Century City Eye Doctor

- Meet your person eye doctor, Barry Seibel MD! Century City eye doctorLocate an eye doctor who provides comprehensive evaluation and vision therapy. Dr. Barry Seibel is an eye doctor specializing in corrective laser eye surgery with services in Century City. There are two types of eye doctors. Both types of eye doctors examine and prescribe glasses, diagnose and treat eye disease, and can evaluate how well a person uses the eyes together. This Century City eye doctor directory can help you locate eye care professionals. The emphasis of ophthalmology is eye disease and eye surgery. Eyesight is the sharpness of the image seen by the eye. A good eye doctor in Century City can test many aspects of function and how the eyes work together. The established allowable norm used by many eye doctors is two diopters and one eye may normally aim lower at reading distance than the other eye. The eyes can keep good alignment only for a short time and then must be rested. Actually, many are resting their eyes. These Century City doctors patching one eye for up to forty-eight hours. Locate an eye doctor who has the competence. These Century City eye doctors have passed extensive written and oral examinations. If there is no eye doctor listed in Century City. Eye doctor Surgery Century City Subjects include: corrective eye doctoreye doctor eye surgeon laser eye center laser eye correction laser eye correction surgery laser eye doctor laser eye surgeon laser eye surgery laser eye surgery laser vision laser vision correction laser vision surgery doctor eye center eye doctor eye surgeon eye surgery laser eye surgery surgeon surgery surgery cost refractive vision correction vision correction doctor vision correction surgeon vision correction surgery vision surgery wavefront Dr. Barry Seibel Seibel Vision Surgery Century City Los Angeles

EYE CONDITIONS Astigmatism Blepharitis Cataracts Diabetic Retinopathy Dry eye Flashes & Floaters Glaucoma Hyperopia Macular Degeneration Myopia Presbyopia : eye doctor Century City Eye Conditions Astigmatism (ah-STIG-ma-tizem) Introduction How it works Treatment Introduction Astigmatism occurs when the cornea is shaped irregularly - like a football or a spoon as compared to a ball or sphere. The visual effect is similar to what you may have seen in a "funny mirror" at an amusement park - the image is stretched, usually horizontally or vertically, although oblique (angular) distortions also occur. Back to top How it works Your eye is a dual lens system, one external and one internal. The external lens of the eye is the cornea. Normally, the cornea is shaped like a somewhat flattened ball, with its meridian along the horizontal. The internal lens, called the crystalline lens, is convex on both sides (front and back), like this: (). This lens is also somewhat flattened, but its meridian is vertical. In a perfect system, the cornea and lens each contain the same amount of curvature, but are opposite in orientation, thereby effectively canceling each other. Because of this, the rays of light can flow in even, parallel lines. perfect vision astigmatic vision Sometimes, one of these two lenses may have a radius of curvature that is too steep in one meridian, and therefore too flat in the corresponding perpendicular meridian. Generally, this astigmatic optical error is caused when the cornea has excessive flattening (or steepening) in one meridian, rather than the internal lens. Then, the rays of light are distorted. There are various types of astigmatism including regular, mixed and irregular astigmatism, also referred to as higher and lower aberrations, depending upon the degree of steepness and flatness involved and in what combinations. As the relative amount of error increases, so does the perceived blur and eye strain. Small degrees of astigmatism do not significantly impact the visual system, as there is a built-in compensatory mechanism. Back to top Treatment Astigmatism can occur alone as the sole optical error, and can be corrected by LASIK, or a lens (eyeglasses or contact lens) that is the astigmatically warped opposite to that of the eye. Prescriptions having three parts indicate the presence of astigmatism and look something like this: -3.00 +1.25 x 180 The first part indicates the main spherical correction (either myopia or hyperopia), while parts two and three show the extent and location of your astigmatism. · Lenses An astigmatic lens is called a toric or cylinder lens. Toric is the physical construction of the lens, while astigmatic is the optical effect. Sometimes these terms are used interchangeably. Astigmatism often occurs combined with myopia or hyperopia. The resulting lens is called a compound lens, incorporating the spherical power to neutralize the near or farsighted optics, and cylindrical or toric to neutralize the astigmatic error. · Laser correction for astigmatism At Seibel Vision Surgery, we are really excited. There now exists the most amazing breakthrough diagnostic tool for measuring astigmatism and guiding LASIK. See Wavefront Mapping for more information! Back to top 310.444.1134 11620 Wilshire Boulevard, Suite 711 Los Angeles, California 90025 Contact Us - Cataract Surgery - LASIK - Glaucoma   Copyright © 2000 - 2008 Barry S. Seibel, M.D., Inc. All Rights Reserved. EDUCATION LIBRARY Introduction 3-D Eye Library Cataract Surgery Disclaimer Eye Conditions Eye Exam Eye Procedures LASIK "All Laser" Normal Vision Prescriptions