Tutorials & Tips

We offer thousands of frame styles, and we are increasing and updating in-stock styles every day. Our frames are private label generic eyeglasses frames which are high quality and trendy, yet can be obtained at a low and pretty affordable price. Most of our frames are made of plastic, metal alloy, memory metal, and titanium, which are lightweight, durable, and comfortable to wear.

It’s all up to your likings and dislikings to choose the frames that best fit you. Though it is a tough question to answer, there are several concerns we should be aware of before determining which frame is a wise selection for you.

• Face Shape
• Skin Color
• Lifestyle and personality

Eyeglasses and face shape

Your face shape is the first concern. Always choose the frames with the shapes opposite to your face shape, for example, boxy or rectangular frames work well with round faces, and vice versa. You are lucky if your face is an oval one, which flatters most of the frames.

A round pair of eyeglasses cannot fit all eyewear users satisfactorily. Eyeglass wearers usually need to resort to a specific frame shape that will complement their facial features best. For this reason, every customer should also avoid eyeglasses in certain frame shapes.

Each pair of eyeglasses only flatters certain types of faces. The criterion is that the frame shape should basically contrast with the wearer’s face shape. It is necessary for each customer to know exactly his or her own face shape.

1. Oval Face: Among all facial shapes, the oval is an easy-going one because it has well-balanced proportions. Customers with such a face will go well with most eyewear frames. The only task is to keep its natural balance. Good frames for this group of people include frames that have an equal width of the broadest part of the face. In contrast, eyewear frames that are too deep or narrow should be avoided.
2. Oblong Face:  An oblong face has more length than its width. In most cases, people with such a face have angular features with high cheekbones, a longer nose, and a tall forehead. According to the stated guideline, the task is to offset these obvious features while selecting a frame shape. Oblong-faced customers are encouraged to try tall frames that help create a shorter face or broad frames with an accented top rim. The other task is to avoid all frames that may accentuate face length.
3. Square Face: People with a square face have the same proportions of face width and length, and usually a strong jawline and a broad forehead. These are sharp features similar to that of an oblong face. This is not a good balance so the first tip is to achieve more width than depth. Narrow oval frames are a good option. Another important task is to compromise those sharp facial angles. In this sense, eyewear frames that are capable of softening the angles are suitable.
4. Round Face: This face is similar to a square face in terms of width and length distribution. A noticeable difference lies in that a round face has no angles but curved lines. The first possible way is to make this face look thinner and longer. This breaks the natural balance between width and length. The second possible way is to create some beauty-enhancing angles. Angular narrow frames and geometric frames are good options.
5. Diamond Face: People with a diamond face have broad cheekbones, involving a naturally narrow eye line as well as jawline. This facial shape is dissimilar to any one of the other shapes. For customers with such a face shape, the only thing is to soften the noticeable cheekbones by highlighting the eye line. Cat-eye glasses and rimless glasses are good options.
6. Triangle Face: The base-down triangle and base-up triangle are opposite facial shapes. The first one has a narrow forehead and wide cheek and chin areas, while the second one has a wide top third and narrow bottom third. Matching these faces to appropriate frames also requires opposite tips. For the first group of customers, it is necessary to add width to the narrow upper third of the face. In contrast, the second group of customers is encouraged to add width to the bottom third.
7. Heart Face: Features of a heart face include a broad forehead, and wide cheekbones but a narrow, small chin. Similar to people with a base-up triangle face, heart-faced people need to choose frames that add width to the lower facial section. Narrow, round frames can soften the forehead.

Skin Color

Skin color is the second consideration. Choose the frames that match your complexion. People with a warm skin tone normally look good in the frames in colors like gold, copper, orange, red, and yellow. For people of cold skin tones, frames in black, brown, and blue will be good choices

Lifestyle and Personality

Your lifestyle and personality are the major determinants in choosing your frames. You may choose sheerly differentiated eyeglasses for yourself just for different occasions. We strive to enable our valued customers to buy multiple pairs of eyeglasses to create a real eyewear wardrobe.

