
Twenty-Twenty Optometry (San Jose, CA 95131)
(408) 433-0800
Category: Eye Doctor
2555 N 1st St,
San Jose, CA 95131

(408) 433-0800
Category: Eye Doctor
2555 N 1st St,
San Jose, CA 95131
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Hours



Why is my my vision partially blocked by headaches sometimes?
If you get headache first,then accompanied by loss of vision,it possibly can be migraine.You'd better go to see your doctor.
Should I wear glasses all the time if I have astigmatism?
I've got astigmatism and farsightedness and have been wearing glasses all the time as what my doctor suggested me. Everytime when I remove my glasses I cannot see clearly even the near things. Maybe not to wear them if you have astigmatism will get you a worse vision.
Do all sunglasses have the protection of uv rays?
Prevention of UV radiation is almost the first concern for people to choose sunglasses. Except for sunglasses which are labeled as "cosmetic', all sunglasses offer the protection of UV rays.
What are the reason for myopia?
Myopia is also called nearsightedness, it is a refractive disorder where distant object cannot be seen clearly. This condition occurs because light rays coming to an eye from distant object focus in front of retina and the resulting image on the retina is blurry. The most common reason for myopia is elongation of an eyeball and normal refractive power becomes too strong for an eye. The images formed on the retina are blurry and therefore cannot be seen clearly. This form of myopia is known as axial myopia. In some rare cases it is possible that refractive power of an eye is too strong for a normal size of an eyeball and images from distant objects again focus in front of retina instead on it. The reason is either a strong refractive power of cornea (for example in condition known as keratoconus), or lens (for example condition known as lenticonus. Source:http://www.refractiveeyedisorders.com/myopia-nearsightedness/
Why people have different prescriptions in both eyes?
It is fairly common for people to have different prescription in each eyes. Just like,some people have one foot slghtly larger than the other. One eye slightly bigger than the other. Make sure to wear glasses which are prescribed especially for your eyes. Particularly when wearing contact lenses, don't wrongly wear your left contact lens on your right eye, or wear your right contact lens on your left eye, or will damage your vision.
Should I wear my glasses all the time if I can see things at close?
If your prescription for nearsighted is strong (especially more than -2.0--3.0), you are suggested to wear glasses all the time, even if you can see things clearly at close.
Are the eye muscles that cause astigmatic?
Eye muscles is not realted to astigmatic, instead of that, the irregular shape of cornea or lens can cause astigmatic. 1. If the cornea does not curve perfectly - if one half is flatter or steeper than the other - the light that hits it will not refract properly and the retina at the back of the eye will receive an imperfect image. The person will have blurred vision from that eye - astigmatism.2. The lens has variations in its curvature, rather than having a perfect curve, causing images to reach the back of the eye (retina) imperfectly. Most patients with lenticular astigmatism have a normally shaped cornea - the defect is only in the curvature of the lens. Source:http://www.medicalnewstoday.com/articles/158810.php.
How bad is your vision if you are suffering myopia?
Whenven you find youself cannot see far as clear as before, you should have your eyes examined to see if you are suffering myopia. If so, let them to do a careful examination, then them will give you their suggestions (whether or not you need a pair of eyeglasses to correct your vision) and your prescription paper which indicate the power of your eyes.
www.northvalleyoptometry.com
1155 N. Capitol Ave
2555 N 1st St
San Jose, CA 95131-1003
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