Search results
semanticscholar.org
- A particular blind spot known as the physiological blind spot, "blind point", or punctum caecum in medical literature, is the place in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the optic disc of the retina where the optic nerve passes through the optic disc.
en.wikipedia.org/wiki/Blind_spot_(vision)
People also ask
What is a physiological blind spot?
What is a blind spot?
Is there a neural representation of a blind spot?
Why are blind spots not seen in the right eye?
What causes an enlarged blind spot?
What is the difference between a scotoma and a blind spot?
blind spot, small portion of the visual field of each eye that corresponds to the position of the optic disk (also known as the optic nerve head) within the retina. There are no photoreceptors (i.e., rods or cones) in the optic disk, and, therefore, there is no image detection in this area.
Dec 12, 2022 · The physiological blind spot is a naturally occurring scotoma corresponding with the optic disc in the retina of each eye. Even during monocular viewing, observers are usually oblivious to the scotoma, in part because the visual system extrapolates information from the surrounding area.
- 10.1002/hbm.25996
- 2022/12/12
A blind spot, scotoma, is an obscuration of the visual field. A particular blind spot known as the physiological blind spot, "blind point", or punctum caecum in medical literature, is the place in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the optic disc of the retina where the optic nerve passes ...
May 7, 2018 · Answer: The blind spot is the part of our retina that lacks light-sensitive receptor cells. The back of our eye is called the retina. The retina is packed with photoreceptor cells that respond to incoming light. These cells do not exist in the blind spot.
- Background
- Introduction
- Blind Spot Assessment
- To Complete The Examination…
A physiological blind spot exists in all healthy individuals due to the lack of photoreceptor cells in the area where the optic nerve emerges through to the retinal plane (optic nerve head / optic disc). In day-to-day life, the brain does an excellent job of reducing our awareness of the blind spot by using information from other areas of the retin...
Wash your hands and don PPEif appropriate. Introduce yourself to the patient including your name and role. Confirm the patient’s name and date of birth. Briefly explain what the examination will involve using patient-friendly language. Gain consentto proceed with the examination. Position the patient sitting on a chair. Ask if the patient has any p...
1. Sit directly opposite the patient, at a distance of around 1 metre. 2. Ask the patient to cover one eye with their hand. 3. If the patient covers their right eye, you should cover your left eye (mirroring the patient). 4. Ask the patient to focus on part of your face (e.g. nose) and not move their head or eyes during the assessment. You should d...
Explain to the patient that the examination is now finished. Thank the patientfor their time. If mydriatic drops were instilled, remind the patient they cannot drive for the next 3-4 hoursuntil their vision has returned to normal. Dispose of PPE appropriately and wash your hands. Summariseyour findings
- Dr Lewis Potter
The eye’s retina receives and reacts to incoming light and sends signals to the brain, allowing you to see. One part of the retina, however, doesn't give you visual information—this is your eye’s “blind spot.”
Aug 31, 2015 · The physiological blind spot refers to a zone of functional blindness all normally sighted people have in each eye, due to an absence of photoreceptors where the optic nerve passes through the surface of the retina.
