Aluminum production is a complex, multi-stage process that requires precision, efficiency, and the right equipment to handle the materials involved. Among the critical equipment used in this industry are pumps designed specifically for handling alumina—the key ingredient in the aluminum smelting process . In this blog, we will explore the role of these pumps in aluminum production, how they work, and why their performance is vital to the overall efficiency of aluminum plants.

Understanding Alumina in Aluminum Production

Alumina, also known as aluminum oxide (Al₂O₃), is a white, powdery substance derived from bauxite ore. The Bayer process is used to extract alumina from bauxite, and this alumina is the primary feedstock for aluminum smelting. To create aluminum metal, alumina undergoes an electrolytic reduction process in a Hall-Héroult cell, where the alumina is dissolved in molten cryolite and then subjected to an electric current to separate the aluminum from the oxygen.

Given the critical role alumina plays in this process, transporting it efficiently and safely through various stages is essential. This is where alumina pumps become indispensable.

The Function of Alumina Pumps in the Production Line

Pumps designed for alumina transport are used to move alumina slurry from one stage of the production process to another. These pumps are built to withstand harsh operating conditions, including high temperatures, abrasiveness, and corrosive environments. They are typically used in the transportation of the thick, viscous slurry formed during the Bayer process, which is often mixed with water to aid its movement through pipes and conveyors.

1. Transporting Alumina Slurry: One of the most crucial functions of these pumps is moving the alumina slurry from the refining process to the smelting process. The slurry contains a mixture of alumina, water, and other impurities, and it needs to be transported efficiently to ensure the next stage of aluminum production can proceed without delays. Pumps play an essential role in both the refining and the smelting plants, ensuring smooth transitions between stages.

2. Ensuring Smooth Flow and Consistency: The consistency and flow rate of the alumina slurry are important factors for maintaining continuous production. Pumps help ensure that the slurry moves at a consistent pace, without clogging or interruptions, which could otherwise halt the entire production line . Maintaining the right flow rate is essential for both energy efficiency and meeting production quotas.

3. Handling Abrasive Materials: Alumina, being a fine, powdery material, can be abrasive when mixed with water. Pumps used for handling alumina need to be durable and capable of withstanding this abrasive nature. Special materials such as hardened steel and rubber coatings are often used to protect the pumps from wear and tear, ensuring long-lasting performance.

Why Alumina Pumps Are Vital to Aluminum Production

The efficiency and reliability of these pumps have a direct impact on the overall productivity of aluminum plants. Without properly functioning pumps, there could be disruptions in the flow of alumina, leading to delays in the smelting process and potentially costly downtime. Below are some reasons why pumps designed for aluminum transport are so vital to the aluminum production process:

1. Reducing Downtime and Maintenance Costs: Pumps that handle aluminum are designed for high efficiency and minimal downtime. With proper maintenance, these pumps can continue to operate for extended periods, reducing the need for frequent repairs and replacements. Downtime in aluminum production can be Expensive, so reliable pumping systems are crucial to maintaining continuous operations.

2. Enhancing Efficiency in the Refining Process: In the Bayer process, alumina is extracted from bauxite using a combination of heat, pressure, and chemicals. The alumina slurry must be moved efficiently through various stages of the process to achieve high yields and minimal waste . High-performance pumps help ensure that the alumina is consistently transported, allowing for better process optimization and reducing waste.

3. Ensuring Environmental Compliance: The aluminum industry is heavily regulated, and managing the environmental impact of production is critical. Alumina pumps help minimize the risk of spills and leaks that could contaminate the environment. By using efficient pumping systems, plants can better control waste disposal and meet environmental standards.

4. Supporting Large-Scale Production: Aluminum production is often carried out on a massive scale, requiring large quantities of alumina to be processed. Pumps are specifically designed to handle these large volumes efficiently. Whether transporting the slurry over long distances or managing the high Throughput of materials, these pumps ensure that production scales up smoothly and without bottlenecks.

Choosing the Right Alumina Pump

Given the importance of pumps in the production process, selecting the right model is critical. There are several factors to consider when choosing a pump for alumina transport:

• Durability and Material Selection: Since aluminum slurry can be abrasive and corrosive, selecting pumps made of durable materials such as high-grade alloys or rubber-lined parts is essential for longevity.
• Capacity and Flow Rate: The pump should be able to handle the required flow rate for the specific production needs of the plant.
• Energy Efficiency: Given the energy-intensive nature of aluminum production, selecting energy-efficient pumps helps reduce operational costs.
• Maintenance Needs: Opt for pumps that are easy to maintain and service, ensuring minimal downtime and continuous production.

