.50 D in a symptomatic patient requires surgical planning.

With attention to residual refractive error, the ocular surface,2 cystoid macular edema, and the posterior capsule, surgeons can improve appropriate patients’ quality of vision with the AcrySof IQ Restor IOL. The technology has enhanced the quality of life of many pseudophakic patients by reducing or eliminating their need for spectacles. As physicians’ comfort with multifocal lenses improves in the coming years, these IOLs should become more popular, both with cataract and refractive surgeons and their patients.

At Laser Locators we carry the top name surgical and diagnostic ophthalmic equipment manufacturers you can trust, like Acon, Nidek, Lumenis and more for preforming all of your precise ophthalmic procedures. Contact us atwww.m.fundalarms.comor call 1-877-924-2020 and let one of our expert equipment locators help you today.

全球眼科诊断设备市场预测

The global ophthalmic diagnostic equipment market was estimated at $715.4 million in 2010 and is forecast to grow at a Compound Annual Growth Rate (CAGR) of 4{0730eed075b45d9e50c00d6cd42dd08773e0164f29a45151808bf89051290974} to reach $947 million by 2017. The ophthalmic diagnostic equipment market includes perimeters, automatic and manual refractors, slit lamps, contact and non-contact tonometers, fundus cameras, automatic and manual lens meters, direct and indirect ophthalmoscopes, ultrasound equipment, corneal topography systems and other imaging systems. Technological innovations are stimulating growth in this otherwise saturated market dominated by traditional products. Recent advances in Optical Coherence Tomography (OCT) systems have contributed to the renewed market growth.

眼科诊断设备市场growing due to a significant increase in the incidence and prevalence of eye related disorders among the elderly population and the availability of reimbursement for eye care screening in the majority of developed economies. With the introduction of ophthalmic diagnostic equipment with advanced technologies there is an increased interest in the prevention of blindness caused by Diabetic Retinopathy (DR), glaucoma, and macular degeneration. Thus, people are increasingly opting for diagnostic measures to correct eye related disorders.

老年与某些问题有关，尤其是视觉能力的退化。到2025年，60岁及以上的人将构成35 {0730EED075B45D9E50C00D6CD42D0877777777777777777777777777773E0164F29A4515151808BF89051290974}。因此，随着老年人口的增加，对与眼睛疾病有关的产品的需求将增加。此外，由于这些市场不饱和，亚洲和南美洲的发展地区将提供增长机会。全球人口的一半以上是亚洲，印度和中国的占50 {0730EED075B45D9E50C00D6CD42D087773E0164F29A45151515151808BF89051290974}。这为眼科诊断设备的制造商提供了重要的市场机会。

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New study Offers Hope for More Effective Treatment of Myopia

休斯顿大学（UH）的验光师的研究支持了对试图减缓儿童近视进展的光学处理的继续研究。

Conducted by UH College of Optometry assistant professor David Berntsen and his colleagues from The Ohio State University, the study compared the effects of wearing and then not wearing progressive addition lenses, better known as no-line bifocals, in children who are nearsighted. With funding by a National Institutes of Health National Eye Institute training grant and support from Essilor of America Inc. and the American Optometric Foundation Ezell Fellowship program, the study examined 85 children from 6-11 years old over the course of two years. The results were published in Investigative Ophthalmology and Visual Science, one of the most widely read journals in the field.

选择根据他们的眼睛对齐,所以他们的racy of focusing on near objects, the myopic children were fitted with either normal single-vision lenses or no-line bifocals to correct their nearsightedness. In addition to observing and testing the children, the doctors obtained feedback from parents and guardians of both the children’s outdoor activities and near-work tasks, such as reading and computer use.

