The eyes A close up of a young person's eyes. The eyes are responsible for four-fifths of all the information our brain receives. Here you can find out a bit more about how they work, common problems that affect vision and the work Sightsavers does to treat and prevent avoidable blindness. You can also find out more about the people whose lives have been changed thanks to donations from people like you. How do eyes work? (click image to see enlarged version or click here for text alternative) Graphic of an eye with information about its different parts The images we see are made up of light reflected from the objects we look at. This light enters the eye through the cornea. Because this part of the eye is curved, it bends the light, creating an upside down image on the retina (this is eventually put the right way up by the brain). The retina is a complex part of the eye, but only the very back of it is light sensitive. This part of the retina has roughly the area of a 10p coin, and is packed with photosensitive cells called rods and cones. Cones are the cells responsible for daylight vision. There are three kinds – each responding to a different wavelength of light: red, green and blue. The cones allow us to see images in colour and detail. Rods are responsible for night vision. They are sensitive to light but not to colour. In darkness, the cones do not function at all. How do we see an image? The lens focuses the image. It can do this because it is adjustable – using muscles to change shape and help us focus on objects at different distances. The automatic focusing of the lens is a reflex response and is not controlled by the brain. Once the image is clearly focused on the sensitive part of the retina, energy in the light that makes up that image creates an electrical signal. Nerve impulses can then carry information about that image to the brain through the optic nerve.

At one time, women who had delivered by cesarean section in the past would usually have another cesarean section for any future pregnancies. The rationale was that if allowed to labor, many of these women with a scar in their uterus would rupture the uterus along the weakness of the old scar. Over time, a number of observations have become apparent: Most women with a previous cesarean section can labor and deliver vaginally without rupturing their uterus. Some women who try this will, in fact, rupture their uterus. When the uterus ruptures, the rupture may have consequences ranging from near trivial to disastrous. It can be very difficult to diagnose a uterine rupture prior to observing fetal effects (eg, bradycardia). Once fetal effects are demonstrated, even a very fast reaction and nearly immediate delivery may not lead to a good outcome. The more cesarean sections the patient has, the greater the risk of subsequent rupture during labor. The greatest risk occurs following a “classical” cesarean section (in which the uterine incision extends up into the fundus.) The least risk of rupture is among women who had a low cervical transverse incision. Low vertical incisions probably increase the risk of rupture some, but usually not as much as a classical incision. Many studies have found the use of oxytocin to be associated with an increased risk of rupture, either because of the oxytocin itself, or perhaps because of the clinical circumstances under which it would be contemplated. Pain medication, including epidural anesthetic, has not resulted greater adverse outcome because of the theoretical risk of decreasing the attendant’s ability to detect rupture early. The greatest risk of rupture occurs during labor, but some of the ruptures occur prior to the onset of labor. This is particularly true of the classical incisions. Overall successful vaginal delivery rates following previous cesarean section are in the neighborhood of 70 This means that about 30of women undergoing a vaginal trial of labor will end up requiring a cesarean section. Those who undergo cesarean section (failed VBAC) after a lengthy labor will frequently have a longer recovery and greater risk of infection than had they undergone a scheduled cesarean section without labor. Women whose first cesarean was for failure to progress in labor are only somewhat less likely to be succesful in their quest for a VBAC than those with presumably non-recurring reasons for cesarean section. For these reasons, women with a prior cesarean section are counseled about their options for delivery with a subsequent pregnancy: Repeat Cesarean Section, or Vaginal Trial of Labor. They are usually advised of the approximate 70successful VBAC rate (modified for individual risk factors). They are counseled about the risk of uterine rupture (approximately 1in most series), and that while the majority of those ruptures do not lead to bad outcome, some of them do, including fetal brain damage and death, and maternal loss of future childbearing. They are advised of the usual surgical risks of infection, bleeding, anesthesia complications and surgical injury to adjacent structures. After counseling, many obstetricians leave the decision for a repeat cesarean or VBAC to the patient. Both approaches have risks and benefits, but they are different risks and different benefits. Fortunately, most repeat cesarean sections and most vaginal trials of labor go well, without any serious complications. For those choosing a trial of labor, close monitoring of mother and baby, with early detection of labor abnormalities and preparation for

This video provides a demonstration of how to assess for transillumination when assessing scrotal swelling.