Conclusion

Alumina Pumps designed for alumina play a fundamental role in the aluminum production process by ensuring the smooth and efficient transport of alumina from one stage to the next. Their ability to handle abrasive materials, maintain consistent flow rates, and withstand the harsh conditions of the industry makes them indispensable to the success of aluminum production plants. By selecting the right pump and ensuring its optimal maintenance, aluminum producers can significantly reduce costs, improve efficiency, and maintain high levels of production output.

In the dynamic world of aluminum manufacturing, keeping these pumps in top condition is more than just a matter of equipment choice—it's a key component of a successful, sustainable production process.

In industrial sectors where durability and efficiency are crucial, selecting the right equipment is vital. One such essential piece of equipment is the alumina pump, designed to handle abrasive, viscous, and sometimes caustic materials. These pumps are particularly important in industries dealing with raw materials like alumina, used in aluminum production. Understanding how these pumps work and why they are necessary for various applications can help businesses maintain smooth operations.

What Are Alumina Pumps?

Alumina pumps are specialized devices used to transfer alumina and similar abrasive materials. Alumina, a white, powdery substance derived from bauxite ore, is critical in the production of aluminum. The pumps are built to handle harsh environments, making them suitable for industrial processes where abrasive or corrosive materials need to be moved.

These pumps feature materials like stainless steel, ceramic, and corrosion-resistant alloys, which ensure they can withstand the demanding conditions often found in industries such as mining, chemical processing, and energy production.

Key Features of Alumina Pumps

The design and material composition of these pumps are what set them apart from standard pumps. Key features include:

1. Durability: Alumina pumps are constructed from materials resistant to both corrosion and wear, ensuring long-lasting performance even under extreme conditions. This durability is particularly important in industries where equipment faces harsh substances.

2. Abrasion Resistance: One of the main features of alumina pumps is their ability to handle abrasive materials, such as alumina itself. This is crucial for industries where other pumps might be prone to damage from abrasive slurries.

3. Efficiency: These pumps are engineered for high performance, offering efficient material transfer even under tough conditions. Their smooth operation helps improve productivity while reducing energy consumption.

4. Corrosion Resistance: Given that alumina and similar substances can be caustic, alumina pumps are built to resist corrosion, making them an ideal solution in environments where chemicals and abrasive materials are frequently handled.

Industrial Applications of Alumina Pumps

Alumina pumps are essential in several industrial processes where the materials being moved are particularly abrasive or corrosive. The following industries rely on these pumps for efficiency and safety:

1. Aluminum Production

The aluminum industry depends heavily on alumina for the production of aluminum metal. Alumina pumps are used to transport bauxite ore, alumina slurry, and other materials in aluminum refineries. These pumps ensure that materials are moved effectively from one stage of the process to the next while minimizing wear and tear.

2. Mining and Mineral Processing

In mining, alumina pumps are used to transport abrasive slurry throughout the mineral processing stages. Whether moving raw materials or refining them into usable products, alumina pumps provide a reliable solution for transferring materials that are rough and abrasive, preventing damage to standard pumps.

3. Chemical and Petrochemical Industries

The chemical industry often deals with harsh, corrosive substances. Alumina pumps help transfer caustic chemicals and abrasive materials without compromising the integrity of the system. They are ideal for industries that need to handle materials in both liquid and slurry forms, ensuring safe, efficient operation.

4. Power Generation

In power plants, especially thermal and hydroelectric plants, alumina pumps are used to transport abrasive slurries and wastewater. Their durability ensures that these pumps continue to function effectively even when handling materials like coal slurry, cooling water, or waste by-products.

5. Wastewater Treatment

Wastewater treatment plants often deal with sludge and slurry that contains abrasive particles. Alumina pumps are ideal for these environments, where they transport potentially hazardous or corrosive materials to treatment facilities. Their ability to handle abrasive waste helps maintain smooth operations and reduce downtime.

Why Are Alumina Pumps Essential?

