How do I know if I am suitable for this kind of glasses before buying them online

Everyone knows that buying glasses online is much cheaper than optometrists or any physical glasses retailer. However, many people are still a little worried, because we are not sure whether this beautiful glasses really suit us. Recommended reading: How can I choose the glasses that suit me?As we all know, trendy sunglasses The emergence of the market is worthy of many people’s attention, which has aroused the waves of the whole market. https://dillydollaroptical.com/

Virtual mirror-It is like a mirror, and you can use it on your computer or mobile device. You can take photos of your face, upload photos or import photos directly from Facebook with your computer webcam or mobile phone. You can also choose different types of frames for yourself, so that you can be more firm when buying and know what kind of face and skin color glasses are suitable for.

You can’t always try on your glasses wirelessly in an optical shop. Using virtual mirror image will avoid this embarrassment. When you stay online and use virtual mirroring, you can try thousands of frames and countless styles, shapes and colors.

In the past, buying glasses online meant taking risks. Nowadays, with the function of virtual mirror, you can know whether the frame you want is suitable for you before buying, and you can learn a variety of glasses that are most suitable for your face without leaving home.

Virtual mirrors mean convenience and comfort-buying frames online eliminates the trouble of dressing up, driving to the store and getting stuck in traffic jams, not to mention having salespeople hovering around you when you try to decide which frames to buy. With virtual mirroring, you can try on your glasses in the comfort of your home. If you want, don’t let anyone try to make you buy a more expensive frame.

How do I know if I am suitable for this kind of glasses before buying them online

Everyone knows that buying glasses online is much cheaper than optometrists or any physical glasses retailer. However, many people are still a little worried, because we are not sure whether this beautiful glasses really suit us. Recommended reading: How can I choose the glasses that suit me?Actually, it’s not just this reason, online prescription Its own advantages are also obvious, and it is normal for the market to perform well. https://dillydollaroptical.com/

Virtual mirror-It is like a mirror, and you can use it on your computer or mobile device. You can take photos of your face, upload photos or import photos directly from Facebook with your computer webcam or mobile phone. You can also choose different types of frames for yourself, so that you can be more firm when buying and know what kind of face and skin color glasses are suitable for.

You can’t always try on your glasses wirelessly in an optical shop. Using virtual mirror image will avoid this embarrassment. When you stay online and use virtual mirroring, you can try thousands of frames and countless styles, shapes and colors.

In the past, buying glasses online meant taking risks. Nowadays, with the function of virtual mirror, you can know whether the frame you want is suitable for you before buying, and you can learn a variety of glasses that are most suitable for your face without leaving home.

Virtual mirrors mean convenience and comfort-buying frames online eliminates the trouble of dressing up, driving to the store and getting stuck in traffic jams, not to mention having salespeople hovering around you when you try to decide which frames to buy. With virtual mirroring, you can try on your glasses in the comfort of your home. If you want, don’t let anyone try to make you buy a more expensive frame.

Wearing glasses is equal to protecting your eyes.

When you are nearsighted, you should have an eye examination and wear glasses according to the requirements of the optician. Wearing glasses doesn’t mean it’s harmful to your eyes, on the contrary, it’s protecting your eyes. Of course, nowadays glasses are not only used to protect myopia, but also have many other uses. Recommended reading: magic and simple method of repairing glassesAfter screening and investigation affordable eyewear It is likely to become a new force driving economic development. https://dillydollaroptical.com/

Fashion-glasses have many styles, colors and shapes, which are the latest fashion trends. They are a good accessory to make any equipment fashionable and enhance your facial features.

Eye protection-In today’s digital world, it is important to properly protect your eyesight to ensure that it lasts for a lifetime. Glasses can not only protect your eyesight from the influence of digital screen, but also prevent dirt and dust from entering your eyes. Besides, glasses can also help protect your eyes from harmful ultraviolet rays.

Convenience-Unlike contact lenses, glasses are easy to put on and take off. Glasses don’t need extra cleaning, and they don’t need to be changed as often as contact lenses.

Just as other parts of your body begin to change with age, so do your eyes. Checking your eyesight regularly can ensure that your eyesight is the best. A comprehensive eye examination can help control headaches and fatigue caused by wrong prescriptions, and can also help detect computer vision syndrome.

