Education Corner

What is cataract? Is not seeing things clearly a sign of cataract?Cataract is the gradual clouding of the lens inside the eye.   Why do I have cataract?There are many causes for cataract formation, including genetic and congenital factors. Other causes such as trauma, inflammation, metabolic diseases, and medications can also lead to cataract. However, cataract is most common in the elderly due to aging, as the lens gradually deteriorates, hardens, and becomes cloudy. Diseases like diabetes can also cause cataract to appear earlier. Although cataract is less common in younger populations, those with habits like smoking or drinking, high myopia, diabetes, long-term use of corticosteroids, prolonged sun exposure, or chronic iritis may develop cataract earlier than average.   Is not seeing things clearly a sign of cataract?Common symptoms include gradually blurred vision, sometimes seeing halos around lights, and colors appearing less vibrant. When driving at night, headlights from oncoming cars may seem glaring and uncomfortable. Generally, the worsening of symptoms is quite slow and depends on the location of the cloudiness in the lens and its progression.   Early-stage cataract patients may not have any signs, but as the condition worsens, patients may notice: Blurred vision Decreased contrast in images Yellowish or darkened views Unstable or suddenly worsening myopia Halos around lights at night, with light points spreading into a ring or radiating hexagonal rays.   Is surgery the only treatment for cataract?As of now, the medical field has not developed effective medications to stop cataract growth. The primary treatment method is surgical removal of the cloudy lens. The most common technique today is "minimally invasive" cataract surgery, which typically takes 10-15 minutes and is mostly performed under local anesthesia. Femtosecond Laser-Assisted Cataract SurgeryThis technique uses ultrasound to break up and remove the cataract (phacoemulsification), and then an artificial lens is implanted in its original position. The benefits are minimal incisions, and most cases do not require stitches. Once the surgery is completed, the doctor ensures the incision is secure, applies ointment, and the patient can go home. Artificial LensAfter cataract surgery, patients often opt for an artificial lens implant in the eye. Most patients can restore vision without needing additional lenses. However, the risk of postoperative complications, such as inflammation and glaucoma, slightly increases. Additionally, if there are other eye diseases, such as high myopia or iritis, it may not be suitable to implant an artificial lens.   How should I care for my eyes after cataract surgery?In the initial recovery period after cataract surgery, it is important to rest in bed, ensuring the head and eyes get adequate rest to avoid affecting the surgical outcome. During recovery, consume nutritious and easily digestible foods. Eat plenty of fruits and vegetables to prevent constipation. Alcohol and irritating or hard foods should be avoided. Be careful to prevent water from entering the eyes while washing hair. Use medications as prescribed by the doctor and attend follow-up appointments until fully healed.

Understand about Macular degeneration Among common eye diseases, most people may have heard of cataracts and glaucoma, but are less familiar with age-related macular degeneration (AMD). “Macular degeneration,” “glaucoma,” and “cataracts” are the world’s three leading causes of blindness. With an aging population, the number of people suffering from AMD continues to rise, and in many countries, it has even become the leading cause of blindness among people aged 55 and above. As the saying goes, “Prevention is better than cure.” Let’s learn more about this condition to better protect our “windows to the soul.”   What is Macular Degeneration? The structure of the eyeball is similar to that of a camera. The pupil at the front of the eye works like a camera aperture, allowing light to enter. The lens focuses the light and projects it onto the retina. The retina functions like film—it receives light and converts it into images sent to the brain. Because the macula is located at the center of the retina, where photoreceptor cells are densest, it plays a vital role in vision. Many daily activities depend on central vision, such as reading, writing, recognizing faces, and driving.   What is Age-related Macular Degeneration (AMD)? Age-related macular degeneration (AMD) is a degenerative disease of the central retina (macula) caused by aging, damaging the macula’s photoreceptor cells and impairing central vision.AMD can be classified into two types: dry and wet. Dry AMDIn dry AMD, yellowish deposits called drusen accumulate under the retina in the retinal pigment epithelium (RPE). These deposits are waste materials excreted by photoreceptor cells and can disrupt their function, leading to gradual degeneration. Most early-stage patients have few or no noticeable symptoms, and vision loss tends to progress slowly. However, the condition should not be ignored, as it can develop into the more severe wet AMD. Wet AMDIn wet AMD, abnormal blood vessels grow under the retina in the macula. If these vessels rupture, they can cause bleeding and scarring, damaging photoreceptor cells. This form progresses quickly and can severely impair central vision—sometimes permanently destroying sight in the center of the field.Wet AMD can cause marked vision loss within as little as three months, or even within days in extreme cases. If sudden changes in vision occur, one should consult an ophthalmologist immediately without delay. Why Do I Have AMD? Multiple factors contribute to AMD development, but age is the strongest link—the older you are, the higher your risk. Studies show that smoking is associated with AMD progression, while quitting smoking can reduce risk. Genetics also play a role; those with close family members suffering from AMD are at higher risk. Other potential risk factors include diets high in saturated fats and cholesterol, hypertension, cardiovascular disease, and excessive sunlight exposure.   How Can I Check If I Have AMD? To diagnose AMD, in addition to routine vision and anterior segment checks, doctors will dilate the pupils to examine the back of the eye with an ophthalmoscope to assess the location, extent, and type of lesions.For precise classification, patients may undergo Fundus Fluorescence Angiography (FFA) or Indocyanine Green Angiography (ICGA), both of which involve injecting a dye into the bloodstream to observe retinal blood vessels.Another non-invasive test is Optical Coherence Tomography (OCT), which uses laser and light imaging to analyze the retinal and macular layers in detail.Besides professional exams, the Amsler grid test is a quick and simple self-assessment tool for detecting macular changes.   What Are the Treatment Options for AMD? Photodynamic Therapy (PDT)PDT combines medication with laser treatment. The patient receives an injection of a light-sensitive drug into the arm. This drug circulates through the bloodstream and binds to the abnormal blood vessels under the retina. The ophthalmologist then uses a low-energy (cold) laser to activate the drug, destroying the abnormal vessels and slowing vision loss. Studies show PDT can reduce the risk of significant vision decline and, unlike laser coagulation therapy, does not harm surrounding healthy tissue. Intravitreal Injection of Anti-VEGF DrugsThis is the current gold-standard treatment for wet AMD. Anti-VEGF (vascular endothelial growth factor) drugs block factors that promote abnormal blood vessel growth, reducing leakage and bleeding. Studies have shown that over 90% of patients receiving anti-VEGF injections maintain stable vision, and nearly one-third experience improvement. Because abnormal vessels may regrow, repeated monthly treatments are often needed until vision, macular thickness, and leakage are controlled. Intravitreal Injection of SteroidsSteroid injections can reduce damage to the blood-retinal barrier (BRB). The procedure must be carried out under sterile conditions with topical anesthesia and infection prevention measures in place. Laser Photocoagulation TherapyUsing laser heat, this treatment destroys abnormal fragile blood vessels under the retina, sealing and preventing further leakage, bleeding, or swelling. Because the laser can also damage nearby cells, it is only suitable for cases where the abnormal vessels are located away from the macular center. Otherwise, treatment could harm central tissues and cause vision loss.

