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Myopia (Nearsightedness Or Short-sightedness)

Myopia - Written by Arief Tjitra Salim, BEng (Hons), Bioengineering. What is myopia? Myopia, also known as short-sightedness or near-sightedness, is a refractive error in the eye that affects a person’s ability to focus on distant objects. Distance vision and visual acuity can be tested by assessing one’s ability to...

Trachoma

Trachoma - Written by Dr. Michael Dejene Bejiga, MD, MPH, MSc. What is trachoma? Trachoma is a disease of the eye and is the leading infectious cause of avoidable blindness. [1,2] It is caused by infection with a certain strain of bacterium called Chlamydia trachomatus and is transmitted by direct...

Episcleritis

Episcleritis - Written by Dr. Jia Hui Lee, MBBS (Hons) and A/Prof Elaine Chong, MBBS MEpi PhD Melb, FAMS, FRANZCO. What is episcleritis? Episcleritis refers to inflammation of the episclera, which is a very thin layer of clear tissue that sits between the white part of the eye (the sclera,...

Nystagmus

Nystagmus - Written by A/Prof Larry Abel, BSc, MSc, Ph.D. What is nystagmus? Nystagmus is an uncontrollable oscillation or movement of the eyes which begins with a slow movement. The eyes return to the point of fixation either with a rapid movement, or another slow movement. While usually horizontal, it...

Macular degeneration

Macular degeneration - Written by Dr. Ali Dirani, MD, MSc, MPH and Mélanie Hébert, MD, MSc. What is myopic macular degeneration? In myopia or near-sightedness, there is elongation of the eye which stretches the retina (light sensitive tissue at the back of the eye) and this may lead to areas...

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