Several factors make alumina pumps indispensable for certain industrial applications:

1. Longer Equipment Life: Alumina pumps are built to last, even in challenging environments. Their resistance to corrosion and abrasion reduces wear and tear, which extends the life of the equipment and minimizes maintenance needs.

2. Minimized Downtime: Efficient pumps are crucial for continuous industrial processes. Alumina pumps are designed to work efficiently under harsh conditions, reducing the risk of breakdowns and ensuring consistent operation.

3. Enhanced Safety: The ability of alumina pumps to safely transfer hazardous materials ensures worker protection. These pumps are designed to handle caustic and abrasive substances without risking leaks or spills, minimizing potential safety hazards.

4. Cost-Effectiveness: Although alumina pumps may have a higher upfront cost compared to standard pumps, their longevity and ability to minimize downtime make them a cost-effective solution in the long term. Businesses can avoid frequent replacements and maintenance costs, leading to better returns on investment.

5. Environmental Protection: In industries like chemical processing and mining, handling toxic or abrasive materials poses environmental risks. Alumina pumps help mitigate these risks by ensuring that materials are transferred safely without leaks or spills, contributing to environmental protection efforts.

Choosing the Right Alumina Pump for Your Needs

Selecting the right alumina pump for your industrial processes depends on factors like the material being transferred, required flow rates, and operating conditions. Understanding the technical specifications of the pumps available will help businesses make informed decisions, ensuring that their processes run smoothly and efficiently.

Conclusion

Alumina pumps are an essential piece of equipment in industries where the transfer of abrasive and corrosive materials is a routine task. Their durable design, resistance to abrasion and corrosion, and high efficiency make them indispensable for industries such as aluminum production, mining, chemical processing, and wastewater treatment. By choosing the right alumina pump, businesses can ensure safe, efficient operations, reduce downtime, and protect their bottom line, making these pumps a crucial component in many industrial applications.

Discover CSCERAMIC's High-Performance Silicon Carbide Tubing

Silicon Carbide Tubing, a key material for high-temperature applications, is manufactured through a series of sophisticated and complex process steps to ensure that the final product can meet the harsh requirements of extreme temperature conditions. As an industry leader, CSCERAMIC is committed to delivering superior silicon carbide tube products to the market through advanced manufacturing processes and high-quality material selection. This paper will deeply discuss the manufacturing process of CSCERAMIC silicon carbide tube, from the selection of raw materials to the quality control of the final product, and comprehensively analyze the mystery behind its high performance.

 

Raw Material Selection and Acheson Process for Silicon Carbide Tubing

The manufacture of CSCERAMIC silicon carbide tubes begins with the careful selection of high-purity raw materials. These raw materials are essential for the production of high-quality silicates. These selected raw materials are then fed into the Acheson reactor, where silica is combined with carbon at high temperatures to form silicon carbide. The Acheson process not only ensures the purity of silicon carbide, but also lays a solid foundation for the subsequent molding process.

 

Advanced Molding and Sintering Technology in Silicon Carbide Tubing

After the silicon carbide synthesis, CSCERAMIC uses advanced molding techniques, such as extrusion molding, to extrude the raw material through the mold into a continuous tubular structure. Extrusion molding is favored for its ability to produce pipes of uniform size with high precision. After forming, the tube enters the sintering stage, which is heated to high temperatures close to the melting point to increase its density and strength. This step is essential to improve the high temperature resistance of the silicon carbide tube, allowing it to remain stable in extreme environments.

 

Follow-up Treatment and Rigorous Quality Control of Silicon Carbide Tubing

After sintering, CSCERAMIC silicon carbide tubes are machined and surface treated to meet specific tolerances and surface quality requirements. These subsequent processing steps ensure that the pipe meets the specific requirements of its intended application. In the entire manufacturing process, CSCERAMIC implements strict quality control measures, from raw material inspection to finished product testing, every link follows industry standards and specifications to ensure the reliability and stability of product performance.

 

CSCERAMIC's advanced manufacturing process, strict quality control, and commitment to high purity raw materials successfully create superior performance silicon carbide tube products. These pipes not only have excellent high temperature resistance, but also excellent density and strength, and are widely used in a variety of high temperature environments. In the future, CSCERAMIC will continue to be committed to technological innovation and quality improvement, provide customers with more high-quality and reliable silicon carbide tube solutions, and promote the development and progress in the field of high-temperature materials.

