Subjective refraction | 合法醫療器材資訊網
AstheJCCisacombinationoftwocylindricallenses,anycylindricalpowerthatisaddedmustbeaccompaniedbyasphericallensequivalent,tokeepthe ...
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Technique to determine the combination of lenses that will provide the best corrected visual acuity
(Top) 0.50 confirmation set; (Middle) trial lens box, including pinhole and occluder; (Bottom) Snellen chartSubjective Refraction is a technique to determine the combination of lenses that will provide the best corrected visual acuity (BCVA).[1] It is a clinical examination used by orthoptists, optometrists and ophthalmologists to determine a patients need for refractive correction, in the form of glasses or contact lenses. The aim is to improve current unaided vision or vision with current glasses. Glasses must also be comfortable visually. The sharpest final refraction is not always the final script the patient wears comfortably.
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