An online optical store doesn’t have the chance to guide you through the try-on process, which is the only drawback for online retailers. Yet it is not so difficult to find a pair of properly-sized eyeglasses. You can look at or measure your old pair of glasses to get the dimension that fits you the best. By having these numbers, you can easily find the closest match on our website.

You can refer to the link about How To Measure Your Frame Size and What do the numbers printed on my frame mean?

Sorry, once an order has been placed you can’t add more glasses. If you place another order going to the same address before the first package is shipped out, you can contact customer service. We’ll combine the two orders, ship them together within one package, and refund one shipping fee! You can also choose to cancel the current order and place a new order. 

Mirrored lenses are created with a highly reflective coating that reduces glare by reflecting light away. These sunglasses lenses are highly functional yet also fashionable.

Krooway doesn’t offer mirrored lenses currently.

The best tint color for sunglasses depends on the individual’s preferences and specific needs. Here are a few popular options:

• Gray:  Gray tints provide natural color perception, making them suitable for various activities and environments. They reduce brightness without distorting colors, making them a versatile choice.
• Brown/Amber: Brown or amber tints enhance contrast and depth perception. These tints can be particularly useful in outdoor activities like hiking or fishing, as they provide clearer vision in bright conditions.
• >Green: Green tints offer great color balance and clarity while reducing glare, especially in bright sunlight and high-glare environments such as water bodies or snowy landscapes.
• Yellow/Orange:  Yellow or orange tints improve depth perception but may distort colors slightly. They enhance visibility in low-light conditions, making them popular for sports like shooting or skiing during overcast days.

It’s important to consider your specific requirements when choosing sunglasses’ tint color, such as the intended use (e.g., driving, sports), lighting conditions, personal style preferences, and any additional features like polarized lenses that can also affect visual experience.

Sure! If you order Rx sunglasses, you can get the lens with the index that is recommended for your Rx to keep your lenses nice, light and thin. If you get non-Rx sunglasses, your lenses will be thin.

What is Blue Light?

Contrary to UV light, blue light is emitted all around us, every day — both indoors and outdoors, from the screens on our digital devices to the sun as the biggest source. Extended exposure to certain wavelengths may cause eye fatigue and discomfort, but don’t worry! Our blue light filtering glasses and computer screen glasses can reduce your exposure to potentially harmful blue light. Learn how to choose the best lenses for blue light prescription glasses.

How Does Blue Light Affect Us?

Our constant connection to our smartphones, tablets, and laptops may contribute to headaches, sore eyes, and stiff necks — all symptoms of digital eyestrain. With the majority of our waking hours spent in front of a screen, paired with harmful blue-violet light* from digital devices, it’s no surprise that our eyes are working harder than ever

*Disclaimer: Harmful blue-violet light is between 415-455nm.

If you’ve ever worried about the effect of digital screens on your eyes, then you may have heard about ‘blue light’, and perhaps even searched for ways to protect your eyes against it. Blue light glasses (or blue light blocking glasses) are becoming more popular than ever due to claims that they can protect your eyes against potential damage — but how effective are they at keeping your eyes healthy? Here, we’ll take a closer look into the scientific research behind blue light glasses, and whether they actually work.

Protect Your Eyes with Blue Light Filtering Glasses

Both our non-prescription and prescription blue light filtering glasses and prescription computer glasses are designed to protect your eyes from extended exposure to harmful blue-violet light. Whether you’re wearing them for gaming, working into the wee hours of the night, or binge-watching your favorite show, blue light filtering glasses and glasses for computer use are the way to go.

The thickness of the lens is related to the lens index. We offer lenses with different indexes. Generally speaking, the higher the indexes are, the thinner and lighter the lens becomes.

