What is Pseudopapilledema?
Pseudopapilledema is defined as anomalous elevation of one or both optic discs without edema of the retinal nerve fiber layer. Papilledema, on the other hand, is a swelling of the optic disc due to increased intracranial pressure.
What causes SVP?
Spontaneous venous pulsation (SVP) is a result of the variation in the pressure gradient along the retinal vein as it traverses the lamina cribrosa.  When the intracranial pressure (ICP) rises, the intracranial pulse pressure also rises to equal the intraocular pulse pressure and the SVP ceases.
Is spontaneous venous pulsation normal?
These findings confirm that the presence of spontaneous venous pulsations is a reliable indicator of an intracranial pressure below 180 to 190 mm H2O, while the absence of pulsations may be found with normal intracranial pressure and is therefore not a reliable guide to raised intracranial pressure.
What does SVP stand for in Optometry?
In such cases, the most helpful element of the examination is the presence or absence of a spontaneous venous pulse (SVP).
How is Pseudopapilledema treated?
There is no treatment necessary for pseudopapilledema if it is related to a congenital variant. If the pseudopapilledema appearance is due to a peripapillary tumor, the direction of treatment should be at the tumor as appropriate.
How is Pseudopapilledema diagnosed?
Pseudopapilledema may be unilateral or bilateral, but almost all cases of papilledema are bilateral. An extensive workup is usually unnecessary, and an experienced general ophthalmologist or neuro-ophthalmologist can correctly diagnose pseudopapilledema via an ophthalmoscopic examination.
Can SVT be cured?
SVT does not usually cure itself. However, sometimes the attacks occur very frequently and at other times less frequently. However, the tendency is for attacks to occur more frequently as the patient gets older.
Why do I feel a heartbeat in my eyes?
Answer. The symptoms you are describing are probably related to myokymia, a benign spontaneous twitching usually of the lower eyelid. Possible precipitating factors are stress, fatigue, or too much caffeine. It is rarely a precursor of a more serious condition known as blepharospasm.
What is jugular venous pulsation?
The jugular venous pulse (JVP) is the reference physiological signal used to detect right atrial and central venous pressure (CVP) abnormalities in cardio-vascular diseases (CVDs) diagnosis. Invasive central venous line catheterization has always been the gold standard method to extract it reliably.
What does SVP mean in medical terms?
SVP stands for Single-Ventricle Palliation (cardiology)
What kind of brain tumor causes papilledema?
The most common causes of papilledema without IIH were intracranial tumor, intracranial hemorrhage, and cerebral venous sinus thrombosis (Table 1).
What are the symptoms of drusen?
Drusen symptoms and diagnosis
- distortion of straight lines in your field of vision (metamorphopsia)
- difficulty adapting from bright lights to low lights.
- hazy or blurry vision.
- blank spot in your central vision.
Why do I hear my heartbeat in my ear?
Pulsatile tinnitus is often caused by disorders or malformations in the blood vessels and arteries, especially those near the ears. These abnormalities or disorders — including aneurysms and arteriovenous malformations — can cause a change in the blood flow through the affected blood vessels.
Can Jehovah’s Witnesses use blood for medical procedures?
Certain medical procedures involving blood are specifically prohibited by Jehovah’s Witnesses’ blood doctrine. This includes the use of red blood cells, white blood cells, platelets and blood plasma. Other fractions derived from blood are not prohibited.
What causes blood in semen after prostate biopsy?
The most likely cause of blood in semen are: Trauma from a prostate biopsy. You may see blood for up to four weeks after the procedure. Trauma from a vasectomy. You may see blood for over a week.
Which blood type is the most commonly used in emergencies?
However, the need for O negative blood is the highest because it is used most often during emergencies. The need for O+ is high because it is the most frequently occurring blood type (37% of the population). The universal red cell donor has Type O negative blood. The universal plasma donor has Type AB blood.
Which blood type is passed on genetically from the mother?
Like eye color, blood type is passed genetically from your parents. Whether your blood group is type A, B, AB or O is based on the blood types of your mother and father. passed on genetically.