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Whether you’re left, right or ambidextrous, “handedness” is part of our identity. But a lot of people don’t realise that we have other biases too and they are not unique to humans. My colleagues and I have published a new study that shows aligning our biases in the same way as other people may have social benefits. Across different cultures, human populations have high levels of right-handedness (around 90%). We also have a strong population bias in how we recognise faces and their emotions. A significant majority of the population are faster and more accurate at recognising identities and emotions when they fall within the left visu...... Read Full article on HadNews

Myopia, or the need for corrected vision to focus or see objects at a distance, has become a lot more common in recent decades. Some even consider myopia, also known as nearsightedness, an epidemic. Optometry researchers estimate that about half of the global population will need corrective lenses to offset myopia by 2050 if current rates continue – up from 23% in 2000 and less than 10% in some countries. The associated health care costs are huge. In the United States alone, spending on corrective lenses, eye tests and related expenses may be as high as US$7.2 billion a year. What explains the rapid growth in myopia? I’m a vision ...... Read Full article on HadNews

Cataract surgery is one of the most popular and commonly performed procedures in the world. The vast majority of patients have excellent outcomes with few complications. Here are the numbers: As ophthalmologists who have performed thousands of these procedures, we know that many patients have misconceptions about both cataracts and the surgery. For example, some think a cataract is a growth on the eye’s surface. We like to compare a cataract with the frosted glass of a bathroom window, where light can be transmitted but details cannot. Or when turbulence from a storm causes normally clear water in the ocean to become murky. In mu...... Read Full article on HadNews

La pérdida de visión es una de las discapacidades más graves que una persona puede enfrentar, afectando todos los aspectos de su vida. Lo sorprendente es que el 80% de las causas de ceguera o disminución severa de la agudeza visual se pueden prevenir o tratar. El oftalmólogo Santiago González Virgili comparte su experiencia en la lucha contra la ceguera evitable. Realiza cirugías de cataratas, la primera causa de ceguera en el mundo, en áreas rurales de Argentina, devolviendo la visión a personas que han quedado ciegas por esta condición tratable. Además, proporciona anteojos a personas con problemas de refracción no corregidos, lo que les pe...... Read Full article on HadNews