Posterior corneal astigmatism in refractive lens exchange surgery
نویسندگان
چکیده
منابع مشابه
Influence of posterior corneal astigmatism on postoperative refractive astigmatism in pseudophakic eyes after cataract surgery
BACKGROUND To examine the influence of posterior corneal astigmatism on postoperative refractive astigmatism in pseudophakic eyes after cataract surgery. METHODS The study enrolled 64 pseudophakic eyes of 50 patients (71.8 ± 9.9 years old, mean ± standard deviation) who had undergone phacoemulsification with non-toric IOL implantation. Refractive astigmatism was measured using an auto ref-ker...
متن کاملCorneal or lens refractive surgery?
E xcimer lasers are used today practically all over the world to treat refractive errors. This provides us with a wealth of data and findings that must be analyzed, presented, interpreted, and discussed. One major finding is already certain: the absolute and indisputable necessity of refractive surgery. Even those who are skeptical about refrac-tive surgery must accept this. Patients simply do ...
متن کاملPosterior corneal astigmatism.
In the optical system of the human eye, total refractive power consists mainly of corneal and lenticular components. Approximately two-thirds of the eye's converging power is at the air–cornea (tear film) interface; one-third is in the lens. Total corneal power is determined by corneal anterior and posterior curvature, corneal thickness, and the corneal refractive indices. Traditionally, anteri...
متن کاملAnterior and Posterior Corneal Astigmatism after Refractive Lenticule Extraction for Myopic Astigmatism
Purpose. To assess the amount and the axis orientation of anterior and posterior corneal astigmatism after refractive lenticule extraction (ReLEx) for myopic astigmatism. Methods. We retrospectively examined 53 eyes of 53 consecutive patients (mean age ± standard deviation, 33.2 ± 6.5 years) undergoing ReLEx to correct myopic astigmatism (manifest cylinder = 0.5 diopters (D)). Power vector anal...
متن کاملContribution of posterior corneal astigmatism to total corneal astigmatism.
PURPOSE To determine the contribution of posterior corneal astigmatism to total corneal astigmatism and the error in estimating total corneal astigmatism from anterior corneal measurements only using a dual-Scheimpflug analyzer. SETTING Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, USA. DESIGN Case series. METHODS Total corneal astigmatism was calculated using ray trac...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Ophthalmologica
سال: 2016
ISSN: 1755-375X
DOI: 10.1111/aos.12965