The axial length-to-corneal curvature radius ratio (AL/CR) is negatively correlated with choroidal blood flow in children with myopia, supporting the idea that myopia is an ischemic eye condition, ...

CXL does not alter topographic or refractive parameters, allowing clinicians to fit these patients with scleral lenses before the procedure.

Comedian Alan Carr has opened up about a recent health ordeal that left him fearing for his eyesight. Speaking to Grace Campbell on the Life’s a Beach podcast, the 48-year-old revealed he went to the ...

Comedian Alan Carr has opened up about a recent health ordeal that left him fearing for his eyesight. Speaking to Grace Campbell on the Life’s a Beach podcast, the 48-year-old revealed he went ...

Correspondence to Padmaja Sankaridurg, Brien Holden Vision Institute, Sydney 2052, New South Wales, Australia; p.sankaridurg{at}bhvi.org; Dr Xun Xu; drxuxun{at}sjtu.edu.cn Purpose To develop ...

Q's of the order of 10 8 are theoretically achievable in loops with radii ranging from 0.04 to 1 mm, if the percentage refractive index difference ... significant than radiation loss resulting from ...

Sometimes the refractive index of the air is such that the radar beam ... display the rainfall echoes from clouds approximately 3000m above the ground. Due to the curvature of the earth, the radar ...

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays—without the ...

Scientists have demonstrated that negative refraction can be achieved using atomic arrays -- without the need for artificially manufactured metamaterials. Scientists have long sought to control light ...

Scientists have found a way to achieve negative refraction—where light bends the "wrong" way—using carefully arranged atomic ...

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays - without the need for artificially manufactured metamaterials. Scientists have long ...