[
UK
/ɐstˈɪɡmətˌɪzəm/
]
[ US /əˈstɪɡməˌtɪzəm/ ]
[ US /əˈstɪɡməˌtɪzəm/ ]
NOUN
- (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point
- (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people
How To Use astigmatism In A Sentence
- Similarly, the variation of distance refraction and the presence of astigmatism is also lower than for humans.
- Astigmatism is caused when the cornea is shaped irregularly like a football.
- Typical aberrations that can impact imaging performance include astigmatism, chromatic aberration, and spherical aberration.
- In the treatment of ‘gross’ errors of refraction - myopia, astigmatism and hyperopia - LASIK is one of the procedures of choice.
- Another defect of the eye, known as astigmatism, is due to the fact that the eye does not always have a perfectly spherical front (cornea). The Science of Human Nature A Psychology for Beginners
- Ordinary soft lenses tend to mould to the astigmatic curve, but special toric soft lenses are available for astigmatism.
- After the surgery, I definitely saw better - my previous vision had been -7 and -7.5 with severe astigmatism, which is a short step away from being totally non-functional - but after two weeks, I went back in for another corrective round. Nad hen j��c eto
- Deriving from his specialised knowledge of optometry, this cylindrical lens imitates what happens in astigmatism.
- The degree of astigmatism should not exceed more than four diopters.
- When the lens is distorted, you have lenticular astigmatism.
