Q: What’s the meaning of axis in eyeglasses?
A: The Shape of the Eye
The human being eye is really a sphere. Light enters it and refracts evenly. This even refraction translates through your nervus opticus to images in your brain. You observe things clearly, completely in focus, as they are actually. Deviation because of this standard of perfect vision is normal throughout life. Some individuals are born with vision that is not perfect and require corrective lenses early in life. Others lose perfect vision from the natural aging process and commence wearing glasses later. In every eyeglass prescriptions, you'll see a few numbers.
If you have astigmatism, your eye seriously isn't spherical; it's shaped similar to a football. With astigmatism, two other numbers, cylinder and axis, are essential to get your prescription correct. The cylinder number refers to the amount of astigmatism you've got. The more the amount, the more astigmatism you have with your vision. Imagine a plus ( + ) sign but maintain vertical and horizontal lines separate. With astigmatism, you may have two things on these different axes, not merely one for the whole plus sign.
One more number will be the axis of the astigmatism. To acquire your eyeglass prescription correct, the physician should not merely figure out how much astigmatism you could have, but what axis your eye has. Astigmatism means your eye is not spherical. Axis determines at what angle your eye rests. Imagine holding a football on its point, then leaning it to a single side or another for a 90-degree angle. The axis inside your prescription determines this angle inside your eye.
- Model No: EM034
- Highlight: Latest Fashion Style
- Gender: Woman’s Eyewear
- Age Group: Adults
- Frame Size: 52-18-135
- Shape: Rectangle Eyewear
- Spring Hinge: Yes
- Color: Gun Front and Black Temple
- Available Color: Silver Front and Black Temple
- Material: Metal Front and Acetate Temple
- Tips: No
- Bridge: Adjustable nose pads
- Original: ShenZhen
- Rim: Nylon Spectacle
- Certificate: CE and FDA are certificated
- Warranty:1-Year Warranty.
- Availability: In Stock for Eyewear Wholesale
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- Minimum Order:12pcs/Model, 300pcs in total
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- Package: 1pcs/Poly-bag, 12pcs/Inner Box, 300PCS/Carton
- Carton Box Size: 84*27*31
- Cross Weight: 12KGS
- HS Code: 90031900
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