Want to Work in Space? - Squinters Can Now Apply Poor eyesight has long been the bugaboo of many aspiring astronauts, disqualifying more would-be space travelers than any other physical requirement since the beginning of the U.S. astronaut program in 1959. Now, nearly a half-century after the program began, NASA is loosening its vision standards, allowing more men and women to reach for dreams of flying into space. As it kicked off recruitment of the 2009 candidate class this week,…
When it comes to choosing the right laser eye surgery, understanding the differences between LASIK and SMILE is crucial. Both procedures offer significant improvements in vision, but they differ in techniques, recovery times, and suitability for different eye conditions. This article explores the nuances of LASIK and SMILE eye surgery, providing detailed comparisons, answering common questions, and helping you make an informed decision. Understanding LASIK What is LASIK? Laser-Assisted In Situ Keratomileusis (LASIK) is a popular laser eye surgery that…
When it comes to vision correction surgery, two of the most popular options are PRK (Photorefractive Keratectomy) and LASIK (Laser-Assisted In Situ Keratomileusis). Both procedures aim to improve vision by reshaping the cornea, but they have distinct differences that make them suitable for different types of patients. This guide delves into the intricacies of PRK and LASIK, helping you understand their pros, cons, and suitability for your needs. Understanding PRK and LASIK What is PRK? PRK, or Photorefractive Keratectomy, was…
If you're considering LASIK surgery, you might wonder if you're a suitable candidate. A LASIK self-test is a preliminary online assessment that can provide insights into your eligibility for the procedure. This article will explore the various aspects of a LASIK self-test, its importance, and how it works. By the end, you'll have a comprehensive understanding of this valuable tool. What is a LASIK Self Test? A LASIK self-test is an online questionnaire designed to help you determine whether LASIK…
Photophobia, also known as light sensitivity, is a condition where an individual experiences discomfort or pain in the eyes due to exposure to light. This condition can range from mild discomfort to severe pain and is often associated with various medical conditions. This comprehensive article explores photophobia, its causes, symptoms, diagnosis, and treatment options, focusing on its medical aspects. What Causes Photophobia? Medical Conditions Several medical conditions can lead to photophobia. These include: Migraines: Migraines are a common cause of…
Light sensitivity, or photophobia, can significantly impact daily life. Understanding and managing this condition is essential for maintaining comfort and eye health. In this article, we will explore various methods to alleviate light sensitivity, including practical tips, medical treatments, and preventive measures. Understanding Light Sensitivity Light sensitivity occurs when your eyes are overly sensitive to light. This can result from various causes such as eye strain, certain medical conditions, and even certain medications. Symptoms include discomfort in bright light, headaches,…
Add-on eye prescriptions, also known as supplementary prescriptions, are additional corrective lenses or adjustments to an existing eye prescription. These prescriptions are often necessary for individuals with specific vision needs that cannot be fully corrected with standard single prescriptions. Add-on prescriptions can enhance visual clarity, address multifocal needs, or provide additional correction for astigmatism, presbyopia, or other complex vision issues. Understanding Add-On Eye Prescriptions Add-on eye prescriptions are tailored adjustments that complement an existing prescription. They are commonly used in…
Hazel eyes are often regarded as one of the most captivating and enigmatic eye colors. They feature a blend of brown, green, and gold hues that can change appearance based on lighting and surroundings. This article delves into the prevalence of hazel eyes, their unique characteristics, and the genetic and environmental factors contributing to their rarity and beauty. Understanding Hazel Eyes Hazel eyes are characterized by their complex coloration, typically including shades of brown, green, and gold. The central part…
Glasses are an essential part of many people's lives, providing the clarity needed for daily activities. However, as prescriptions change and styles evolve, many are left wondering what to do with old glasses. Instead of letting them gather dust in a drawer, consider the many ways they can be repurposed, donated, or recycled. Donating Old Glasses One of the most impactful ways to deal with old glasses is to donate them. There are numerous organizations and programs dedicated to collecting…
Sleeping with contact lenses in your eyes can have serious consequences. While it might seem harmless, especially if you accidentally fall asleep with them once in a while, the risks to your eye health are significant. Let's dive deep into what happens when you sleep with contacts and why it's crucial to avoid this habit. Why Sleeping with Contacts is Risky Oxygen Deprivation Contacts limit the amount of oxygen reaching your corneas. When you sleep, this oxygen supply is further…