Whether or not you are a college student or a workplace professional, activities related to excessive close up work on the computer are likely an integral part of your daily life. For example, staring at computer screens for prolonged periods of time discourages blinking. Staring leads to eye problems related to dry eye. If you are looking for a healthy natural alternative to relieve dry eye, a certain eye exercise technique involving fast blinking is a helpful natural remedy for this problem. An example of such a blinking eye exercise is called Flutter Blinking.

Here is a detailed description of how to perform the Flutter Blinking Technique: you can perform this technique by first keeping your eyes open and while your eyes are open, inhale deeply. Then, exhale and while you are exhaling you are going to blink your eyes at a rapid pace. It is beneficial to do at least 7 to 10 repetitions at a time.

Even though this technique may seem very simple and easy this doesn't mean that it is not effective. It actually works really well when practiced regularly. You can easily fit this routine in by practicing it at different intervals at your computer work desk as you take regular breaks from your close up work.

Here are some of the benefits of this blinking technique:

1 Relieves Dry Eye: This technique increases the eye's natural tear production therefore having a lubricating effect on the eyes. This helps in providing a natural remedy for dry eye.
2 Improve Eyesight: It increases your natural eyesight due to the fact that one of the keys to improving vision naturally is to relieve stress, tension and eye strain from the eyes. Due to the fact that it serves this purpose it benefits the visual system by increasing eyesight.
3 Relieves Eye Strain: It has a soothing effect on the eye muscles which also makes it an effective remedy for relieving eye strain when practiced on a regular basis.
Activities involving lots of close up work on the computer decreases blinking significantly; an activity that can lead to staring which in turn causes dry eye symptoms. The flutter blinking technique is an eye relaxation exercise involving fast blinking that can relieve dry eye naturally. Ultimately, the practice of this technique not only produces natural moisture in the eyes, but it has a soothing and relaxing effect on the eye muscles, thereby relieving dry eye and improving eyesight naturally.

Absolutely white, whites of the eye, is a myth. Veins in the eyes are and must be visible in healthy eyes. It is only when the red veins are dilated, the eye appears red. The drying up of lubricants and other protective fluids in the eye can cause irritation in the eye and result in unaccustomed redness and dilation of the veins in the eye. This makes the veins stand out on the whites of the eye giving the eye a reddish color.

Dry eye is also known as Keratoconjunctivitis sicca (KCS), or keratitis sicca, sicca syndrome, xerophthalmia, dry eye syndrome (DES), or simply dry eyes. This is an eye disease caused by decreased tear production or increased tear film evaporation from the eye commonly found in humans and some animals. Keratoconjunctivitis sicca is a Latin term that means “dryness of the cornea and conjunctiva”.

A good night’s sleep and repeated lubrication of the eye may not solve the problem, if the dry eye condition is a symptom of some deep rooted systemic problem.

What causes dry eyes? Environmental factors, aging, diseases such as the Sjogren’s syndrome or lifestyles could cause dry eyes. For instance people who constantly stare at the computer monitor without blinking can develop dry eyes over a period of time. Dry eyes could also be caused by obstructions in the tear ducts which reduces the amount of fluids that flow in to the eye.

What are the symptoms of dry eyes? A dry eye is a condition that normally does not produce any eye irritation and hence patients with dry eyes do not actually realize that they have a problem of dry eyes. Chronic dry eyes could result in pain in the eye, light sensitivity, constant gritty sensations, itching, redness and blurring of vision.

Sometimes, people with dry eyes may have excessive tears overflowing the eyes and running down the cheeks causing some confusion about the condition. However, this should be correctly interpreted as a distress signal that the eye is being deprived of lubrication and other protective fluids and is signaling the nervous system for compensation. The response is a flood of tears in the eyes. However, these tears tend to arrive too late and the eye needs to be treated and regenerated.

Diagnosis of dry eyes is done using routine clinical exams and other specific tests such as Schirmer test to determine how much moisture is present in the eye and the severity of the problem. Dyes such as fluorescein or rose Bengal are used to stain the eye surface and determine how much of the surface is dry. Another test that is often used is teat break up time test (TBUT) which helps doctors determine the time taken by the eye to respond with tears to foreign particles in the eye.