Photochromic Lenses look like regular clear lenses when indoors, but automatically darken when moving into a brighter area. They will darken in the light even on overcast days as UV rays still penetrate clouds.

photochromic glasses are not to be confused with polarized glasses. These have a set tint that protects from glare but they aren’t changeable; they don’t adapt to the light in the same way photochromic lenses do.

If you want to order photochromic lenses, please follow the steps

Our lenses are made of resin, which is lightweight and highly impact-resistant. Resin lenses also have a strong ability to block ultraviolet radiation to protect your eyes.

Generally speaking, spherical lenses are thick and the images through the lenses will be distorted. While, with the same prescription and index, aspherical lenses are thinner, lighter, and more comfortable for wearers. Aspherical lenses have a wider vision and the images through the lenses are more real and natural. Wearers will not feel tired after wearing aspherical lenses for a long time.

1. Single vision lens
Single-vision prescription lenses are for people who need to correct one field of vision, either for distance, intermediate (computer), or near vision (reading). They contain the same amount of vision correction throughout the entire lens. There is no ADD in the prescription in the single vision prescription and there are no lens height requirements for single vision prescription.

2. Bifocals
Bifocals (sometimes called “lined bifocals”) contain two prescriptions within the same lens and can correct both nearsightedness and farsightedness. The top portion of the lens is used for distance, while the bottom portion of the lens is used for closer vision. The zones are separated by a noticeable line.

3. Progressives
Progressives are multifocal lenses that contain at least three prescriptions. They have three main fields of vision: near, intermediate, and distance. However, progressives do not have a visible line between prescriptions. This gives the wearer a seamless and uninterrupted transition when looking from up-close objects to far-away distances.

Advanced Progressive lens
Advanced Progressive lenses are the most popular type of high-definition lenses and are made with free-form technology that can allow you to achieve better optics. The progressives are added on the backside of the lens to enlarge visual fields and minimize the uncomfortable effects. Compared with the standard progressive lens, Advanced Progressive lenses are easier to adapt to.

4. Computer lens
The lenses of computer glasses are designed to deal with eye strain caused by computer screens. Computer glasses help with an intermediate distance of around 20 to 26 inches, which is the distance most people sit from their monitors. Many computer glasses have light yellow/brown tinted lenses to block out blue light radiating from your electronic devices.

5. Reading glasses
Reading glasses are made primarily for presbyopia, which is an age-related eye disease most people experience around 35 to 45 years of age. Presbyopia is caused by a decreased elasticity in the eye’s lens, making it more difficult to focus on objects in a close range.

1. Single vision lens:

Single-vision prescription lenses are for people who need to correct one field of vision, either for distance, intermediate (computer), or near vision (reading). They contain the same amount of vision correction throughout the entire lens. There is no ADD in the prescription in the single vision prescription and there are no lens height requirements for single vision prescription.

Single vision lenses refer to the lens that have only one use, to see objects in the distance, to see intermediate like computer or phone, or to see near for reading (reading glasses).

While progressives are a type of prescription eyeglasses that can be used to correct both near and farsightedness. This means you can see your whole field of vision without switching between multiple pairs of glasses.

A Polarized lens is a kind of sunglasses that greatly reduces the glare from light that is Polarized horizontally, meaning the light reflects off horizontal surfaces, such as a white sidewalk, a white-sand beach, snow, or sunlight reflecting on the water.

Metal is the most widely used material to make eyeglass frames. Many people opt for metal frames because they are attractive and for their malleability and resistance to corrosion.

Shop Metal Glasses

Titanium frames are very popular because they are lightweight, durable, strong, and corrosion-resistant. Titanium frames can be made in a selection of different looks, from modern to classic. They are also hypoallergenic, and they retain their shape better than other metals. They bend according to force but retain their shape due to the resistance the alloy provides.

Shop Titanium Glasses

Plastic: TR90 is referred to as plastic titanium, a memory polymer material frame. TR frame is lightweight and impact-resistant and high temperatures. It is colorful and has no release of chemical residues. However, it is a little less durable than metal and may fade, burn, and lose strength over time.

