Ophthalmic Optics第 24 / 100 题
Effective power change from vertex distance is most significant for which prescriptions?
a.High-powered lenses
b.Plano lenses
c.Low-powered lenses
d.Cylinder-only lenses
解析
The further a lens is moved from the eye, the more its effective power changes, and this effect grows with lens power. For high plus or minus Rx, vertex compensation is important; weak Rx changes negligibly.
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