An IOL that compensates for the natural spherical aberration of the cornea significantly reduces the amount of postoperative higher-order aberrations in eyes with large pupils compared to standard ...

The researchers customized this adaptive optics scanning light ophthalmoscope to improve imaging resolution by strategically blocking light in various locations of the instrument. (Courtesy: Johnny ...

THE fundamental principles of the diffraction process of colour-photography will be found in my earlier papers on the subject. 2 In brief, the method consists in preparing by photographic means a ...

Replay: Every DP is aware that the iris in a lens controls exposure and, as a side effect, depth of field. But here are five things which aren’t so commonly known about it. Inside a lens, amongst the ...