Doctor insights on:
Can You Astigmatism
Not commonly: These are the three basic errors of refraction along with presbyopia which is the farsightedness of older folk. Astigmatism, an ovalness of the eye can coexist with all of these. Near and farsighted are opposites and do not coexist although presbyopia is a type of farsighted which then can exist with underlying myopia. Ask your ophthalmologist to tell you which of these you have. ...Read more
Focus problems: Focusing or far away objects requires a different combination of eye lens, cornea and retinal distance from the lens than focusing on nearby objects. The focusing system can go awry in both the far away combinations and/or the nearby combinations usually because of problems with the shape of the lens for each type of focus. ...Read more
Yes: Pinquecula is very common. If considering tiny pinqueculi then almost everyone over age 25 has some. It usually does not interfere with lasik result. If the pinquecula is large and inflammed it is better treated first so the lasik suction ring can seat well. Consult your ophthalmologist. ...Read moreSee 1 more doctor answer
I do not: Think such lenses are necessary.Get a more detailed answer ›
Yes.: Nystagmus refers to difficulty with maintaing directed gaze of vision, and can occur either when looking in certain positions (such as far to the side) or when looking straight ahead. It does not necessarily relate to refractive errors, so wearing corrective lenses (glasses or contacts) is acceptable. ...Read more
Can you tell me if you switch from glasses(prism lens) to contacts(different prescription) will that cause unusual discomfort?
Bad idea: LASIK will make the dry eye worse temporarily while your eye is trying to heal from the surgery. That can cause problems. Best to patiently treat the dry eye with your surgeon as much as possible before the surgery. Your eye surgeon will be able to advise you when your eye is in suitable condition for LASIK. ...Read more
Possibly: See your eye doctor to discuss this option. The thickness of your glasses typically depends on the strength of the prescription and type of glass material used and does not have to do with a lazy eye. Sometimes, if you have prism in your glasses it can make them thicker. There are thinner, lighter high index lenses that may help you. ...Read more
Depends: The eye (like a camera) has many parts, blindness can result from disease to any of the parts. Some parts can be replaced such as the cornea (with a cornea transplant) or a cataract with a lens implant, so blindness due to corneal or lens conditions can be reversible. When there is severe damage to the retina or optic nerve causing blindness, reversing becomes more difficult or impossible. ...Read moreSee 1 more doctor answer
What's the difference between myopia and astigmatism. Can you have astigmatism without having myopia?
Two separates: Myopia is very near vision and need for glasses beyond a foot or so. You may can read when very close to you but cannot see beyond arms length. Astigmatism is an irregular contour of the cornea and causes waviness and blurring in the pattern of sight. You can have one without the other. Your eye care professional can examine you and correct most of these problems. Seeing it clearer? ...Read moreSee 1 more doctor answer
NO: Astimatism is a type of refractive error like myopia (nearsightedness) or hyperopia (farsightedness). It is basically determined by the length of the eye and the shape of the front surface (cornea) of the eye. Sustained focusing for near may induce a progression (higher prescription) of a myopic refractive error but not asigmatism. ...Read more
Astigmatism: Astigmatism is one type of refractive error. Myopia (or nearsightedness), hyperopa (or farsightedness), and astigmatism all can cause refractive error. Refractive error is what causes a patient to require glasses or contact lenses to see better. Astigmatism is typically when the cornea is shaped more like a football than a basketball. Glasses, contact, and LASIK can fix this problem. ...Read more
Can you tell me in astigmatism, he wrote od 43.75 43.00 os 43.50 42.75 does anyone understand these numbers?
Curvature of cornea: These numbers are diopter power readings of the surface of the cornea. These measurements can be taken with a Keratometer or Corneal Topographer. Tha amount of corneal astigmatism is the difference between the two numbers for each eye. This does not indicate how much astigmatism correction would be in your glasses as there are other factors that can contribute to astigmatism. ...Read more
Astigmatism: This is unusual but certainly is possible especially if the astigmatism is irregular in nature because of a problem with the cornea (window to the eye). If you are unable to be corrected with glasses, a visit with an ophthalmologist is valuable to determine if an medical condition exists that is causing your severe astigmatism. ...Read more
Astigmatism: Astigmatism is one type of refractive error. Myopia (or nearsightedness), hyperopa (or farsightedness), and astigmatism all can cause refractive error. Refractive error is what causes a patient to require glasses or contact lenses to see better. Astigmatism is typically when the cornea is shaped more like a football than a basketball. Glasses, contact, and LASIK can fix this problem. ...Read moreSee 1 more doctor answer
Corneal curvature: Astigmatism just means that your cornea is not perfectly spherically shaped and instead has different curvatures in different directions (kind of like a football in the extreme example). Everyone has some degree of astigmatism although not everyone has enough to notice it. I doubt you "need" any surgery. ...Read moreSee 1 more doctor answer
Usually not: Astigmatism is a physical curvature aspect of the cornea and lens of the eye which in effect makes the eye oval. The term astigmatism is from physics and is not usually a bad thing. The correction is a reverse oval in the eyeglasses or contacts. Most astigmatism is small and easily corrected. Sometimes it is large or irregular and that make perfect vision difficult. See your ophthalmologist. ...Read more
Diagnosing Astigmati: Astigmatism is caused by a football shaped cornea so technologies can that can measure corneal shape (topographers) can diagnose astigmatism.Glasses refraction, corneal topography, scheimpflug photography, keratometry, and many sophisticated technologies can easily diagnose astigmatism today. Most cases can be corrected by glasses/cls, laser techniquesand lens implant technologies (toric lenses). ...Read moreSee 1 more doctor answer
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