Read our step-by-step guide here: https://geekymedics.com/testic....ular-examination-osc

Check out our other awesome clinical skills resources, including:
• 🔥 Geeky Medics Bundles (discounted products): https://app.geekymedics.com/purchase/bundles/
• ✨ 1000+ OSCE Stations: https://app.geekymedics.com/pu....rchase/osce-stations
• 🏥 Geeky Medics OSCE Revision Book: https://app.geekymedics.com/purchase/book/
• 📝 150+ PDF OSCE Checklists: https://geekymedics.com/pdf-osce-checklists/
• 🗂️ 3000+ OSCE Flashcards: https://app.geekymedics.com/pu....rchase/flashcard-col
• 📱 Geeky Medics OSCE App: https://geekymedics.com/geeky-medics-app/
• 🩺 Medical Finals SBA Question Pack: https://app.geekymedics.com/pu....rchase/medical-stude
• 💊 PSA Question Pack: https://app.geekymedics.com/pu....rchase/prescribing-s

Subscribe to our newsletter to be the first to know about our latest content: https://geekymedics.com/newsletter/ ✉️

Join the Geeky Medics community: 👩‍👩‍👧‍👧
Twitter: http://www.twitter.com/geekymedics
Instagram: https://instagram.com/geekymedics
Facebook: http://www.facebook.com/geekymedics

Always adhere to your medical school/local hospital guidelines when performing examinations or clinical procedures. DO NOT perform any examination or procedure on patients based purely on the content of these videos. Geeky Medics accepts no liability for loss of any kind incurred as a result of reliance upon the information provided in this video.

http://penilepapules.plus101.com/ ----- White Spots On Shaft, Pearly Penile Papules Treatment Cream, Single Red Bump On Shaft, Ppp Surgery. Common Home Made Remedies for Pearly Penile Papules. When it comes to treating pearly penile papules many people find it very difficult to reach one of the medical treatments. This is mainly because they are highly expensive and not many people can afford spending large amounts of money on surgery and recovery. In addition to that, these procedures have been reported as being quite risky, which make the men suffering from pearly penile papules think twice before going for one of the available surgeries. This is why, along the time, many homemade, natural treatments have been experienced, so that a cheaper and less risky way of curing pearly penile papules would be found. Some of the methods which have been tried proved to be very less effective, while some did not have any effect at all. Yet, there have also been methods which not only proved to be effective, but they were also considered to be much better than the medical treatment. Most of those who have tried the tea tree oil treatment reported significant diminish of the number of the papules from their penises. In addition to the clearing of the skin, they have also noticed that there were no side effects and the skin remained soft after the papules were removed. As the method was quite simple to put in practice (it requires the application of tea tree oil on the affected area with a cotton swab for three or four times per day), many men decided this was indeed a great solution to their problem.

Watch that video of Virginity Hymen Repair Plastic Surgery

Watch that Human Baby Medical Abortion Surgery

Squared Notch

A breech birth is the birth of a baby from a breech presentation. In the breech presentation the baby enters the birth canal with the buttocks or feet first as opposed to the normal head first presentation.

There are either three or four main categories of breech births, depending upon the source:

* Frank breech - the baby's bottom comes first, and his or her legs are flexed at the hip and extended at the knees (with feet near the ears). 65-70% of breech babies are in the frank breech position.

* Complete breech - the baby's hips and knees are flexed so that the baby is sitting crosslegged, with feet beside the bottom.

* Footling breech - one or both feet come first, with the bottom at a higher position. This is rare at term but relatively common with premature fetuses.

* Kneeling breech - the baby is in a kneeling position, with one or both legs extended at the hips and flexed at the knees. This is extremely rare, and is excluded from many classifications.

As in labour with a baby in a normal head-down position, uterine contractions typically occur at regular intervals and gradually cause the cervix to become thinner and to open. In the more common breech presentations, the baby’s bottom (rather than feet or knees) is what is first to descend through the maternal pelvis and emerge from the vagina.

At the beginning of labour, the baby is generally in an oblique position, facing either the right or left side of the mother's back. As the baby's bottom is the same size in the term baby as the baby's head. Descent is thus as for the presenting fetal head and delay in descent is a cardinal sign of possible problems with the delivery of the head.

