Medical dictionary

What are extrasystoles? Extrasystoles, or premature ventricular contractions (PVCs), are a type of cardiac arrhythmia. They occur whenever a contraction stimulus is sent ahead of time from the sinoatrial node in the heart, which is the normal heartbeat initiator, giving a rather unpleasant sensation of a “skipped heartbeat” or palpitations in the chest. Prognosis of extrasystoles

What is an eyebrow transplant?   An eyebrow transplant is similar to a hair transplant. It involves taking hair from another part of the body and surgically inserting it to make the eyebrows look fuller. Not only do eyebrows play an important aesthetic role, but they also act as a barrier protecting the eyes from sweat and other moisture.   How does eyebrow transplant

What is eye cancer? Eye cancer, otherwise referred to as ocular oncology, encompass all forms of cancer that affect the eyelids, eyes and eye orbit. All eye tumours require early and thorough evaluation by an ophthalmologist. These tumours can be benign or malignant. In most cases, they are benign, but tumours can grow larger over time and cause eye problems due to the compr

What is an eye examination?    An eye examination is a series of tests which are usually conducted by an ophthalmologist (eye doctor), or other professionals such as optometrists. There are different types of eye examination to assess different parts of people's vision, and it is recommended that all people should have periodic eye examinations to check eye health and detect an

What are eye flashes? Eye flashes appear in the visual field like sparks of light. They don’t happen externally from sources of light around you, they happen from inside the eye. They usually aren’t a sign of problems; however, they can be a warning for some conditions. People who have eye flashes may also have eye floaters. Changes in the vitreous gel (the liquid that f

What are eye floaters? Eye floaters, medically known as myodesopsia, are floaters that move across your field of vision. They can be many different shapes: lines, shadows, dots, and cobwebs among others. It is one of the main reasons that people visit an ophthalmologist.   Floaters are condensations of the vitreous, which is the gel-like substance in the back of the eye. T

What is eyelid cancer?Eyelid cancer is a tumour that affects either the skin or glands of the eyelid. Most eyelid cancers are recognised as skin cancer. Your eyelid skin is the thinnest and most sensitive area of skin on your body that can get damaged easily by too much sun exposure. The most common type of eyelid cancer is known as basal cell carcinomas: a slow-growing cancer that typic

What are eyelid lumps?   Eyelid lumps can take different forms. There are a number of different types of eyelid lumps, which have varying causes. Examples include: Stye Chalazion (plural: chalazia) Insect bite Swelling due to injury/after an operation Chickenpox or shingles Mole Freckle Xanthelasma     What are the symptoms of eyeli

What is eyelid malposition? Eyelid malposition occurs when the lids become abnormally positioned due to whole host of causes. This group of disorders can often result in visual disturbance and discomfort which may become irreparable. Certain elements of these conditions can lead to changes of appearance and aesthetic concerns.   What are the most common types of eyelid malpositi