In several cases mild dry eye conditions can be set right by the use of preservative free lubricating drops in the eye. Chronic dry eyes are treated with artificial tear drops and ointments, temporary or permanent puntal occlusion, Restais, other medications using tropical steroids and surgery.

Welcome to science time! This article will discuss optical coherence tomography (OCT), an advanced technology widely used in eye examination, and introduce the basic principles and sequence of OCT image reading to help people better understand this convenient and non-invasive ophthalmic examination tool. Have you got the OCT image of the fundus, are you still worrying about how to interpret it?

Looking at the complex structure of the retina, are you still wondering where to start?

OCT, or Optical coherence Tomography, is a technique that uses the principle of light reflection to make microscopic images. It has the advantages of non-invasive, simple, rapid and accurate, and has become an important tool for the study of various fundus diseases. The principle of OCT film reading is based on the difference in optical reflection between different microscopic tissues. When the light shines on the surface of the tissue, a part of the light will be reflected back, and the internal structure of the tissue can be analyzed by detecting the reflection. In OCT images, the level of reflectance can be represented by color or gray scale, forming a false color or gray scale map.

When reading OCT, the following principles should be followed:
1. Before analyzing the light reflection characteristics of the tissue, it is necessary to first determine the way (false color or gray scale) of the OCT film to indicate the level of reflection.

2. Perform OCT image analysis in a certain sequence to ensure that no important information is missed.

3. Through qualitative and quantitative analysis, find out the changes of morphological structure and explore the reasons for the changes.

4. Combined with the patient's chief complaint, medical history, fundus color ultrasound, angiography and other examinations, the correct diagnosis was obtained after comprehensive evaluation.

OCT image reading can be performed in the following steps: general outline → structure of retinal layers (see the figure below) → choroidal layer → measurement of relevant data, paying attention to the symmetry of both eyes → comprehensive analysis to give a diagnosis.
The qualitative analysis includes morphological observation of the changes in the overall contour and structure of the retina, as well as based on reflexes
Quantitative analysis mainly measures thickness, volume and area.

Through the introduction of this article, I believe that everyone has a deeper understanding of the magic of OCT, let us look forward to the future development of OCT technology in the field of ophthalmology! Also welcome to contact us, we are Zhiding Medical Technology Co., Ltd.

Tel : +86-137 3544 0201
Email : sales@zd-med.com
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Diabetes is not diabetes caused by eating too much sugar. It occurs when the pancreas is no longer able to make insulin, or when the body cannot make good use of the insulin it produces. Sustained high blood sugar can cause serious diseases affecting the heart and blood vessels, eyes, kidneys, nerves and teeth. In addition, people with diabetes are at higher risk of developing infections. Diabetes is the leading cause of cardiovascular disease, blindness, kidney failure and lower limb amputations in almost all high-income countries.

Shockingly, 1 in 10 adults has diabetes. Almost half go undiagnosed.

Diabetic retinopathy is the leading cause of vision loss in adults aged 20-65 years. About one-third of people with diabetes have diabetic retinopathy, and one in 10 will develop the vision-threatening disease. About 70% of diabetic patients have systemic small blood vessel and microvascular disease

Diabetic retinopathy (DR) is one of the most serious complications of diabetic microangiopathy, and has become the leading cause of blindness among adult blind people in developed countries.

In my country, with the increase of diabetic patients, DR has increasingly become an important eye disease that endangers the eyesight of middle-aged patients. Therefore, it is very necessary for the elderly, especially those with diabetes, to check their fundus regularly.

According to the latest epidemiological data in 2020, the proportion of diabetic retinopathy (DR) among patients with type 2 diabetes in my country is as high as 30.1%, and women are especially at greater risk.

Diabetic retinopathy (DR) is the direct result of chronic high blood sugar that damages retinal capillaries, leading to leaky and clogged capillaries that can lead to vision loss and even blindness. Diabetes can also contribute to the development of eye diseases such as cataracts, glaucoma, refractive errors and double vision.
Diabetic retinopathy can lead to blindness, but for most patients, blindness is largely preventable. Diabetic retinopathy is usually asymptomatic in its early stages and requires regular eye examinations to judge the condition of the retina and give appropriate treatment in a timely manner.
Diabetic retinopathy is diagnosed and promptly referred to an ophthalmologist for treatment, laser photocoagulation and/or intravitreal injections can stop further vision loss and in some cases even improve vision if treated early .
When DR progresses to advanced disease (vision has been impaired), the treatment options are very limited, and advanced DR requires repeated treatments (such as laser photocoagulation or intravitreal injection of anti-vascular endothelial growth factor drugs), but the effect is often ineffective. Ideal, resulting in a heavy socio-economic burden. Therefore, it is of great significance to find out the risk factors that can help prevent the occurrence of DR and delay the progression of DR.

