presbyobia |
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optical prescriptions |
clinical refraction |
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prisms |
contact lenses |
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reflection of light |
optical aberration |
refractive surgery |
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properties of light |
spherical lenses |
optics of LVA |
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refraction of light |
eyerefraction |
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astigmatic lenses |
instruments |
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optics of ametropia |
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lasers |