The decision between wearing prescription sunglasses or contact lenses depends on your personal preferences and lifestyle. If you prefer the convenience of not having to switch between glasses and sunglasses, contact lenses may be a better option. However, if you have sensitive eyes or prefer not to wear contact lenses, prescription sunglasses can provide protection from the sun while correcting your vision. It's best to consult with your eye care provider to determine which option is most suitable for your needs. **

Optical glasses can be converted into sunglasses by adding tinted lenses to the frames. These tinted lenses can be either prescription or non-prescription, depending on the wearer's needs. The tinted lenses can provide UV protection and reduce glare, making them suitable for outdoor activities. Some optical shops offer the option to customize existing frames with tinted lenses, allowing for a seamless transition from regular glasses to sunglasses. **

No, Russia does not extradite North Korean refugees to North Korea. Russia is a signatory to the 1951 Refugee Convention and its 1967 Protocol, which prohibits the refoulement of refugees to their home country where they may face persecution. As a result, Russia generally provides protection to North Korean refugees and does not send them back to North Korea. However, the situation for North Korean refugees in Russia can still be difficult, as they often face challenges in obtaining legal status and may be at risk of deportation to third countries. **

Polarized lenses in sunglasses are designed to reduce glare from surfaces such as water, snow, and roads. They contain a special filter that blocks intense reflected light, allowing only vertical light to pass through. This helps to enhance visibility and reduce eye strain, making them particularly useful for outdoor activities such as driving, fishing, and skiing. Polarized lenses are also effective in reducing the harmful effects of UV rays, providing added protection for the eyes. **

The North Sea is not called the North Ocean because it does not meet the criteria to be classified as an ocean. Oceans are larger and deeper bodies of saltwater that cover a significant portion of the Earth's surface, while the North Sea is a relatively small and shallow sea located between the United Kingdom, Norway, Denmark, Germany, and the Netherlands. Additionally, oceans are typically separated by continents, while the North Sea is connected to the Atlantic Ocean. Therefore, the North Sea is appropriately named a sea rather than an ocean. **

The main difference between daily, monthly, and yearly contact lenses is their replacement schedule. Daily contact lenses are designed to be worn once and then discarded, making them convenient and hygienic. Monthly contact lenses are meant to be worn for up to 30 days before being replaced, while yearly contact lenses can be worn for up to a year with proper care and cleaning. Each type of contact lens has its own advantages and considerations, such as cost, convenience, and maintenance requirements. **

North Africans are a diverse group of people with a range of ethnicities and skin tones. While some North Africans may have darker skin and identify as black, others may have lighter skin and identify as white or another race. It is important to recognize that race is a social construct and can vary depending on cultural and historical contexts. Ultimately, it is up to individuals to self-identify their race and ethnicity. **

The choice between Allgäu and the North Sea depends on personal preferences and interests. Allgäu, located in southern Germany, offers picturesque landscapes, charming villages, and outdoor activities such as hiking and skiing. On the other hand, the North Sea, located in northern Germany, provides a different experience with its coastal scenery, sandy beaches, and opportunities for water sports and relaxation by the sea. Ultimately, the decision between Allgäu and the North Sea will depend on whether you prefer mountainous regions or coastal areas for your vacation. **