How to use optical refractors to test vision with plus lenses

How to use optical refractors to test vision with plus lenses If you are an optometry or opthalmology student, this is the perfect how-to video for you. Watch these these seven videos and learn how to test a patients vision with a refracting machine using plus lenses. It’s a little difficult to describe the controls used for refracting because every instrument is set up differently. If possible, refer to a manual for the specific refracting instrument that you’ll be using. This vision tutorial will walk ...more

If you are an optometry or opthalmology student, this is the perfect how-to video for you. Watch these these seven videos and learn how to test a patients vision with a refracting machine using plus lenses. It’s a little difficult to describe the controls used for refracting because every instrument is set up differently. If possible, refer to a manual for the specific refracting instrument that you’ll be using. This vision tutorial will walk you through all the parts of a optical refracting instrument, sphere establishment, cylinder axis refinement, cylinder power refinement, sphere power refinement and cylinder power search within the range of a patient vision who needs plus lenses.