Optics and Refractive Errors Flashcards

1
Q

When does axial lengthening occur?

A

Most occurs in the first 3-6 months of life

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2
Q

How is the axial ‘length’ of the eye measured?

A

From the corneal surface to the retinal pigment epithelium(RPE) / bruch membrane.

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3
Q

What is the normal axial length in adults?

What is the normal lens to retina length in adults?

A

Axial - 24mm

17 mm

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4
Q

Define Myopia:

A

This is when the focus of light occurs before reaching the retina. (short sightedness)

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