Shop Plastic/TR90 Glasses

Acetate is a nylon-based plastic, which means it’s very strong in addition to being lightweight. Acetate comes in many different colors, with a high, rich luster, and is produced in high-quality, sandwiched sheets. The frame is stamped from these sheets and requires handcrafting to attain its final shape and appearance. The acetate frame is hard, and glossy, and strengthens steel skin combined with a solid performance, appearance, and style. It is not easily deformed in color and is very durable.

Shop Acetate Glasses

Yes. We offer spring hinge glasses whose temples are not snapped or broken easily! Please visit this link to check the details.

Yes! If you choose Frame Only during ordering, it will take you to the page where you can choose what kind of non-prescription lenses. Many frames still come with retainer lenses (not of optical lens quality) to maintain frame integrity during shipping. They may be removed if desired.

Yes. When a frame is out of stock, you will see an “out of stock” message below the frame. Enter your email address in the space provided, and we’ll let you know when the item becomes available.

Our frames usually have more than one color, so you can choose the color you like on the extreme bottom-right corner of the frame.

Typically, there will only be one number in your PD measurement – this is called Single PD, and it can be used to order most types of prescription eyeglasses.

But if you have two different numbers, you have been measured for Dual PD (also known as monocular PD). In this scenario, the numbers are measurements of the distances from each pupil to the bridge of your nose – the first number refers to the left eye distance, and the second to the right. Added together, these numbers should equal the full distance measured between your two pupils. Dual PD is required for reading glasses, but not usually necessary otherwise.

• Two of the same number (e.g. 30/30): This is the same as a Single PD measurement between the pupils. When entering this information to order your glasses, you can just add these together and we’ll automatically divide it equally.
• Two low numbers (e.g. 30/31): The first number is the monocular PD for the right eye (O.D.) and the second number is for the left eye (O.S.).
• Two high numbers (e.g. 62/59): This is used only for reading glasses. The first number is your Distance PD and the second number is your Near PD.

What is PD?

• PD stands for Pupillary distance or interpupillary distance which is the distance between the centers of the pupils of the eyes.

How do you find the pupillary distance on a prescription?

• Pupillary distance measurements are not always listed on your prescription but it’s easy enough to obtain using a ruler and a mirror. How To Measure Your Pupillary Distance (PD)

How is the pupillary distance measured?

1. Stand in front of a mirror.
2. Hold a ruler against your brow.
3. Close your right eye and then align the ruler’s 0 mm with the center of your left pupil.
4. Look straight, close your left eye then open your right eye.
5. The line that lines up to the center of your right pupil is the PD.

How important is the PD for glasses?

• Pupillary distance is needed to make a pair of prescription glasses because it tells the manufacturer of the glasses where to put the optical center on each lens.

What happens if the pupillary distance is wrong?

• If your pupil distance does not match the centers of your pupils, your vision will be affected. The wrong pupillary distance induces eye strain, fatigue, headaches, and blurry vision.

If you want to cancel your order, it is expedient if you contact us via help@krooway.com

Yes. If the glasses quantity of your orders is no more than 4 and you did not use any voucher or promotion on your orders, you can combine them for one shipment and we can refund you part of the shipping fee. Just tell us your order numbers before checking the package status by sending an email to help@krooway.com.

Immediately Contact US. We will work with you to get your damaged glasses replaced with a new pair as soon as possible.

Yes. We offer free shipping to US/CA/UK/FR/DE/NL/ES/IE/SG/AU/NZ/CH/SE/FI/IT/MA/KR/MX/BE/PT/AT/JP/PL/BR on the condition that your order is over US$69. You can click here for more information.

• Click here ‘Track Order’. Please fill in the email address you used to place your order or the tracking number when your glasses have been shipped out.
• Login into your own account and you will see the status of your order and its details.
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