Tips And Guides
1. How to read an eyeglass prescription
Glasses Prescription
| Sphere/SPH (Short/Long Sighted) | Cylinder/CYL (Astigmatism) | Axis | |
|---|---|---|---|
| R | -2.00 | - | - |
| L | -2.00 | -0.75 | 170 |
PD : 62mm
| Sphere | The term “sphere” is essentially the degree of correction needed to correct your near or farsightedness. |
| Cylinder (CYL) | The number indicates the lens power needed to correct astigmatism in your eyes. |
| Axis | The axis indicates the orientation of astigmatism, measured in degrees from 1 to 180. The number ranges from 1 to 180, with the number 90 corresponding to the vertical meridian of the eye and 180 corresponding to the horizontal meridian of the eye. If you do not have astigmatism and do not have a cylinder power on your prescription slip, you will not have an axis number, either. |
| Add or NV | The axis indicates the orientation of astigmatism, measured in degrees from 1 to 180. The number ranges from 1 to 180, with the number 90 corresponding to the vertical meridian of the eye and 180 corresponding to the horizontal meridian of the eye. If you do not have astigmatism and do not have a cylinder power on your prescription slip, you will not have an axis number, either. |
| Pupil Distance (PD) | This number indicates the distance from the center of one pupil to the center of the other, and is an important number for lens customization. |
2. Pupil distant (PD)
PD, or pupillary distance, refers to the distance in millimeters between the center of one pupil to the center of the other. Having a correct PD on your glasses prescription insures that you are looking through the ideal spot in your lenses. If this number was not provided on your prescription by your eye care professional, you can measure it yourself.
PD, or pupillary distance, refers to the distance in millimeters between the center of one pupil to the center of the other. Having a correct PD on your glasses prescription insures that you are looking through the
ideal spot in your lenses. If this number was not provided on your prescription by your eye care professional, you can measure it yourself.
3. Frame Measurements
- Lens width
- Bridge width
- Temple length
Lens Width
55 17-148
Bridge Width
55 17-148
Temple (arm ) Length
55 17-148
Lens Height
4. Frame and round glasses men and female face shapes
It is likely that you have one of the following face shapes: oval, square, round, heart, or diamond. By looking at a mirror and taking a close look at your facial features, you can find out which one matches you! Read on below to see how to determine which face shape you have, and what glasses will look perfect on you.
TEMPLE LENGTH
From the screw position measures to the end of the temple, including the bend. In other words, it’s the “arm length” of the frame. Temple length can fall between 120mm and 150mm with 135mm, 140mm, 145mm and 150mm being the most common. If you have problems with temples being too short, check out other frames as different brands varied in temple length, get those with lengths of 145 and 150mm. Also look for acetate temples which can be adjusted to get the best fit but you still need to make sure the length is long enough for the temples to sit horizontally but not angle up over the ear.
FRAME WIDTH
From one side of the screw measures to the other side of the screw. It gives you a sense of a frame’s overall width. Frame width is usually the most important factor in finding a pair of glasses that not just fit well but also highlight the individual’s unique features. As a golden rule, your eyes should be nearly centered in the width of the lenses. A frame that is too wide will make your eyes look close together, while a frame that is too narrow will make your face look much bigger and wider.
LENS WIDTH
The maximum width of the lens size in the frame, measured from the bridge. The width is limited by the frame style so if you personally favor wider lenses, you will need to go for frames that wider lenses fit in.
LENS HEIGHT
The maximum height of the lens size in the frame which is measured from the tip to the bottom of the lens aperture of the frame. This measurement is especially important for bifocal lenses or progressive lenses.
BRIDGE WIDTH
Bridge width is the gap above your nose between the lenses. It is the shortest distance between the lenses, typically ranges from 14mm to 24mm. If you have a narrow bridge or your eyes are a close set, you will want this number lower (15mm to 18mm) and if you have a wider bridge or a wide set eyes, you will like to have a higher number (18mm to 22mm).
When buying new eyeglasses, it’s always best to write down the frame size from your old pair of prescription glasses if they fit well on your face.
You can see some numbers printed or engraved on the inside of your glasses temples (arms) or behind the nose bridge area. Use 54-16-140 as an example. The first number, 54, represents the lens width; the second number, 16, refers to the bridge size, while the last number, 140, is the temple length. Sometimes there is a fourth number that refers to the lens height. These numbers come in handy and can act as a reference for you to pick the frames that best fit you.
