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Refractive eye surgery, or vision correction surgery, are surgical procedures used to fix or improve the refractive state of the eye. It is a simple and safe alternative to glasses or contact lenses. There are various methods of this surgery, including surgical remodeling of the cornea, lens implantation, or lens replacement. Today, the most common method is using excimer lasers to reshape the curvature of the cornea. The cornea is the clear front part of the eye that lets light travel through and focus properly on your retina. Most of the refractive eye surgery can treat a range of very common vision problems, such as nearsightedness (myopia), farsightedness (hyperopia), as well as astigmatism.
Refractive eye surgery is not for everyone. In general, this procedure is appropriate for people with a moderate degree of refractive error and no unusual vision problems. The best candidate for this procedure is people who are at least 18 years of age and not pregnant or nursing. You should also make sure that you have a stable vision over the past year and have no history of active corneal disease or significant medical problems (such as corneal ulcers, diabetic retinopathy, and glaucoma). In some cases, a number of patients will still need to wear sunglasses in certain situations, for example when driving at night. To decide if this procedure is right for you and to determine which technique is most suitable for your condition, your eye surgeon will ask you detailed questions.
There are some cases in which refractive eye surgery is performed on children, usually on children who are cognitive or visual development is failing due to refractive error. Some examples where children will need refractive eye surgery are a bilateral high refractive error, anisometric amblyopia, anisometropia, or accommodative esotropia. However, refractive eye surgery for children involves other risks than for adults.
There are several types of refractive eye surgery. The following are some of the more common types.
In general, you are given either local anesthesia in the form of eye drops or general anesthesia. If you are given local anesthesia and you fear that you will be nervous, you can request a mild sedative to help you relax. Pediatric refractive eye surgery requires general anesthesia in order to avoid risks due to involuntary movement.
After the procedure, you need to stay in the hospital for a few hours to be monitored. You may go back to your hotel on the same day once the effects of the anesthesia wear off. Some procedures such as LASIK will only require you to stay in Brazil for 2 days, but other procedures will take longer, sometimes up to 7 days.
The recovery period is different depending on which type of procedure is being performed. For LASIK, a full recovery can take up to 6 months. However, you should be able to return to work within 1 week. The recovery time for PRK may be longer than that. In general, the recovery time is painless and quick with only slight discomfort. It is common to feel some soreness and your eyes may feel a little watery. Most people can immediately see significant positive results after the first few days after the procedure.
Follow-up checkups are very important because it allows your surgeon to determine your eye health and when you will be able to drive or use gadgets. Your surgeon will likely give you detailed aftercare instructions and there might be several restrictions that you must obey during your recovery period. Try to avoid having a shower immediately after the procedure. You will also need to reduce the chances of exposing your eyes to irritation for the first week. Do not apply any products around your eye, get soap or water in your eyes or wear eye makeup. Avoid being around people who smoke as smoke can irritate your eyes. You should also avoid rubbing your eyes as it can cause severe discomfort and increase the risk of complications. It is advised to do some exercise within three days of your surgery, but you should avoid yoga, aerobics, as well as strenuous exercises and sports such as weight lifting, football, or tennis.
The success rate for refractive eye surgery is exceptionally high and your result depends on several factors, including your refractive error. People with mild nearsightedness usually have the most success, while people with a high degree of nearsightedness, farsightedness, or astigmatism have less predictable results. According to studies, 95% of nearsighted patients who undergo LASIK achieve improved vision after recovery.
It is important to be aware that refractive eye surgery also possesses some potential risks and complications, including under correction or overcorrection, excess corneal haze, regression, halo effect, flap damage or loss, worse vision, as well as infection and delayed healing
Refractive eye surgery is still the best way to treat common vision problems. Nevertheless, people who do not want to undergo surgery can have conventional reading glasses, varifocals, multifocal, or bifocals to focus the top half of the glasses for distance and the lower half for reading. Contact lenses can also be used to create a multifocal cornea.
Whilst the information presented here has been accurately sourced and verified by a medical professional for its accuracy, it is still advised to consult with your doctor before pursuing a medical treatment at one of the listed medical providers
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Occupying the title of the largest country in South America, Brazil embraces a diverse population of over 209 million people. The nation is globally renowned for its passion for football (also referred to as soccer in some parts of the world) and their dynamic, flamboyant carnival traditions, boasting a vibrant mix of music, dance, and colorful attire.
