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LASIK or PRK? Which is right for me? Animation.
LASIK or PRK? Which is right for me? Animation. Mohamed Ibrahim 141 Views • 3 years ago

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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.

Diabetes Complications and Kidney Disease
Diabetes Complications and Kidney Disease samer kareem 8,039 Views • 3 years ago

Diabetes Complications and Kidney Disease

Brazilian Model's Leg and Butt Implants Exploded Inside Her
Brazilian Model's Leg and Butt Implants Exploded Inside Her hooda 114,586 Views • 3 years ago

Watch that video of a Brazilian Model's Leg and Butt Implants Exploded Inside Her

20 Foods That Help You Lose Weight
20 Foods That Help You Lose Weight Scott 3,811 Views • 3 years ago

Eating a high-protein breakfast has been shown to reduce cravings and calorie intake throughout the day (16, 17). Avoid sugary drinks and fruit juice. These are the most fattening things you can put into your body, and avoiding them can help you lose weight (18, 19). Drink water a half hour before meals.

Liposuction Cyprus
Liposuction Cyprus Ioannis Georgiou 1,695 Views • 3 years ago

Liposuction procedure under local anesthesia.

Second degree burns
Second degree burns samer kareem 14,902 Views • 3 years ago

soaking the wound in cool water for five minutes or longer. taking acetaminophen or ibuprofen for pain relief. applying lidocaine (an anesthetic) with aloe vera gel or cream to soothe the skin. using an antibiotic ointment and loose gauze to protect the affected area.

Medial Epicondylitis
Medial Epicondylitis samer kareem 1,750 Views • 3 years ago

Golfer's elbow causes pain that starts on the inside bump of the elbow, the medial epicondyle. Wrist flexors are the muscles of the forearm that pull the hand forward. The wrist flexors are on the palm side of the forearm. Most of the wrist flexors attach to one main tendon on the medial epicondyle.

Repairing Spinal Fractures with Balloon Kyphoplasty
Repairing Spinal Fractures with Balloon Kyphoplasty Emery King 10,968 Views • 3 years ago

DMC Interventional Radiologist Doctor Bruce Wolf uses minimally invasive surgery called Balloon Kyphoplasty to bring relief to a patient suffering from severe back pain caused by spinal compression fractures. This new procedure is especially beneficial to patients suffering from osteoporosis. ~ Detroit Medical Center

34 Weeks Pregnant
34 Weeks Pregnant samer kareem 4,463 Views • 3 years ago

During 34 week of pregnancy, the baby is getting ready for delivery, you may feel less wriggling and kicking. Watch out this video to learn more about being 34 weeks pregnant.

What Is Resective Surgery for Epilepsy?
What Is Resective Surgery for Epilepsy? samer kareem 3,703 Views • 3 years ago

Epilepsy surgery is reserved for people whose seizures are not well controlled by seizure medicines. This situation is sometimes called being "medically refractory" or "drug resistant." In children, the definition of medically refractory is even more individualized to the specific child's situation. Surgery may be considered for some children after weeks to months of treatment with seizure medicines.

Disc Herniation
Disc Herniation samer kareem 12,611 Views • 3 years ago

The vertebrae are the bony building blocks of the spine. Between each of the largest parts (bodies) of the vertebrae are the discs. Ligaments are situated around the spine and discs. The spine has seven vertebrae in the neck (cervical vertebrae), 12 vertebrae in the mid-back (thoracic vertebrae), and five vertebrae in the low back (lumbar vertebrae). In addition, in the mid-buttock, beneath the fifth lumbar vertebra, is the sacrum, followed by the tailbone (coccyx).

Hip Resurfacing Surgery Videos
Hip Resurfacing Surgery Videos Dr.Vijay C Bose 7,881 Views • 3 years ago

Hip Resurfacing Surgery Videos Welcome to the website of the Asian Regional Center for Hip Resurfacing (ARCH) is a specialized surgical center in Apollo Speciality Hospital Chennai. More than 1350 Hip Resurfacing Surgeries have been performed so far. Asian Regional Center for Hip Resurfacing is the first specialized resurfacing center in Asia. Patients with arthritis and hip pain travel from all over the world travel to ARCH for hip surgery. Hip Resurfacing Surgery has revolutionized hip arthroplasty especially for younger and active patients. Unlike conventional Total Hip Replacement (THR) the hip resurfacing conserves the bone in the hip which would be crucial in younger patients. No restrictions are imposed on the resurfaced hip and the patient can participate in any professional or recreational activity after the surgery.

How to Treat Snake Bites
How to Treat Snake Bites Mohamed Ibrahim 2,205 Views • 3 years ago

This Animation is strictly made in accordance to Snake Bite Treatment Guidelines and Protocols

New Hemorrhoids Treatment Method
New Hemorrhoids Treatment Method Scott 19,771 Views • 3 years ago

New Hemorrhoids Treatment Method

Aphthous ulcers
Aphthous ulcers samer kareem 2,257 Views • 3 years ago

Pneumothorax Easy explanation
Pneumothorax Easy explanation samer kareem 1,863 Views • 3 years ago

A pneumothorax occurs when some of the tiny air sacs (alveoli) in a baby's lung become overinflated and burst. This causes air to leak into the space between the lung and chest wall (pleural space). The most common cause of pneumothorax is respiratory distress syndrome. This is a condition that occurs in babies who are born too early (premature). The baby's lungs lack the slippery substance (surfactant) that helps them stay open. Therefore, the tiny air sacs are not able to expand as easily. If the baby is put on a breathing machine (mechanical ventilator), there is extra pressure on the baby's lungs, which can sometimes burst the air sacs.

CD Markers
CD Markers samer kareem 1,921 Views • 3 years ago

Laser Vaginal Tightening
Laser Vaginal Tightening samer kareem 2,123 Views • 3 years ago

New Minimally Invasive Procedure with No Pain or Downtime… From Dr. Michael Goodman, Caring For Women Wellness Center Laser Vaginal Tightening for Improved Sexual Pleasure and Relief from Minimal Urinary Incontinence Laser Vaginal Therapy for reversing Vaginal Atrophy (Good also for Breast Cancer Survivors with Vaginal Atrophy)

What  Unborn Babies Can Do in the Womb
What Unborn Babies Can Do in the Womb samer kareem 3,184 Views • 3 years ago

clear mucus discharge after ovulation
clear mucus discharge after ovulation samer kareem 33,997 Views • 3 years ago

Most women have vaginal discharge at many different times throughout their cycle. During ovulation, white and watery discharge is common and accepted as normal. But, discharge after ovulation is widely believed to be a sign of pregnancy.

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