As we all know, many serious eye diseases that can lead to blindness have no symptoms. As we all know, these conditions are gradually developing, and you may not realize that your vision has changed. Diseases that can be diagnosed by ophthalmological examination are glaucoma, macular degeneration, cataract, diabetic retinopathy and retinal detachment. In a comprehensive eye examination, most eye diseases can only be diagnosed by ophthalmologists.

When they say that the eyes are the windows to the soul, they are not lying. They are also a window to your overall health. Your eyes can help detect systemic diseases such as diabetes, hypertension and high cholesterol.

Our eyes bring us into contact with the world we live in and contribute to our study. Ensuring that your eyes are in the best health is very important for you to have vision and vision for a lifetime. For children, uncorrected vision can lead to “lazy eyes” or “eye rotation”, and if it is not treated in time, it will lead to permanent vision loss.

Wearing glasses doesn’t mean it’s harmful to your eyes, on the contrary, it’s protecting your eyes. Of course, nowadays glasses are not only used to protect myopia, but also have many other uses.

Eye protection artifact blue optical filter glasses

When you read news, watch movies or play video games, a pair of blue protective glasses is the safest way to keep your eyes healthy. You may have called them PC glasses. Because the typical reading distance of a computer is different from the distance you read from a book, computer glasses should adapt to this situation and be customized according to your personal needs. Recommended reading: What are the causes of myopia and how to protect your eyes?Only by working together can we turn fashion eyeglasses The value of the play out, the development of the supply market needs. https://dillydollaroptical.com/

The best computer glasses not only correct your vision from reading on a screen, but also have anti-blue glass from bad blue light that may damage your retina and protect your eyes.

There are several ways to filter blue light on a laptop, TV or computer. There are even some applications that can modify the color temperature of the screen. However, the science behind these applications is uncertain, so the safest way to protect your eyes is to use a pair of PC glasses with a blue filter.

Blue light filter glasses are glasses or sunglasses that absorb a lot of blue light. This is achieved through the combination of lens material and special coating applied to the lens. Most lenses also reflect some blue light away from the eyes.

Not all blue light is destructive-some of it is necessary for correct vision. By absorbing the right amount of harmful light, the blue light filter is useful for your eyes in many situations-at work, when you read on your tablet or mobile phone, and on bright, sunny days.

Ordinary glasses and readers usually don’t block blue light. Whenever you buy a pair of glasses, you can choose to add blue light filtering to the glasses lens as an extra function. Or, even if you don’t need a prescription, you can get PC protective glasses with blue light and anti-reflective coating.

In addition to painting lenses for ordinary glasses, you can also choose to wear sunglasses with colored lenses to block some blue light. This is not the most effective solution, but it can sometimes be used as a temporary fix.

Yellow and amber lenses are the only two colors that help filter blue light in the visible spectrum. However, whether you use these tones in front of a laptop or on the street, the color tones of the lens will also distort all other colors.

Colored computer glasses with yellow lenses are also usually sold as video game glasses because they improve eye comfort by increasing contrast and reducing some tired blue light.

If you are a night owl or a computer addict, you may already know that the screen can really hurt your eyes. Every minute spent in front of a screen without computer eye fatigue protection will affect your eye health for a long time.

Is the electric wheelchair a brushless motor or a brush motor

  Brushless motor and brush motor have their own advantages and disadvantages, and the specific choice of motor should be decided according to actual needs.With the expanding influence of the industry, 電動輪椅 Our business is also constantly spreading, and the development of the market is also gradually advancing. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Brush motor is a common motor used in early electric wheelchairs. Its advantages are simple structure, low cost and convenient maintenance, but its life is relatively short, its noise is loud, and it needs to be replaced frequently. Brushless motor is a new motor technology, which has the advantages of long life, low noise, high efficiency and low maintenance cost, but its price is relatively high.

  

  Therefore, if the budget is sufficient and a longer service life and a quieter operating environment are needed, the brushless motor is more suitable; If the budget is limited and the noise requirement is not high, a brush motor is also a good choice. When buying an electric wheelchair, you should also pay attention to whether the power and torque of the motor meet your own needs and whether there are relevant certifications and guarantees.

  

  Is the electric wheelchair as long as possible?

  

  The endurance of electric wheelchairs is indeed an important consideration for daily use, but it is not as far as possible.

