Refraction through spherical lenses
Lens: A piece of transparent material (such as glass) whose two opposite regular surfaces are either curved or one is curved and the other is flat and which is used…
Blurry Vision Mystery: How Optical Aberrations Affect that You See
Vision is one of the most complex and fascinating senses in the human body. However, not everyone experiences perfect clarity when they open their eyes. Many people struggle with blurry…
NIGHT VS DAY VISION: HOW THE CORNEA AND LENS CREATE SHARP VISION
INTRODUCTION: The human eye is an extraordinary organ that adapts to both bright and low-light conditions, ensuring clear vision across different environments. Two key structures, the cornea and the lens,…
Retinoscopy Unveiled: The Secret to Perfect Vision Correction
Introduction In the world of optometry, precise vision correction is both an art and a science. Among the many techniques used by eye care professionals, retinoscopy stands out as a…
Neuro-Optometry: Vision Rehabilitation for Traumatic Brain Injury
Introduction Vision, as a multifaceted processing system, extends beyond mere visual acuity. A structured approach to evaluating and addressing visual deficits is essential for effective treatment. Such a systematic methodology…
Tuberculosis and eyes
Tuberculosis (TB) is a bacterial infection caused by Mycobacterium tuberculosis. It primarily affects the lungs, it can spread to other organs, including the eyes. Ocular tuberculosis is an underdiagnosed but…
Importance of Contrast Sensitivity in Eye Test
Introduction The concept of contrast sensitivity pertains to patients’ visual perception, specifically their capacity to differentiate between items or patterns that exhibit varying levels of contrast. Contrast refers to the…
Diabetes and the Cornea: Understanding the Connection
Diabetes, a chronic condition characterized by high blood sugar levels, has widespread effects on the body. While most people are aware of its impact on organs like the heart, kidneys,…
Hirschberg Corneal Reflex Test
The Hirschberg test is a simple, non-invasive clinical test used to evaluate ocular alignment and detect strabismus (ocular misalignment).Strabismus, commonly known as squint, is a condition where the eyes do…
The Critical Role of Central Corneal Thickness in Eye Health
The human eye is a complex and delicate organ, and every part of it plays an important role in maintaining clear vision. One such important aspect of eye health is…
COLOUR VISION DEFICIENCY
Colour Vision Deficiency (CVD), commonly known as colour blindness, is a visual impairment where an individual has difficulty distinguishing certain colours. It occurs due to the improper functioning of cone…
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