Heart Face
Oval Face
A face with an oval shape features higher and slightly wider cheekbones that is slightly narrower towards the forehead. This long, round glasses men and female allows you to pull off almost any style — especially oversized and wide frames. With an oval face shape, feel free to go bold with a funky color, texture or frame shape. Square, wayfarer, tortoise, and rectangular — the possibilities are endless!
Round Glasses Men and Female Face
There are many glasses shapes that suit round glasses men and female face. With a proportion that’s relatively equal in width and length, round faces should look to sharp-angled frames to add a little extra definition and depth. Avoid small and round frames so your features don’t become lost. And by choosing a pair of frames that are more angular and wide, you can add the illusion of length to your face. Full-rim and semi-rimless frames are great styles to consider.
Square Face
5. Colour guide for glasses
Asians have a yellow, warm base for skin color which can be described as “peaches and cream”. It is important to note that finding the best glasses for Asians can be difficult because a majority of the population has a cooler base skin color – or blue-ish, which is the opposite of Asian base skin color.
Eyes are generally the second aspect to consider when choosing glasses. Asians tend to have brown eyes, but this brown can vary from a light brown to a very dark brown – almost black.
Most Asians, naturally, have black or very dark brown hair. This is considered a warm color for hair. With these color combinations in mind, Asians tend to lean toward “warm” color tones, you can choose the best glasses for Asians by going with one of these colors: black, plum, eggplant, jade, amber (dark). It is suggested that Asians stay away from light or pastel colors.
6. How to choose lenses
Lens
Clear Anti Reflection
Anti-reflective, or AR, coating is another beneficial coating for any pair of eyeglasses. This coating gets rid
of annoying glare, halos around lights and reflections on your lenses caused by computers and lights. They also make your lenses nearly invisible by removing reflections, making your lenses less of an obstruction during face-to-face conversations or photography sessions.
Anti-reflective coating is especially important for people with high-index lenses, as these lenses have higher refractive indexes. This increased refractive index means these lenses will tend to reflect up to 50 percent more light than traditional lenses, causing more glare unless they are equipped with AR coating. Anti-reflective lenses are important for nearly everyone in the modern world — especially those working around computers or cameras
or regularly driving at night.
HD Blue 420
HD Blue 420 offers your eyes 100% protection from UV rays and filters Harmful Blue Light, decreasing the risk associated with long-term exposure to UV and HEV rays.While filtering out Harmful Blue Light, Lens allows low energy blue light – which is essential for true color perception and essential sleep cycle rhythms – to pass through to the eye.
If your day includes continuous exposure to HEV Blue Light sources and as a result, are experiencing eyestrain and eye fatigue,this Lens is the choice for you.
Photogrey
Photochromic lenses are clear lenses that react to ultraviolet rays. They therefore possess the ability to change colours depending on the light intensity.
Here are the advantages of photochromic lenses:
- They adapt to environmental changes (indoor, outdoor, high or low brightness).
- They provide greater comfort, since they reduce eyestrain and glare in the sun.
- They are available for most prescriptions.
- They provide daily protection against harmful UV rays, by absorbing 100% of UVA and UVB rays. – They allow you to stop juggling between your pair of clear glasses and your sunglasses.
- They are available in different colours to suit all needs.
Len Index
The index of your lens, also referred to as the index of refraction or refractive index, is a number that indicates how efficiently the material bends, or refracts, light. The higher the refractive index of the lens, the more slowly light moves through it, and the more the light bends. For you, this means a thinner high-index lens will perform the same as a thick set of standard low-index lenses.
Additionally, higher indexes are able to handle higher prescriptions. If you have a particularly strong prescription, a lens with a higher index may be the best choice for you.
1.56 Index — Standard Lens
If you are looking for an economical option for your lenses and have a weaker prescription, these lenses may be the right choice for you. These single-vision lenses are the most basic option we offer.
This index is most suitable for prescriptions with an SPH correction of +/-4.00 and below, or a CYL correction of -2.00 and below.
1.61 Index — Thin and Light Lens
For people with somewhat stronger prescriptions, these lenses may be a better choice than the standard lenses. These lenses are thinner and stronger than their 1.5-index counterparts, handling SPH corrections between -4.00 to -6.00, and CYL corrections of -2.00 and below.
1.67 Index — Ultra-Thin Lens
These lightweight, thin lenses ensure your eyes do not look distorted from a higher prescription. If you have a particularly strong prescription, this is likely the best choice for you. We typically recommend these lenses for people with SPH corrections between -5.00 to -10.00, and CYL corrections of -2.00 and below.