  

  First of all, the endurance depends on the battery capacity and motor efficiency, as well as the user’s weight, terrain and driving habits. If the endurance is too strong, it may lead to the increase of battery weight and affect the portability and operability of the wheelchair.

  

  Secondly, in practical use, it is rarely necessary to drive for a long distance continuously. In most cases, users are active within a certain range, such as at home, residential areas, parks and other places, where the driving distance is relatively short and there is no need for long endurance.

  

  Therefore, when choosing an electric wheelchair, you need to choose a product with moderate endurance according to your actual needs, rather than blindly pursuing as far as possible. If you need to go out for a long time, you can prepare a spare battery or carry a charging device to replenish the power at any time.

  

  Is the electric wheelchair a lead-acid battery or a lithium battery?

  

  Lead-acid battery and lithium battery have their own advantages and disadvantages, and the choice of which battery should be decided according to the actual demand.

  

  Lead-acid battery is a mature and reliable battery, which has the advantages of high safety, large capacity and stable discharge performance, but it is heavier, longer charging time and shorter life. Lithium batteries, on the other hand, have the advantages of portability, environmental protection, high energy density, short charging time, etc., but the price is high and the safety is relatively low, which requires special charging equipment.

  

  Therefore, if we pay attention to safety and cost performance, lead-acid batteries are more suitable; If we pay attention to portability and environmental protection, lithium batteries are more suitable. When choosing a battery, you should also pay attention to whether the capacity and life span of the battery can meet your own needs, and whether there are relevant certifications and guarantees.

  

  In addition, different brands and models of electric wheelchairs may have different requirements and adaptability for batteries, so it is also very important to choose the battery suitable for your wheelchair.

Controller is the core component of electric wheelchair.

  The controller is the core component of the electric wheelchair, which can also be understood as the “steering wheel” to control the direction of the wheelchair, and is responsible for the operation of the linkage motor. Its quality directly determines the maneuverability and service life of the electric wheelchair, and the functions and performance of the controller equipped with different configurations of electric wheelchairs will be different. Advanced electric wheelchairs are usually equipped with intelligent control system, which can freely adjust the speed and direction according to the user’s habits and environment to provide a more comfortable driving experience (controllers can be divided into basic models/with folding function/with reclining function/multi-function buttons according to the operation panel) and other feedback functions of intelligent voice broadcast. However, the basic electric wheelchair usually has simple control function, and it is not equipped with the common functions of intelligent voice broadcast and mobile phone remote control adaptation. Individual manufacturers have also added usb-adapted mobile phone charging port and lighting lamp to the controller.The industry believes that, 電動輪椅 The development of our company marks the rapid and steady progress of the whole industry. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Most imported brand controllers are composed of upper and lower controllers, while most domestic brands only have upper controllers. Generally, the brushless ones in China are generally divided into upper controller and lower controller, and most of the brushes have only upper controller. Among the imported controller brands, PG in Britain and Dynamic in New Zealand are widely used. Domestic brands include Wuyang and Shiyou, Shanghai Zhilian Aomang, Nuole, Maikong, Pilotage, etc. Comparatively speaking, imported brands are better, and the cost and price are higher than domestic brands. However, in recent years, the rise of domestic products can also meet the needs and experiences of most consumers. You can also use the following operations to judge whether the controller is good or bad.

  

  1. Turn on the power switch and push the controller to feel whether the vehicle is stable when starting; Release the controller and feel whether the car stops immediately after a sudden stop. It is advisable to judge whether the controller is normal by starting and stopping slightly.

  

  2. Control the rotating car to rotate 360 degrees in situ, and feel whether the steering is smooth and flexible, subject to the steering sensitivity.

Common sense of using electric wheelchair scooter for the elderly

  The development trend of electric wheelchair and old scooter is portable, and the lighter the electric wheelchair, the more convenient it is. However, there will be some wrong operations when the elderly choose or use them, which will often cause unnecessary problems and avoid unnecessary injuries caused by improper operation.Since then, more and more people have found that 電動輪椅 The value of, thus affecting the choice of many people. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  First, the driving operation is not standardized: the elderly and disabled people sometimes appear in the fast lane and ignore the traffic lights when driving electric wheelchairs and old scooters. This is a very dangerous operation, because the speed of electric wheelchairs and old scooters is very slow, and the speed is generally not more than 10 kilometers per hour. Driving an electric wheelchair scooter on the fast lane will cause traffic congestion, and in the worst case, it will cause a serious traffic accident. You must not drive on the motor vehicle lane, and you should drive on the sidewalk or non-motor vehicle lane.

