Home > Industry/Domain > Biology

Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

0Categories 283278Terms

Add a new term

Contributors in Biology

Biology >

Astigmatic effect

Eyewear; Optometry

Collective description of the cylindrical power and the cylinder axis.

Distance optical centre

Eyewear; Optometry

Optical centre of the distance portion.

Reference seeing distance

Eyewear; Optometry

Agreed distance of 250 mm between the object side (first) nodal point of the eye and the object observed. The reference seeing distance is used, above all, as a reference ...

Intraocular pressure

Eyewear; Optometry

Eye pressure, as determined by the amount of aqueous humour filling it. High IOP (ocular hypertension) can be a sign of glaucoma

Inset

Eyewear; Optometry

Displacement of a multifocal segment from the distance reference point towards the nose, usually whithout reference to the effect on the near optical centres.

Interpupillary distance

Eyewear; Optometry

Distance between the centres of the pupils when the eyes are fixating an object at an infinite distance in the straight-ahead position.

Fitting point position

Eyewear; Optometry

Vertical and horizontal fitting distances and directions of the fitting point from the boxed centre of the lens shape.

Sub-categories