Corneal asymmetry vector can identify eyes that are most in need of monitoring during orthokeratology treatment.

Thanks to the internet, it’s easy to browse, customize and (virtually) try on prescription glasses online without taking a trip to the optometrist’s office. After evaluating several options, I ...

As a contact lens-wearer for nearly two decades, I’ve learned that purchasing contacts online is both cheaper and more convenient than buying them at the optometrist’s office. Having purchased ...

Independent prescribing optometrists, Neil Hilton and Dr Keyur Patel, consider the potential of central funding for children ...

Fixed lens cameras may be a bit niche, but there's a reason they're so popular amongst photographers. They often come with some of the best lenses on the market, in a variety of focal lengths, matched ...

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. Executive Editor David ...

The best lenses for astrophotography can help you create beautiful, detailed images of the night sky. Winter is the best time to do so. Owning one (or more) of the best lenses for astrophotography ...

In total, 105 healthy pigmented guinea pigs aged 2 weeks were selected and randomly divided into five groups. The normal control (NC) group received no treatment, while the experimental groups wore −6 ...

Standard zooms are often sold as 'kit lenses' Canon cameras, so you can buy a camera body complete with a standard zoom as a kit, typically saving money in the process. And to be hones, I think that ...

These are my top Canon EF-M lens picks for the EOS M50 & M50 Mark II, M6 & M6 Mark II, M5, M100 and M200 The best Canon EF-M mount lenses pair perfectly with EOS M system cameras. I've owned some of ...

The results of patient exams can be used to assist in contact lens fitting, refractive surgery, orthokeratology and general assessment of the cornea. Exceptional Corneal Coverage Using 32 rings ...