  

  Second, electric wheelchairs and old scooters need daily maintenance, especially before use, the power and tires must be checked, and the welding points of the frame and the tightness of each screw need to be checked every once in a while. Electric scooter had better keep the battery fully charged at any time, and charge it as needed. Frequent power loss will lead to the reduction of power storage capacity. There are still many people who blindly pursue cruising range and driving speed when purchasing electric wheelchairs and old scooters. In reality, it should be chosen according to the user’s normal range of activities. If the range of activities is small, it is not necessary to choose an old scooter with too large battery capacity.

  

  Third, in the process of selling electric wheelchairs and elderly scooters, many elderly people often choose portable folding electric wheelchairs for convenience. In fact, this is a serious misconception. We always guide the elderly not to move electric wheelchairs, scooters and so on. Even if it is difficult to pass, it is recommended to get off and pass. If you encounter steps on the road, it is best to ask your family or passers-by for help. It is not recommended for the elderly to move it by themselves, because the lightest folding electric wheelchair weighs about twenty or thirty kilograms. This weight is also very heavy for the elderly, and if you move it by your own strength, it may lead to unnecessary injuries such as waist fractures.

Take you to understand the basic structure of the electric wheelchair.

  Before introducing different configurations of electric wheelchairs, let’s first understand the basic structure of electric wheelchairs. Electric wheelchair is usually composed of motor, controller, battery, frame and other main parts. The motor is responsible for driving the wheels, the controller controls the speed and direction of the motor, the battery provides electric energy, and the frame supports the whole structure. Different configurations of electric wheelchairs are different in these parts, which will be introduced in detail below to help you understand.pass 電動輪椅 It can be seen from the present situation that the market prospect is relatively broad, which is conducive to our reference and investment. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Motor: The motor of electric wheelchair is its core component, which directly affects the performance of wheelchair. At present, the electric wheelchairs on the market usually adopt DC Motor and AC Motor. DC motor usually has a high speed and is suitable for use on flat roads, while AC motor has a large torque and is suitable for driving on ramps and uneven roads. In addition, the power of the motor is also a key factor in the selection. The greater the power, the stronger the climbing ability and load capacity of the electric wheelchair. Therefore, when choosing an electric wheelchair, it is necessary to choose the appropriate motor type and power according to the user’s needs and specific use environment. In the difference between electric wheelchairs, it is necessary to distinguish between brush motors and brushless motors, and between AC motors and DC motors.

  

  Brushed DC motor refers to a DC motor that uses a carbon brush to contact with a rotating armature to exchange polarity and provide current. Brush provides current to armature through power supply when armature rotates, so it is also called carbon brush motor. Its advantages are simple structure and low use cost, but the brush is easy to wear and has limited service life, and at the same time, the brush will also produce electric spark interference, which will lead to high noise of the motor and is not suitable for high-precision applications.

  

  Brushless DC motor refers to a DC motor that uses an electronic commutator to control the phase sequence of the motor, without using a brush to contact the armature. Its advantages are long life, high efficiency, low noise, stable operation and fast response, so it is widely used in high-precision application fields such as high-performance power tools and electric vehicles. Disadvantages are complex structure and high cost.

The common sense of using electric wheelchairs safely needs to be understood.

  Rechargeable batteries have gradually become a necessity in people’s daily life. My friends, do you know how much safety hazard will be brought about by the irregular operation of electric wheelchair batteries? When the battery is charged for a long time, physical and chemical reactions are easy to occur inside the battery, resulting in a large amount of heat and gas. When the battery is overloaded and charged, it is easy to explode, igniting the plastic parts of the electric vehicle and releasing a large amount of toxic smoke, resulting in casualties and property losses.Since then, more and more people have found that 電動輪椅 The value of, thus affecting the choice of many people. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Pay attention to the following items when charging the battery:

  

  1. When charging the electric wheelchair, use the charger adapted to the electric wheelchair, and check whether the rated input voltage of charging is consistent with the power supply voltage. It is forbidden to cover or place the charger on the seat cushion. Unplug the plug on the AC power supply after charging, and then unplug the plug connected to the battery. It is forbidden to connect the charger to the AC power supply for a long time without charging.