SMILE (Small Incision Lenticule Extraction) and SMILE PRO are popular laser vision correction methods. What are the differences between SMILE and LASIK? Do you know their principles? In this episode, ophthalmologist, Dr. Mo Chui Yuk, Jennifer wll share the procedure of SMILE/SMILE PRO surgery in detail with everyone. If you want to know if you are suitable for SMILE laser vision correction, welcome to make an appointment at PolyEYE for an a preoperative examination!   ✉️For more eye-related information, feel free to inbox us with your inquiries. For information on service fees, you can contact us via WhatsApp at 6670 5910 or directly click the following link: https://wa.me/85266705910 to contact our customer service. ✉️For more details, you can also visit:  https://www.polyeye.com.hk

In the previous episode, we introduced the process of SMILE surgery. In this episode, we will discuss the preparations before and after the surgery, including the questions you are most interested in: How much time should be reserved on the day of the surgery? Can contact lenses be worn before and after the surgery? Can you use a phone, play computer games, and watch TV after the surgery? Can you return to work immediately the next day? In this episode, ophthalmologist, Dr. Mo Chui Yuk, Jennifer will provide a simple explanation for you, allowing you to understand in the shortest possible time and have a clear understanding after watching!   ✉️For more eye-related information, please feel free to inbox us for inquiries. For information on service charges, you can contact us via WhatsApp at 6670 5910 or directly click the following link: https://wa.me/85266705910 to contact our customer service. ✉️For more details, you can also visit: https://www.polyeye.com.hk

In fact, cataract surgery is not scary at all. Compared to traditional surgical methods, modern cataract surgery is precise, safe, simple, and does not require hospitalization. The surgery time is extremely short! However, the care before and after the surgery is crucial. Do you know what you need to pay special attention to? After watching this episode featuring by ophthalmologist, Dr. Mo Chui Yuk Jennifer, you will be able to quickly understand the important precautions and common questions regarding cataract surgery before and after the surgery   ✉️For more eye-related information, feel free to inbox us for inquiries. You can also inquire about service fees through WhatsApp: 6670 5910 or directly click the following link to contact customer service: https://wa.me/85266705910 ✉️For more details, you can also visit: https://www.polyeye.com.hk

Having cataracts is not scary, and cataracts are not an incurable condition! With advanced technology today, the latest minimally invasive ultrasonic surgery can treat cataracts in just 10 minutes, resulting in improved vision! Are you eager to learn more? Then you should watch this episode, featuring by ophthalmologist, Dr. Mo Chui Yuk, Jennifer who will explain the principles, procedures, precautions, and more about cataract surgery in a simple and understandable way.   ✉️For more eye-related information, feel free to inbox us for inquiries. You can also contact our customer service via WhatsApp at 6670 5910 or click on the following link directly: https://wa.me/85266705910. ✉️ For more details, you can also visit: https://www.polyeye.com.hk.  

