12/15/2023 0 Comments Cost of itrace abberometerOf 146 eyes (73 patients) who refrained from surgery due to a negative MCLT, 71 eyes (48.6%) had both angles small (<0.5mm). In the 1-year follow-up, UCVA improved by 0.68 logMAR (SD 0.51 p<0.001) from baseline. Eyes with both small angle alpha and kappa sizes improved by 0.78 logMAR (SD 0.56), as did eyes with high (≥0.5mm) angle sizes (0.82 logMAR (SD 0.53). UCVA of eyes ( n=24) with high alpha but low kappa sizes improved less (−0.31 logMAR (SD 0.13 p=0.019)). Conclusionįour out of five patients with a positive MCLT also had correspondingly small angle values. One-half of patients with low preoperative angle values refrained from surgery due to a negative MCLT result. One-year visual acuity improvement was substantial and independent from angle sizes. Multifocal intraocular lenses (IOL) are increasingly used in the management of presbyopia treatment. Most patients achieve an improvement not only in distance but also near visual acuity leading to higher spectacle independence and patient’s quality of life. Assessment and patient selection for multifocal IOL implantation is a clinical challenge. Some patients complain about disturbing side effects such as glare and halo phenomena. Research into causes of a poor visual outcome identified a large deviation between the visual axis, pupillary axis, and the optical center of the multifocal IOL as important clinical parameters. Extreme values of these parameters lead to higher order aberrations resulting in decreased visual quality. As a result, ophthalmologists called for an objective preoperative measurement to allow the identification of patients with an increased risk for postoperative glare and halo. Recently, Karhanova and colleagues proposed measuring the angle kappa and angle alpha in preoperative examinations. Preoperative consultations ask for a careful analysis of patient’s lifestyle and expectation as well as thorough examination.įrom the analysis of a smaller sample, Fu and colleagues suggested to select patients for multifocal IOL implantation if they presented with an angle alpha or angle kappa distance smaller than 0.5mm. As an alternative or add-on examination, preoperative multifocal contact lens test as an indicator for tolerance of multifocal IOL has been proposed. While some anecdotal evidence suggested that a preoperative multifocal contact lens test (MCLT) could be useful to support patients’ decision-making for multifocal IOL surgery, little is known about the relationship between a positive MCLT and the corresponding alpha or kappa angle values. From a theoretical viewpoint, the concordance between the two approaches should be rather high, as patients with large angle alpha and angle kappa would not tolerate the test very well, while patients with normal angle values would. However, the extent to which these theoretical considerations translate into real-world practice is unclear. Take the next step and call (978) 630-7047 or click below to request a evaluation with our experienced, qualified experts.Therefore, this study assessed the distribution of preoperative objective angle alpha and angle kappa measurements of patients deciding to undergo multifocal refractive lens surgery based on a positive MCLT. Your doctor will inform you of the out-of-pocket cost if we believe the iTrace data is important to make the best decisions for your particular circumstance and unique vision needs. If you have a cataract, your doctor will use the iTrace information to help select the best intra-ocular lens (IOL) for your eye and to plan surgery, including advanced the Lifestyle Lenses below that not only eliminate cataracts, but also provide you with increased freedom from glasses and contacts! Is iTrace testing covered by my insurance?Īs a new technology, it is likely that iTrace testing will not be covered by your insurance. Most importantly, the iTrace gives your doctor information that has not been available through other tests, and this will allow us to customize your treatment options to give you the best possible vision. If you are having night vision difficulty, your doctor can analyze how your eyes see in light and dark conditions and possibly prescribe a different pair of glasses for nighttime. If you are in your 40s or 50s and not seeing as clearly as you did when you were younger, your doctor can know which vision component of your eye is causing the change. For example, if you are interested in refractive surgery or LASIK, your doctor can determine if you are a good candidate. The iTrace analysis can be used for solving many vision problems. How will my doctor use the information from my iTrace exam? Is there anything that can be done to improve my vision?.Why am I having vision problems even after cataract surgery?.
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