геометриялық орталық

Corrective lenses that have two powers of correction. Typically the majority of the lens is corrected for distance vision while a small are is corrected for near vision. Bifocals ...

ескіру мерзімі

眼镜; 验光; 隐形眼镜; 眼科手术

Medical prescription terms were originally all written in Latin. Many of the Latin terms continue to be used today. Eyeglass prescriptions are somewhat different, and you can ...

бинокулярлық

眼镜; 验光; 隐形眼镜; 眼科手术

Both eyes.

флуоресцеин

眼镜; 验光; 隐形眼镜; 眼科手术

A tiny amount of a fluorescein dye is placed in the tear film. The color will make microscopic dots appear where the eye has become dry. Excessive staining is an indication of dry ...

призма

眼镜; 验光; 隐形眼镜; 眼科手术

A prism is a lens that will bends light towards its base. Prisms are used to measure the angle of deviation in strabismus to correcting binocular polyopia when the eyes become ...

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行业/领域：假日类别宗教节日

Күлгін Сәрсенбі

Ash Wednesday is observed by Christians. Marking the first day of Lent, which lasts until Easter (a period of 46 days), it is the day of repentance. ...