@@intantalhah6485 In cross retinoscopy, We distribute the power in optical cross 90° apart and again we write the power for final prescription 90° apart for cylinder meridian. This is because of using two Spherical Trial lens in this method. In Sphero-Cylinder method, you don't have to do optical cross as we are using cylinder trial lens to neutralize cylinder meridian. Watch this for Sphero-cylinder Method: ruclips.net/video/Qt8eg9BxmBE/видео.html
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Thank you,
Samir Sutradhar.
will do ..but a bit confuse ..why you too the axis 90 degrees for the ret result
@@intantalhah6485
In cross retinoscopy, We distribute the power in optical cross 90° apart and again we write the power for final prescription 90° apart for cylinder meridian. This is because of using two Spherical Trial lens in this method.
In Sphero-Cylinder method, you don't have to do optical cross as we are using cylinder trial lens to neutralize cylinder meridian.
Watch this for Sphero-cylinder Method: ruclips.net/video/Qt8eg9BxmBE/видео.html
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what is with the annoying music
@@Star23Producer
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