先前的研究表明，在阅读书籍或其他近工作时不准确地专注的近视儿童可能会从戴上无线双焦点眼镜中受益，而不是更准确地专注的近视儿童。伯恩森（Berntsen）的研究发现，与那些戴单视镜的人相比，穿着双焦点的儿童的近视进展很小但具有统计学意义，近视进展放缓。然而，伯恩森断言，结果并不暗示儿童仅仅是为了减慢近视的进展而安装无线双焦点镜头。

“While the small effect found in the group of children wearing bifocal spectacles does not warrant a change in clinical practice, we found the beneficial effect was still present for at least one year after children stopped wearing no-line bifocal lenses,” Berntsen said. “This is promising if other optical lens designs can be developed that do an even better job of slowing how fast myopia increases in children.”

By understanding why different types of lenses result in the slowing of myopia progression, Berntsen says researchers will be better able to design lenses that may be more effective in slowing the increase of nearsightedness in children.

“Single-vision lenses are normally prescribed when a child gets a pair of glasses, but glasses with progressive addition lenses were shown to slightly reduce myopic progression in our study,” Berntsen said. “For any treatment that reduces myopia progression in children to be useful, the effect of the spectacles or contact lenses must persist after children stop wearing them. The fact that the small treatment effect from our study was still present one year after discontinuing the treatment is promising. The results suggest that if newer optical designs currently being investigated do a better job of slowing myopia progression, the effects may be expected to persist and decrease how nearsighted the child ultimately becomes.”

这项研究的一个重要目标是帮助他们提高对儿童近视进展背后的机制的理解，以及为什么无线双焦点会导致其进展的这种略有减少。伯恩森说，研究结果和其他研究的证据表明，专门设计用于改变眼睛外周视觉模糊的镜头可能能够减慢近视度的增加。

伯恩森说：“有支持继续调查专门设计的新镜头，以改变眼睛背面的模糊轮廓，以减少儿童近视的增加。”“还有进一步的研究要做，但是我们的工作是发现减慢近视发展所需的方法的重要一步。”

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Relief for Chronic Dry Eyes

Posted on byHTH华体会

Dry Eye Syndrome occurs when the normal flow of tears over the eyes is interrupted, or the tear film is abnormal and there are insufficient tears to lubricate the eye. Dry eye syndrome is a chronic condition and can get worse with age. You can relieve the symptoms, but not cure the original cause.

Artificial Tears

人造撕裂润滑剂或在某些情况下阻塞撕裂管道会集中有限的泪水。人造眼泪是可以在柜台上购买的眼滴，以增加眼泪的含量并改善病情的症状。有很多类型的可用类型 - 从眼睛滴到凝胶配方。凝胶配方会导致视力模糊，但减轻症状的缓解可能会持续更长的时间。无防腐剂的滴眼剂配方很受欢迎，因为它们具有较少的添加剂，并且可能引起刺激性较小，尤其是在定期使用眼滴的情况下。

Anti-inflammatory Eye Drops

Restasis eye drops are an ocular cyclosporine formulation that helps the eye increase tear production. This medication is only available by a prescription from an eye doctor. In more severe cases, some doctors may prescribe a short course of steroid eye drops to treat dry eye.

点子阻塞

An eye doctor can also insert small silicone plugs into the drainage channels in the upper and lower eyelids to prevent the tears that are present in the eye from draining out of the eye. These plugs are temporary and can fall out over time. A minor surgical procedure can also be done in the office to permanently close the tear ducts.

曲lis

一个称为lacricert的小插入物，充满药物（羟丙基纤维素）也可以插入撕裂管中。白天不断从插入物中释放出眼药，并改善了眼睛的撕裂膜。插入物每天更换，并由患者在家中应用。必须通过插入来注意防止眼睛受伤。

您的眼科医生可以确定您特定情况的最佳治疗方法。有了这些简单安全的选择，您不必再患有慢性干眼睛了。

At Laser Locators we carry the top name surgical and diagnostic ophthalmic equipment manufacturers you can trust, like Acon, Nidek, Lumenis and more for preforming all of your precise ophthalmic procedures. Contact us atwww.m.fundalarms.comor call 1-877-924-2020 and let one of our expert equipment locators help you today.