¿Estas gotas para leer pueden reemplazar a los anteojos?

[This article is also available in English. Thanks to Pensar for this Spanish translation.] Vuity es un nuevo colirio que se vende bajo receta. Un artículo de Scientific American dice: “Estas gotas podrían reemplazar sus anteojos para leer”. ¿Podrían realmente? ¿Como puede ser? ¿Realmente funcionan? Más o menos, más o menos… para algunas personas… durante unas horas…

Can These Eyedrops Replace Reading Glasses?

[Este artículo está disponible en español. La traducción al español apareció por primera vez en la revista Pensar.] You’ve probably seen the ads. Vuity is a new prescription eyedrop. An article in Scientific American says, “These drops could replace your reading glasses.” Could they really? How can that be? Do they really work? Kind of, sort of …

Eye Drops for Dry Eyes

I could have chosen a prescription eye drop for my dry eyes. I decided not to. Here’s why. Dry eyes can have many causes: disease, medications, environmental irritants, or just age. Tear production tends to decrease as we get older. My husband (age 80) and I (age 75) were both diagnosed with dry eyes by

A Pattern of Deceptive Video Ads for Supplements

I’ve been seeing a pattern of deceptive videos that promise to reveal a secret but make you watch the entire video to learn what it is. They feature alarmist stories, emotional language, and testimonials, but no actual science. They make claims that can’t be believed. Glasses are an effective remedy for decreased vision, not a

Blue Light

Blue light blocking glasses and other products that block blue light promise to improve eye health along with many other questionable claims. The evidence is lacking. Blue light is part of the spectrum of sunlight. Other sources include digital screens (TVs, computers, laptops, smart phones and tablets), electronic devices, and fluorescent and LED lighting. We

Visual Stress

The Opticalm Clinic claims to diagnose and treat visual stress with colored lenses and other aids. Visual stress is a poorly defined, questionable condition and Opticalm’s claims are not backed by scientific evidence. What does “visual stress” mean? It appears to be a new term for what has also been called Irlen syndrome (described by Steve Novella

A Test For Earlier Diagnosis Of Autism? Not Convincing

[Este artículo está disponible en español. La traducción al español apareció por primera vez en la revista Pensar.] Autism is diagnosed on clinical grounds by observing the child’s behavior. There is no blood test or any other objective test to diagnose it. But that hasn’t stopped people from claiming to have found one. Among other

¿Test para un diagnóstico temprano de autismo? No es convincente

[This article is also available in English. Thanks to Pensar for the Spanish translation.] El autismo se diagnostica por motivos clínicos al observar el comportamiento del niño. No existe un análisis de sangre ni ninguna otra prueba objetiva para diagnosticarlo. Pero eso no ha impedido que la gente afirme haber encontrado uno. Entre otros candidatos,

Stem Cells for Macular Degeneration: Meticulous Science vs. Unethical Carelessness

Age-related macular degeneration (AMD) is a major cause of vision loss in people over 50. Thirty percent of us will develop it by age 75-85. There is no cure. For the 10% of patients with wet AMD there are several mainstream treatments that can slow progression of the disease, including drugs injected into the eye,

Acupuncture for Macular Degeneration: Why I Reject the Evidence

This post is dedicated to two people who are frequent commenters on SBM, Stephen S. Rodrigues and Peter Moran. Rodrigues is an MD/acupuncturist who tries to persuade us that acupuncture is effective. Moran is a retired surgeon who objects to insulting language and thinks more can be accomplished by trying to better understand why people

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