Optics

Stage 3 means the cancer is in more than one lobe of the lung or it has spread to lymph nodes or nearby areas in the chest. The patient may have surgery if the surgeon can remove all of the cancer or they are well enough. This may require having to remove part or the whole of the lung. After surgery, they might have chemotherapy to lower the chance of the cancer coming back. If they cannot have surgery they might have one or more of these treatments radiotherapy, chemotherapy or…

and colours. Eye conditions also develop in the early stages of childhood. From a young age, I grew up with an eye condition known as strabismus, only now do I know how my sight has been affected. Being slightly myopic, I became more intrigued in optics after being advised to wear glasses and realised when tiredness took over; when the spectacles were neglected, the intermittent exotropia misalignment (previously esotropia) in my left eye becomes more apparent. From this I have come to…

Increased intracranial pressure is an event that is caused by multiple neurologic conditions. Most of time, it usually occurs due to head injury, brain tumor, hemorrhage, and toxic or viral encephalopathies. Increased ICP takes place suddenly, and progresses very fast. As the pressure increase, our body tries to fix the problem by compressing the veins and displacing the cerebral spinal fluid. As the pressure keeps increasing, blood flow to the brain gets affected. There is decrease is oxygen…

1.1 anatomy of the cornea 1.1.1 Anatomy of the Cornea The cornea is important visual part of the eye, it’s a thin dome-shaped oval from the front and circular from behind and covers the front part of the eye which include iris, pupil and anterior chamber. It forms anterior 1\6 of the outer coat of the globe.[1] The sclera and the conjunctiva overlap the cornea more vertically than horizontally. Together with the lens, the cornea refract light, and it is approximately 43 diopters of the total…

In the daily lives of humans we often take our ability to see for granted. We rarely think about what process our eyes and brain must complete in order to view something as simple as a movie or lecture slide. In fact, such a small part of our anatomy is made of greatly complex procedures The operation system of the eye is very complex and one can easily stray from track when discussing how the eye works. First, the cornea is a part of the physical eye that helps reflect and bend light in a way…

Risk Factors There are several identified genetic and environmental risk factors for pediatric multiple sclerosis. Some of the identified environmental risk factors include exposure to certain viruses, vitamin D deficiency, and second-hand tobacco smoke exposure. The main genetic risk factors involved in development of pediatric onset multiple sclerosis (POMC) is variation in Human Leukocyte Antigen (HLA)-DRB1 *1501 and familial history [1]. Genetic Risk Factors Familial susceptibility of…

Vision can change temporarily or permanently due to eye problems that can provide information in a patient’s health status as well as problems with self-care. Changes in the structural components of the eye caused by aging begin early especially with the lens of the eye. Visual functions are reduced due to age-related changes of the nervous system and in the eye support structures. Three layers form the wall of the eye: sclera, choroid, and retina. The sclera, a thick, white, outermost layer…

Late presentation of Glaucoma to health facilities is mostly influenced by poor knowledge of the disease, its risk factors and associated consequences. Sources of eye health information is limited and obtained mostly from family members or friends based on past experiences as such, the available information may be inaccurate and influenced by traditional beliefs. In addition, appropriate information is poorly targeted to persons at risk of developing the disease hence, the health and economic…

For my formal critique I accessed the TED website and watched a presentation by Kang Lee, which was titled “Can you really tell if a kid is lying?”. The presentation was filmed in February of 2016, it was13.36 minutes long and had a total of 1,824,961 views. Kang Lee a developmental researcher, talked about how children learn to tell lies and how you can detect when a child is lying. He proceeded to talk about a new technology that allows you to reveal peoples hidden emotions, that could…

From primary sources and your notes on Hellenistic art, explain the relationship between mathematics and beauty. Include in your response the following ratios, proportion, perfect vs. imperfect, mathematical harmony and optical importance. After the death of Alexander the Great, the art period changed immensely from classical to the Hellenistic period. The Hellenistic period consists of complexity, movement, emotion and focuses on conveying drama. Hellenistic art were athletes, heroic figures,…