People considering alternatives to eyeglasses or contact lenses may be considering laser eye surgery and want to know how it ...

I’m one of 30 million people who undergo laser eye surgery every year, with the very first procedure carried out in 1989.

But astigmatism can happen when your cornea and lens are oval or egg-shaped. The change in shape and curvature affects how light bends and passes through your eye and causes blurry vision. With ...

Aims To quantitatively measure retinal curvature (RC) in children with myopia and explore its association with refractive ...

Corneal topography is an indispensable tool ... Placido-disk systems have excellent accuracy and reproducibility in curvature measurement. The Orbscan ® (Bausch & Lomb, Rochester, NY) device ...

Lennon had a significant case of myopia and moderate astigmatism (an imperfection in the cornea curvature). He claimed cannabis use helped keep his contact lenses in place, and this study indicated ...

1 Aier Eye Hospital of Wuhan University, Wuhan, Hubei, China 2 Eye Center, Renmin Hospital of Wuhan University, Wuhan, Hubei, China Objective: To investigate the pathogenesis of Primary Angle-Closure ...

the trifocal and EDOF groups did not differ significantly in postoperative refraction or in any of the corneal parameters examined, including curvature, astigmatism or spherical aberration (Table 2).