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May 7, 2020 · Using a red hatpin (or alternatively, a cotton bud stained with fluorescein/pen with a red base) start by identifying and assessing the patient’s blind spot in comparison to the size of your own. The red hatpin needs to be positioned at an equal distance between you and the patient for this to work.
- Dr Lewis Potter
13 Using a red hatpin (or alternatively, a cotton bud stained with fluorescein/pen with a red base) start by identifying and assessing the patient’s blind spot in comparison to the size of your own.
Aug 28, 2013 · Using a red hatpin (or alternatively, a cotton bud stained with fluorescein/pen with a red base) start by identifying and assessing the patient’s blind spot in comparison to the size of your own. The red hatpin needs to be positioned at an equal distance between you and the patient for this to work.
Jan 1, 2018 · If appropriate, map out the patient's blind spot: the patient and examiner are seated as for the visual field test; both close one opposite, non-tested eye
Apr 1, 2013 · Finding the Blind Spots. Each eye has a blind spot that corresponds to the optic nerve head, where the absence of photoreceptors produces an absolute scotoma roughly 10°-15° temporal to the fovea. It is located on the horizontal raphe on the side of the eye. Fixation can be tested by mapping the blind spot and then retesting it.
Ask the patient to focus on a red hat pin presented directly in front of their eye. Move a hat pin of a different colour (or white cotton swab) temporally until they lose sight of it. Ensure these are midway between yourself and the patient so that you are checking your blind spot and comparing it to theirs at the same time
People also ask
How do you detect a blind spot in a hatpin?
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What does a blind spot indicate?
Where is a blind spot located in a field analyzer?
The blind spot indicates the location of the optic nerve head—an area with no photoreceptors—in the temporal part of the visual field. Anything obstructing the travel of light towards the retina may affect the field tests, for example, lens opacity (cataract), ptosis (if not taped away from the pupil) or the rim of a correcting lens (test ...