In addition to its vivacious culture, Brazil is a sanctuary of spectacular natural beauty. The country nurtures some of the world's most stunning natural wonders, including the dramatic Iguacu Falls and the world's largest tropical rainforest, the Amazon Rainforest, teeming with diverse plant and animal species. One can't miss the landmark figurine of Christ the Redeemer in Rio de Janeiro that towers 98-feet high, becoming a symbol of Brazil's deep-rooted religious faith and an iconic sight that captures hearts worldwide.
Brazil offers more than 60 JCI-accredited facilities and is one of the leading destinations in the world for cosmetic surgery, with Refractive Eye Surgery procedures being especially popular. Doctors are often Western-trained and speak English on top of Portuguese and Spanish. Local accreditations include the Consortium of Brazilian Accreditation and the Brazilian Hospital Medical Quality Organization (ONA). Popular locations within Brazil include the capital Brasilia, Rio de Janeiro, Sao Paulo, and Curitiba.
As a large country, the weather in Brazil varies from tropical in the north to temperate in the south. A large part of the country lies in the topics. Brazil is a year-round destination because it has a steady average annual temperature. The temperature rarely drops below 20 °C.
Winter in Brazil starts in May and ends in September. The weather remains tropical in the north with an average temperature ranging between 20 °C to 30 °C. In Rio de Janeiro, the temperature varies between 14 °C to 25 °C. However, the evenings usually feel a lot colder.
During this particular season, one can expect a fair amount of rainfall in Rio, leading to many wet and rain-soaked days. If you plan a visit at this time, it's wise to keep that in mind and prepare accordingly. In contrast, further inland, São Paulo experiences significantly cooler temperatures compared to Rio, reflecting the country's vast geographical expanse and diverse microclimates spread across its regions.
This temperature drop might require some warm clothing, especially during late evenings and nights. So, whether you wish to enjoy the rainy murmur in Rio or seek the cool retreat of São Paulo, there's something unique for every traveler in Brazil during this season.
The temperature in Rio rise between November and March, with the highest temperature of around 40 °C but with a thermal sensation of around 50 °C. The Rain rarely lasts long during these months. In the north of Brazil, the rainy season starts in December. March and May see the heaviest rainfall. It’s hot and humid with frequent rain throughout the year in the Amazon.
The most popular international airports are Rio de Janeiro–Antonio Carlos Jobim International Airport (popularly known as Galeão International Airport) and São Paulo/Guarulhos–Governador André Franco Montoro International Airport. Both airports serve domestic and international flights to many cities around the globe. The airports mainly serve major airlines but there are budget airlines such as Norwegian Air UK. Tourists can take taxis, bus, train, or car rental from both airports to the city centers.
Brazil is really big, so there will be a lot of long-distance travel to get around the country. The easiest and fastest way to get from one city to another is by domestic flights. The only downside is that the tickets are very expensive. LATAM and GOL Airlines offer multi-trip tickets or air pass. The most economical option is to buy an air pass if you plan to visit a number of different cities.
Buses are popular in Brazil, servicing most areas of the country. The bus system is excellent and provides a comfortable and economical way of travel. Be aware that the distance can be really tiring and overwhelming; some trips can take over 40 hours. The buses are operated by hundreds of different private companies, but the price is standardized. The fare varies from 75 BRL to 240 BRL. There are luxurious buses too.
A good way to get around major cities like São Paulo and Rio is to use Brazil Metro (subway). The fares are around 3.50 BRL to 3.80 BRL. You can purchase rechargeable travel cards. The metro does not operate at night. Be sure to watch your belongings at all times when traveling on the metro.
Taxis run on a metered system, but if you travel a bit further out of town, you need to negotiate the price with the driver. It is best to phone for a taxi or pick one up at a taxi station and make sure to get into a licensed taxi. Ferries and other water travel are important in many parts of Brazil.
Nationals of 72 countries and territories can enter and stay in Brazil for up to 90 days without a visa. In some cases, an identity document may be accepted instead of a passport. Citizens of other countries, including China and India, must apply for and obtain a visa before entering Brazil. It is recommended to contact the nearest Brazilian embassy or consulate for the most up-to-date visa information.
Brazil offers an electronic visa (e-Visa) for citizens of eligible countries. The e-Visa is valid for two years and allows multiple entries for stays of up to 90 days per year. Applicants can apply for the e-Visa online through the Brazilian government's website.