King Charles I's Royal Charter of the Worshipful Company of Spectacle Makers
King Charles the First

How did King Charles the First's charter play a role in Optometry? Let's look deeper at King Charles I's royal charter of the Worshipful Company of Spectacle Makers and how it impacted the field of optometry.

Daza de Valdes and The First Book of Optometry
Daza de Valdes

Born in 1591 in the city of Cordoba, Spain, Valdes grew up craving knowledge. He graduated from the University of Seville in 1616 with a Bachelors of Arts and Philosophy and became a scholar of natural philosophy and medicine.

Willebrord Snell and His Law of Refraction
willebrord snell

Willebrord Snell was in fact the first person to document the relationship between the paths taken by light rays when crossing boundaries between two surfaces and their refractive index.

Presbyopia Symptoms, Causes and Treatments

Presbyopia is a very common vision disorder impacting approximately 3 million people in the US alone. However by consulting with an eye care professional and following their suggested treatment option a person can significantly reduce the life impact of the disorder.

Johannes Kepler
Johannes Kepler

In 1604 Kepler wrote a book titled Astronomia Pars Optica, earning him the title of founder of modern optics. It was in this book that he documented his observations, experiments and formulas accurately depicting the process of refraction within the eye.


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