Cornea

The cornea, goes through minor changes such as increase in cornea thickness and curvature increasing the possibility of astigmatism. Aging also results in reduction of pupil size, number of rods, and retinal ganglion cells. Changes in eye movements are also prominent in old age with…

Sports-related injuries provide a combination of extensive and inevitable problem as they are responsible for up to 25% of severe eye injuries worldwide. Eye injuries from blunt forces and penetrating objects may cause morbidity, disability, and blindness. Most of these injuries are preventable if and only if the information regarding the detail of injury is available. Each sport induces its own injury to the eye owing to variation in the ball’s size, speed, and mechanical properties. Although…

I am a part-time orchestral conductor and percussionist. As a passionate musician, I always enjoy learning, practicing, performing, and appreciating music fascinating. Throughout my musical experience, I encountered a lot of thought-provoking questions. How did I receive and interpret information during each rehearsal? Why did repetitive practicing make it possible for me to play a repertoire without looking at music score? What made professional orchestra able to have less rehearsal than a…

Contact lenses for hard-to-fit eyes Have you ever had trouble when it comes to wearing contact lenses or been told that you simply can’t wear them? Don’t give up just yet as it may just be a case of having what’s known as “hard-to-fit” eyes. This doesn’t mean you can’t wear contact lenses; you just need to know your options. Want to find out a little more? Then read on as we discuss reasons for having hard-to-fit eyes along with a number of possible contact lenses for hard-to-fit eyes. There…

During an unsuspecting recess in third grade, it had started snowing. It had been snowing on and off for the past 24 hours. The kids would put on their snow pants and boots and carefully head outside, avoiding the slippery patches of ice. Many would rush to a side of the playground, where someone had an idea to make something even more fun. We had something that was commonly known as the monster slide, as the opening had a design as a dragon’s mouth. Snow on the ground was two feet high and…

You are sleeping peacefully in the fetal position in the comfort of your own clean, dryer-fresh linens and all of sudden you are plummeting off the edge of cliff, falling a thousand meters a second, your heart drops and your senses slam you awake. Whew! It was just a dream! We all dream at some point, while some of us may dream less frequently or become unable to remember our dreams, we all do so. I will address the scientific term for dreaming, which is REM, or Rapid Eye Movement, the fifth and…

Cross-linking of collagen means the ability of collagen fibrils to form strong chemical bonds with adjacent fibrils (Ashwin and MaDonnell, 2010). In the cornea, collagen cross-linking occurs naturally with aging due to an oxidative deamination reaction which occurs within the end chains of the collagen fibrils and this natural cross-linkage of collagen explains why corneal ectasia often progresses most rapidly in adolescence or early adulthood but tends to be stable in patients after middle-age…

The magic of vision is incredible. Through the small window we are able to see the whole world. Eye is one of the five senses what human possess and majority would agree that it is perhaps the most important one. Many of us would be intrigued by the composition of the eye and even more by his interconnection with brain. How the eye actually works, his structure and the function will help us in better understanding how visual light is converted into our perception. The challenge of the image…

respectively). Subsequently, data can be analyzed to obtain mitochondrial reserve capacity among a host of many other metabolic parameters (**). After we establish baseline data with normal HCEC, we will repeat experiments with HCEC derived from FECD corneas. Our next step will be to assess if the mitochondrial inhibitors employed in the experiments above affect PAMR and TER (as measured by…

For clear vision, the eye's cornea and lens must curve (refract) light beams legitimately, so that pictures are centered plainly on the retina. Overall, the pictures will be blurry. This blurriness is alluded to as a "refractive mistake." It is created by a contrast between the shape of the cornea (bend) and the length of the eye. LASIK utilizes an excimer laser (a ultraviolet laser) to correctly uproot corneal…