Ophthalmology

Dry eye is a condition in which there are insufficient tears to lubricate and nourish the eye. Tears are necessary for maintaining the health of the front surface of the eye and for providing clear vision. People with dry eyes either do not produce enough tears or have a poor …

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Introduction  Tired eyes and headaches are common symptoms and annoying conditions which may be associated with eye problems such as: Accommodation and convergence dysfunction Refractive error Excessive computer use Optic nerve diseases such as Glaucoma and Papiloedema What Is Accommodation And Convergence? Crystalline lens helps the eye to produce a …

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The effect of lasers on ocular tissues can be the following: Thermal effects Photo-disruptive effects Photo-ablative effects An argon laser is a thermal laser. The laser energy is absorbed by the target tissue and is converted to heat and the tissue is coagulated, giving rise to charred rough edges. A …

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Cataract is a condition whereby the clear lens became cloudy. It is like a frosted window, which makes the view outside the window becomes hazy. Unfortunately, there is no medications, eyedrop, exercise or glasses that can cure cataract. The definative treatment for cataract is surgery. The original lens will be …

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Clear vision is the result of light rays passing through the cornea, pupil and lens and focusing directly upon the retina. Sometimes light rays focus either in front of or behind the retina. This results in ‘refractive errors’ such as near-sightedness (myopia), far-sightedness (hyperopia), astigmatism. These conditions cause blurred vision. …

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Low vision is a condition where reduced level of vision vision and/or visual fields constricted and cannot be fully corrected by either medical and/or surgical treatment, using glasses or contact lenses in both eyes. Unlike a person who is blind, a person with low vision has some useful sight. However, …

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Cases of foreign bodies in the eyes are quite commonly seen. In most cases, the foreign bodies are found under the eyelid or on top of the cornea where they can be easily removed. However, foreign body can enter the eyeball through perforating wound following penetrating eye injury. Foreign bodies …

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The eyelid margin contains small oil-producing glands that help to lubricate the surface of the eyeball and eye lashes that help to trap dust from entering the eye. Stye or external hordeolum is an acute small staphylococcal abscess of eyelash follicle. On the other hand, retention of oil due to …

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Squint (also known as strabismus) is an imbalance of eye muscles that cause one or both eyes to be out of alignment. It can occur at birth, during childhood and/or later in adulthood. Squint that develops in adulthood is frequently a result of an underlying vascular disease such as diabetes …

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Painful red eye usually indicates severe eye problem that need immediate medical attention, as some conditions may cause permanent blindness if treatment is delayed. Common and important causes of painful red eye include corneal ulcer, acute glaucoma and uveitis. 1. Corneal ulcer The cornea is the central, outermost layer of …

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