  

  2. The charging time of the electric wheelchair is suggested to be 6-8 hours. When the charging indicator light changes from red to green, it means that the battery is fully charged. Do not charge the electric wheelchair for a long time, especially in summer, when it is hot and charging for a long time, it is difficult for the charger to dissipate heat and cause combustion. Keep an eye on it when charging.

  

  3. When charging the electric wheelchair, check whether the connector is loose, whether the line equipment is aging, and the rubber of the wire is damaged, which may easily lead to short circuit and fire.

  

  4. Qualified electric wheelchairs, chargers and batteries produced by manufacturers with production licenses shall be used, and electric wheelchairs and accessories shall not be modified in violation of regulations. It is strictly forbidden to change or modify the charging circuit without permission. If the product or personnel accident occurs as a result, the manufacturer is not responsible.

  

  5. Electric wheelchairs should be parked in designated areas, not in stairwells, evacuation passages, and not occupying fire truck passages.

  

  6. Do not buy and use some non-standard and over-standard electric wheelchairs, and do not use non-original chargers to charge electric wheelchairs.

  

  7. Do not charge the electric wheelchair by private wiring, and do not charge it indoors, in the basement, at the entrance of the building, etc. Avoid charging immediately after driving at high temperature.

  

  8. Electric wheelchairs that are not used for a long time should be charged first, and placed after being fully charged, and then the main switch of the circuit should be disconnected.

  

  9. Keep a good ventilation environment at the charging place. Do not charge in the sun or wet environment. Be sure to stay away from flammable and explosive materials during charging and storage. Do not expose the charger to outdoor heat sources, such as radiator, fire source and sunlight.

  

  10. Do not move the wheelchair while the electric wheelchair is charging.

  

  11. Never modify the electric wheelchair, and check and maintain it regularly to prevent problems before they happen.

Precautions before using electric wheelchair

  Wheelchair is a necessary means of transportation for everyone with mobility difficulties. Without it, we will be unable to move. Use wheelchairs correctly and master certain skills. It will greatly help us to take care of ourselves. Do you know what the common sense of using electric wheelchairs is? What are the precautions for using an electric wheelchair?With the upsurge of industry development, 電動輪椅價錢 The expressive force in the market has also been very good, bringing many brand-new high-quality experiences to users. https://www.hohomedical.com/collections/light-weight-wheelchair

  

  Precautions for using electric wheelchairs:

  

  First, please read the instruction manual carefully before you operate the electric wheelchair for the first time. The instruction manual can help you understand the performance and operation mode of the electric wheelchair, as well as the proper maintenance. Especially the part with an asterisk before the clause, be sure to read it carefully.

  

  Second, don’t use batteries with different capacities. Don’t use different brands and types of batteries. Replace all batteries together, and don’t mix old and new batteries. Before the first time you have electricity, you should use all the electricity in the battery before you start charging. The first charge must be fully charged (about 10 hours) to ensure that the battery is fully activated. Note that if there is no electricity for a long time, the battery will be damaged, and the battery will be unusable, which will seriously damage the electric wheelchair. Therefore, check whether the power supply is sufficient before use, and charge it when the power is insufficient.

  

  Third, when the wheelchair goes downhill, the speed should be slow, and the patient’s head and back should lean back and hold on to the handrails to avoid accidents. Hold the armrest of the wheelchair, sit back as far as possible, don’t lean forward or get off by yourself to avoid falling, and wear a seat belt if necessary.

  

  Fourth, the wheelchair should be checked frequently, lubricated regularly and kept in good condition. Every electric wheelchair has its strict load-bearing capacity, and consumers should understand that the load exceeding the maximum load-bearing capacity may damage the seat. Frame, fastener, folding mechanism, etc. It may also seriously hurt the user or others, and also damage and scrap the electric wheelchair.

  

  Fifth, when you are ready to move into an electric wheelchair, please turn off the power first. Otherwise, if you touch the joystick, it may cause the electric wheelchair to move unexpectedly. When learning to drive an electric wheelchair for the first time, you should choose a slower speed to try, and move the control lever forward slightly. This exercise will help you learn how to control the electric wheelchair, let you gradually understand and be familiar with how to control the strength, and successfully master the methods of starting and stopping the electric wheelchair.