Phakic PC IOLs that are too short can not only decenter (Figure 8), but they can also come into contact with the anterior lens capsule, which may cause anterior subcapsular cataract formation ...

kumc.edu; plturnermd{at}att.net Aim: To analyse how age-related losses in crystalline lens transmittance and pupillary area affect circadian photoreception and compare the circadian performance of ...

Rigid gas permeable contact lenses can offer a safe option for obtaining the best possible visual result in cases of iatrogenic keratectasia. [12,14,54] Typically, patients with keratectasia ...

Nasha is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

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 ...

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 ...

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 ...

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 ...