In order to begin the birth, internal rotation needs to occur. This happens when the mother's pelvic floor muscles cause the baby to turn so that it can be born with one hip directly in front of the other. At this point the baby is facing one of the mother's inner thighs. Then, the shoulders follow the same path as the hips did. At this time the baby usually turns to face the mother's back. Next occurs external rotation, which is when the shoulders emerge as the baby’s head enters the maternal pelvis. The combination of maternal muscle tone and uterine contractions cause the baby’s head to flex, chin to chest. Then the back of the baby's head emerges and finally the face.

Due to the increased pressure during labour and birth, it is normal for the baby's leading hip to be bruised and genitalia to be swollen. Babies who assumed the frank breech position in utero may continue to hold their legs in this position for some days after birth.

Check out @barrettplasticsurgery on TikTok!
Like and subscribe for more! #shorts #medical #plasticsurgery

More information:
www.drdanielbarrett.com

Pinch air out of the tip of the condom. Unroll condom all the way down the penis. After sex but before pulling out, hold the condom at the base. Then pull out, while holding the condom in place. Carefully remove the condom and throw it in the trash.

Though the risk of HIV transmission through oral sex is very low, but several factors might increase the risk, including sores in the mouth or vagina or on the penis, bleeding gums, having an oral contact with menstrual blood, and the presence of other sexually transmitted diseases. But still the risk is low. by the way better to think twice before having the Oralsex with strangers. because you are not safe 100%.

Demonstration of a one-hand tie for suturing in the operating room.

Less than a decade ago, corneal transplantation took a big leap forward with the introduction of Descemet’s stripping endothelial keratoplasty (DSEK), which removes only Descemet’s membrane and the diseased endothelium and replaces them with a thin, tripartite donor graft of posterior corneal stroma, Descemet’s membrane, and healthy endothelium. Then came DSAEK, in which the donor graft is prepared with an automated microkeratome, allowing for easier donor preparation and reproducible results by surgeons and eye bank technicians.1 DSAEK has proved to have many advantages over penetrating keratoplasty (PK) and its endothelial predecessors (see “A Brief History of Endothelial Keratoplasty”). Now DSAEK is being compared with a newer technique, Descemet’s membrane endothelial keratoplasty (DMEK), which has emerged as a promising alternative—grafting only Descemet’s membrane and endothelium, allowing for a pure anatomical replacement of only what was removed and the possibility of even better vision with quicker healing.1 Although indications for these procedures are similar, each has unique benefits and drawbacks. Five cornea surgeons offer their perspectives on the procedures and their thoughts on whether it may be time to move to the newer surgery.

Watch that Female Foley Genital Catheter Insertion Procedure

Possible causes are a blocked milk duct or bacteria entering the breast. It usually occurs within the first three months of breast-feeding. Symptoms include breast pain, swelling, warmth, fever, and chills. Antibiotics are required. Mild pain relievers can help with discomfort.

This baby was born with an adult sized tongue - and she just completed a surgery that will change her life.

Deep Palpation of the Abdomen

Watch that Cutting Inside Human Fat Body video

Transurethral resection of the prostate (also known as TURP, plural TURPs and as a transurethral prostatic resection TUPR) is a urological operation. It is used to treat benign prostatic hyperplasia (BPH). As the name indicates, it is performed by visualising the prostate through the urethra and removing tissue by electrocautery or sharp dissection. This is considered the most effective treatment for BPH. This procedure is done with spinal or general anesthetic. A large triple lumen catheter is inserted through the urethra to irrigate and drain the bladder after the surgical procedure is complete. Outcome is considered excellent for 80-90% of BPH patients. Because of bleeding risks associated with the surgery, TURP is not considered safe for many patients with cardiac problems. As with all invasive procedures, the patient should first discuss medications they are taking with their doctor, most especially blood thinners or anticoagulants, such as warfarin (Coumadin), or aspirin. These may need to be discontinued prior to surgery. Postop complications include bleeding (most common), clotting and hyponatremia (due to bladder irrigation).

Additionally, transurethral resection of the prostate is associated with low but important morbidity and mortality.