In 1991, Huang et al. of the Massachusetts Institute of Technology first used the developed OCT to observe the isolated human retina and optic disc.

 in 1995,it was officially used in ophthalmology. The initial clinical application of OCT is OCT1, with only 10 scanning procedures and 7 analysis procedures.

In 1997, the OCT2 scanning procedure was increased by 2 and the analysis procedure was increased by 4. In terms of retinal thickness measurement and RNFL thickness measurement, OCT2 has better repeatability, and the measurement of macular thickness has a variation value of <11μm.

In 2002, the appearance of Stratus OCT, namely OCT3, marked a new stage of OCT technology. OCT3 provided 18 scanning procedures and 19 analysis procedures, and the scan images of the macular area could identify more layers.

In 2006, frequency domain OCT appeared, faster scanning speed, higher resolution.

Our body is having blood that circulates throughout the body. It is the main part of our circulatory system. It carries hemoglobin, which is the only provider of oxygen to every cell of the body. But, due to various incidents, our body loses blood. We may face the accident, get an injury or have the low percentage of hemoglobin count in the body. In all these cases, transfusion plays a very important part. There are certain steps that both patients and doctors keep in mind during venipuncture. In the earlier days, the nurse directly takes the blood from the vein with the help of the needle. But, this process has lots of disadvantages.

A patient can face lots of problems when he or she is giving the blood. Moreover, when the patient is a small kid, he may move his hands at the time of vein puncturing. This creates lots of difficulties. Transfusion is difficult during some conditions when the patient is suffering from cancer, he is old, has shrinkage skin, he is restless, suffering from drug abuse, obese or he is a burn victim. Keeping in mind all these, the doctor should maintain some techniques to make the process successful.

1. The doctor suggests the patient not to eat heavy or drink alcohol while coming for transfusion. It is better not to drive the car alone while coming to the chamber. The patient should has constant calm mind when coming to the clinic.

2. When the patient comes in the clinic, he or she can sit quietly for some time to reduce the tension.

3. When the patient is ready, the nurse cleans the hands with gel cleanser or soap and water. This ensures no germ in the body.

4. The doctor does some of the special tests, and then the process of venipuncture is ready. The professional find the vein, but she punctures the vein with the help of the needle and draws the blood.

The use of the needle is becoming not as popular in these days as it is difficult to find the vein at times. One of the most effective ways to find the right place of the vein is by the help of a machine or the vein viewing system. There are various companies that offer this type of instrument for the doctors to make the process of venipuncture easier. This instrument is having lots of benefits as compared to the needle puncturing.

Godwin Moses is a reputed author and he writes various articles on medicine and various latest medical advancements. He suggests the doctors to use the right type of vein viewing system for the perfect blood transfusion.

Dry eye symptoms such as dry, irritated eyes, itchiness and burning, red eyes, can be quite annoying and distressing to many people. According to the American Academy of Ophthalmology, an estimated 3.2 million women age 50 and over and over 1.68 million men age 50 and over are affected by this eye condition. This condition also affects a smaller percentage of young people. If you are concerned about this eye problem, the good news is that certain changes incorporated into your lifestyle in terms of work habits, diet and drinking a lot of water, can reduce dry eye.

The risk factors for dry eye are generally associated with the following: age, gender,diet, work habits, environmental factors and climate. According to the American Optometric Association, in the case of dry eyes, the eyes do not produce a sufficient amount of tears to lubricate and nourish the visual system.

 Women are more prone to this eye condition due to the fact that hormonal changes in the body contribute to a decrease in tear production. Other risk factors include the excessive consumption of caffeinated beverages such as coffee,sodas, smoking, and excessive close up work at the computer. Individuals living in cold and winter climates are also prone to this eye problem.

If you feel that you have symptoms of dry eye syndrome, you need to go to the hospital for dry eye examination in time.