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How Does Your Sexual System Work 2 .آپ کا جنسی نظام کیسے کام کرتا ہے؟

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Perfect for patient education purposes.
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LASIK, or "laser-assisted in situ keratomileusis," is the most commonly performed laser eye surgery to treat myopia, hyperopia and astigmatism. The goal of the treatment is to reshape the cornea to correct the refractive error of the eye.
The cornea is the transparent dome-shaped structure in front of the eye. The cornea refracts light and accounts for about two-thirds of the eye's total optical power. Altering the curvature of the cornea changes the way light rays enter the eye. As a result, the light rays can be focused properly onto the retina for clearer vision.
For nearsighted people, the laser is used to flatten the cornea. For farsighted people, the cornea is made steeper. For patients with astigmatism, the laser is used to smooth the irregularly-shaped cornea into a more regular shape.
The outer layer of the cornea - the epithelium – is capable of replacing itself within a few days after being damaged or removed. The deeper layer of the cornea – the stroma, on the contrary, is a permanent corneal tissue with very limited regenerative capacity. The stroma, if reshaped by a laser, will remain that way permanently.
In this procedure, a thin, circular "FLAP" is created in the surface of the cornea to gain access to the permanent corneal tissue. This can be done with a mechanical cutting tool called a microkeratome, OR, for a blade-free experience, by a femtosecond laser. An excimer laser is then used to remove some corneal tissue to reshape the cornea. Excimer laser uses cool ultraviolet light beams to vaporize microscopic amounts of tissue in a precise manner to accurately reshape the cornea. The excimer laser is computer-controlled and is programmed based on the patient’s refractive error. The flap is then laid back in place and is allowed to heal.
LASIK eye surgery is mostly painless and can be completed within minutes. Improved vision can usually be seen overnight.

PRK, or photorefractive keratectomy, was the first type of laser eye surgery for vision correction and is the predecessor to the popular LASIK procedure. In PRK, NO flap is created. Rather, the epithelial cells on the eye surface are simply removed. An excimer laser is then used to reshape the cornea just like it does in LASIK.
The vision correction outcomes of PRK surgery are comparable to those of LASIK, but the recovery period is longer. This is because the epithelium is completely removed in PRK and it takes a few days to regenerate. PRK patients also have more discomfort and haziness of vision in the first few days after the surgery. Improved vision also takes longer to achieve.
PRK does, however, offer certain advantages. Because PRK does not involve creation of a flap, which contains both epithelial and deeper stromal tissue, the entire thickness of the stroma is available for treatment. The treatment range is therefore higher. This is particularly useful for patients with high levels of myopia or for those whose cornea is too thin for LASIK. PRK is also free of flap-related complication risks.

16 year Boy.Grade III Varicocele.ISV reflux on CDUS.Operative findings showed high attachment of sigmoid.This procedure was done at Pakistan Institute of Medical sciences,PIMS,Islamabad,Pakistan

occur in this infant because of hypocalcemia

Tracheostomy

Varicose veins are generally benign. The cause of this condition is not known. For many people, there are no symptoms and varicose veins are simply a cosmetic concern. In some cases, they cause aching pain and discomfort or signal an underlying circulatory problem. Treatment involves compression stockings, exercise, or procedures to close or remove the veins.

Follow along on a typical day with UCSF Medical Center's chief of cardiothoracic surgery Dr. Tom Nguyen. Take a walk on rounds with his team as they check on patients who are recovering or preparing for heart valve surgeries to treat conditions such as mitral valve prolapse and mitral regurgitation. Get a glimpse into the operating room as Dr. Nguyen and his team use the latest non-invasive techniques to help patients achieve the best outcomes.

0:00 Surgeon begins day with morning report
0:53 Meet with fellows and visit patients
1:28 Surgeon thoughts on his practice
Minimally Invasive Surgeries
2:09 Mitral valve replacement for mitral stenosis
3:11 Mitral valve repair for AFib and mitral regurgitation
3:36 Stopping the heart
4:15 Culture 1 - Everyone's voice matters
4:45 Mitral valve repair for heart murmur
5:12 Culture 2 - Patient first

To view more UCSF videos relating to Mitral Regurgitation Treatment and Aortic Stenosis Treatment view:
Mitral Regurgitation Treatment Options https://youtu.be/7nUUOMx4tJ0
Aortic Stenosis Treatment Options https://youtu.be/A2rZK0oFWcc

If you want to learn more about the Cardiac Surgery clinic and to request an appointment visit: https://www.ucsfhealth.org/cli....nics/cardiac-surgery



#dayinthelife #heartsurgeon #heartsurgery #CardiacSurgery #Cardiology #ucsf #drnguyen#ucsfhealth #Cardiothoracic

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