Presbyopia and cataracts are commonly heard terms, but how much do you know about them? What are the similarities and differences between the two, and why is it named as cataracts? Most cataract patients are 60 years old or above, does that mean younger people won't have these issues?   In this episode, ophthalmologist, Dr. Mo Chui Yuk, Jennifer will give you a brief introduction to the basic knowledge of presbyopia and cataracts with 2 minutes.   Cataracts can cause vision decline and problems such as double vision, glare, eye pain, or severe headaches, which can affect daily life and work. If you notice these symptoms, it is important to seek medical attention and receive early treatment.   ✉️For more information about ophthalmology, feel free to inbox us for inquiries. The fees for various services can be discussed via WhatsApp at 6670 5910 or by clicking the following link: https://wa.me/85266705910 to contact our customer service. ✉️For more details, you can also visit: https://www.polyeye.com.hk

ICL implantable contact lens surgery is safe, simple, and quick, but do you know the principle behind it? How is the entire process done? What are the conditions and precautions to be aware of before undergoing this surgery?   If you want to know what preparations need to be made before and after the surgery, in this episode, ophthalmologist, Dr. Mok Chui Yuk Jennifer will explain everything to you, so you'll understand it immediately after watching.   ✉️For more eye-related information, feel free to inbox us for inquiries. You can also contact our customer service through WhatsApp at 6670 5910 or click the following link directly: https://wa.me/85266705910.   ✉️For more details, you can also visit: https://www.polyeye.com.hk.

In most people's minds, it seems like wearing glasses is necessary for presbyopia, but that's not always the case!   We understand that not everyone likes wearing glasses, and in this episode, we will share two alternative methods for managing presbyopia without glasses. Want to know what these methods are and who can benefit from them? Then you should pay attention to the sharing from ophthalmologist, Dr. Mok Chui Yuk, Jennifer!   ✉️For more eye-related information, feel free to inbox us for inquiries. You can also inquire about service charges via WhatsApp at 6670 5910 or simply click the following link https://wa.me/85266705910 to contact our customer service directly.   ✉️For more details, you can also visit: https://www.polyeye.com.hk  

Do you often see black shadows or transparent floating objects of different shapes? If so, you may be experiencing symptoms of floaters! Did you know that floaters can be either benign or malignant? What are the causes of floaters? Can they be cured? What are the current treatment methods available? Who should pay special attention to floaters?   For patients with severe floaters, delaying medical treatment can potentially lead to retinal detachment. Let's watch the episode featuring by ophthalmologist, Dr. Mok Chui Yuk, Jennifer to learn more.   ✉️For more information on ophthalmology, feel free to inbox us. For service fees and inquiries, you can contact us via WhatsApp at: 6670 5910 Alternatively, you can directly click on the following link to contact our customer service: https://wa.me/85266705910   ✉️ For more details, you can also visit: https://www.polyeye.com.hk

Dry Eye Syndrome is a condition that most people are familiar with, and in general, it can be relieved with eye drops. However, severe cases are not easily resolved and can potentially lead to corneal ulcers and scarring, resulting in permanent vision damage.   Given this, how much do you know about Dry Eye Syndrome? Some lifestyle habits can worsen the condition. Are you aware of which habits contribute to it? Is there a cure for Dry Eye Syndrome?   In this episode, ophthalmologist, Dr. Mo Chui Yuk, Jennifer will explore the causes and treatment methods of Dry Eye Syndrome. If you have been troubled by Dry Eye Syndrome for a long time and it affects your daily life, we recommend visiting our clinic, POLYEYE, for a comprehensive examination.   ✉️For more eye-related information, feel free to inbox us with your inquiries. You can also contact our customer service directly via WhatsApp at 6670 5910 or by clicking on the following link: https://wa.me/85266705910.   ✉️For more details, you can also visit: https://www.polyeye.com.hk.

Many people are aware that myopia can be corrected through vision correction, but they often wonder about the specific methods used. Additionally, many people have heard that vision correction can affect eye health, so is it true?   We prepared a series of educational videos where ophthalmologists provide answers to various eye-related questions, allowing you to quickly understand various eye-related information. In this episode, ophthalmologist Dr. Mok Chui Yuk, Jennifer will briefly explain the questions regarding vision correction.     ✉️ For more eye-related information, feel free to inbox us with your inquiries. For service charges, you can contact us via WhatsApp at 6670 5910 or directly click the following link: https://wa.me/85266705910 to contact our customer service.   ✉️ For more details, you can also visit: https://www.polyeye.com.hk

Everyone has a macula, but not everyone's macula is normal. Macular degeneration can lead to blindness, and early prevention and treatment are the only ways to save vision!   In this episode, ophthalmologist, Dr. Mo Chui Yuk, Jennifer will not only introduce the macula but also explain the symptoms, types, high-risk individuals, and treatment methods of macular degeneration.   ✉️For more ophthalmic information, feel free to inbox us. For service charges, you can contact us via WhatsApp: 6670 5910 or directly click the following link: https://wa.me/85266705910 to contact customer service.   ✉️For more details, you can also visit: https://www.polyeye.com.hk