ABOM Question - Retinal Image Size

[FJSee]

Can someone please help with this question?

Would the image size on the retina of a corrected myope be larger or smaller than that of a corrected hyperope?

I came across this while reviewing material for ABOM in the Ophthalmic Dispensing Review Book. The stated answer (larger) seems contrary to the familiar "plus lens magnifies; minus lens minifies."

It may be a type error but I suspect there is more to this than that.

If true, I have been offered two theories:
1. The focal point of a minus lens being an imaginary point in front of the lens, somehow results in a larger image on the retina.
2. Myopes have too much ocular plus, causing a larger image.

Thanks very much for any help to clarify this.

[chip anderson]

Larger on an uncorrected myope.
Smaller on a corrected myope.
Smaller on an uncorrected hyperope.
Larger on a corrected hyperope.

The further away from the cornea the correction is the greater this effect. The stronger the plus or minus is, the greater the effect.

Chip.

[John Tickner]

This is one reason why corneal refractive orecedures are less successful in hyperopes.

There is always a degree of haze degrading the image post laser surgery, but the myope is able to deal with it partly because of increased retinal image size. The hyperope on the other hand has haze AND decreased retinal image size, and the visual results in terms of acuityu, I believe are less good.