Keratoconus - Contact lenses. Main article: Contact lens In keratoconic patients, contact lenses improve vision by means of tear fluid filling the gap between the irregular corneal surface and the smooth regular inner surface of the lens, thereby creating the effect of a smoother cornea. Traditionally, these lenses have been the "hard" or gas-permeable contact lens variety, although recently somewhat effective "soft" or hydrophilic lenses have become available. Also, recently developed are hybrid lenses which are hard in the centre and soft around the edges. These soft o ...

See also:

Keratoconus, Keratoconus - Symptoms and diagnosis, Keratoconus - Prevalence, Keratoconus - Prognosis, Keratoconus - Cause, Keratoconus - Treatment, Keratoconus - Contact lenses, Keratoconus - Corneal transplant, Keratoconus - Other surgical options, Keratoconus - Corneal ring segment inserts, Keratoconus - Radial keratotomy, Keratoconus - Possible complications, Keratoconus - Notes

Read more here: » Keratoconus: Encyclopedia II - Keratoconus - Treatment

The exact nature of the visual distortion introduced by keratoconus is most clearly seen with a high contrast field such as a point of light on a dark background – instead of seeing one point the person may see over 100 images spread out in a complex and random pattern. The pattern does not change from day to day, but over the seasons it often takes on new forms. Doctors tend not to ask exactly what the patient sees, but rather test the vision on a standard Snellen chart of progressively smaller letters. Definitive diagnosis is obtained using corneal topography, a non-invasive vi ...

See also:

Keratoconus, Keratoconus - Symptoms and diagnosis, Keratoconus - Prevalence, Keratoconus - Prognosis, Keratoconus - Cause, Keratoconus - Treatment, Keratoconus - Contact lenses, Keratoconus - Corneal transplant, Keratoconus - Other surgical options, Keratoconus - Corneal ring segment inserts, Keratoconus - Radial keratotomy, Keratoconus - Possible complications, Keratoconus - Notes

Read more here: » Keratoconus: Encyclopedia II - Keratoconus - Symptoms and diagnosis

Keratoconus - Corneal ring segment inserts. A recent alternative to corneal transplant is the insertion of intrastromal corneal ring segments manufactured by Addition Technology Inc. under the trade name of Intacs. A small incision is made in the periphery of the cornea and two segment arcs slid into the corneal stroma, the incision then being closed. The segments push against the curvature of the cornea, thus flattening the peak ...

See also:

Keratoconus, Keratoconus - Symptoms and diagnosis, Keratoconus - Prevalence, Keratoconus - Prognosis, Keratoconus - Cause, Keratoconus - Treatment, Keratoconus - Contact lenses, Keratoconus - Corneal transplant, Keratoconus - Other surgical options, Keratoconus - Corneal ring segment inserts, Keratoconus - Radial keratotomy, Keratoconus - Possible complications, Keratoconus - Notes

Read more here: » Keratoconus: Encyclopedia II - Keratoconus - Other surgical options

The movie opens with a spectacular and highly memorable CG shot of almost 3 minutes that shows a scale view of the entire Universe. It begins by zooming away from the Earth and through our solar system, through the Oort Cloud, then through the nebulae and stars in our galaxy, away from the Milky Way, through the Large Magellanic Cloud, through Andromeda, and through billions of other galaxies, finally ending up by coming out of the eye of young Ellie. Jena Malone, who played Young Ellie, has dark brown eyes, while Jodie Foster has blue eyes. Rather than have Malone wear blue contact lenses, computerized co ...

See also:

Contact film, Contact film - Plot summary, Contact film - Special effects, Contact film - Trivia

Read more here: » Contact film: Encyclopedia II - Contact film - Special effects

The movie opens with a spectacular and highly memorable CG shot of almost 3 minutes that shows a scale view of the entire Universe. It begins by zooming away from the Earth and through our solar system, through the Oort Cloud, then through the nebulae and stars in our galaxy, away from the Milky Way, through the Large Magellanic Cloud, through Andromeda, and through billions of other galaxies, finally ending up by coming out of the eye of young Ellie. Jena Malone, who played Young Ellie, has dark brown eyes, while Jodie Foster has blue eyes. Rather than have Malone wear blue contact lenses, computerized co ...

See also:

Contact film, Contact film - Plot summary, Contact film - Contact and religion, Contact film - Special effects, Contact film - Trivia

Read more here: » Contact film: Encyclopedia II - Contact film - Special effects

1) Contact: a) Uncertainty reduction - through eye contact, identification, opening disclosure, etc. b) Perceptual - notice how a person looks at the other and their body language. c) Interactional cues - nodding, maintaining eye contact, etc. d) Invitational - encouraging the relationship (ex. asking if they want to meet up later for coffee) e) Avoidance strategies - if one person discl ...

See also:

Interpersonal relationship, Interpersonal relationship - Stages of Relationship Formation, Interpersonal relationship - Types of interpersonal relationships, Interpersonal relationship - Factors affecting interpersonal relationships, Interpersonal relationship - Theories of interpersonal relationships

Read more here: » Interpersonal relationship: Encyclopedia II - Interpersonal relationship - Stages of Relationship Formation

The iris functions to restrict the amount of light entering the eye, so if it is absent, most individuals with aniridia are sensitive to bright outdoor light and their eyes may need protecting. This can be done with tinted spectacles, or with a contact lens which has an artificial iris painted onto it. Aniridia can be associated with other health and developmental problems. It can also be associated with other eye conditions such as: nystagmus, glaucoma, corneal disease, cataract, lens subluxation and optic nerve disease. Children born with aniridia will need to be closely monitored to ensur ...

See also:

Aniridia, Aniridia - Treatment, Aniridia - Types

Read more here: » Aniridia: Encyclopedia II - Aniridia - Treatment

1) Contact: a) Uncertainty reduction - through eye contact, identification, opening disclosure, etc. b) Perceptual - notice how a person looks at the other and their body language. c) Interactional cues - nodding, maintaining eye contact, etc. d) Invitational - encouraging the relationship (ex. asking if they want to meet up later for coffee) e) Avoidance strategies - if one person discloses and the other does n ...

See also:

Interpersonal relationship, Interpersonal relationship - Stages of Relationship Formation, Interpersonal relationship - Types of interpersonal relationships, Interpersonal relationship - Factors affecting interpersonal relationships, Interpersonal relationship - Theories of interpersonal relationships

Read more here: » Interpersonal relationship: Encyclopedia II - Interpersonal relationship - Stages of Relationship Formation

There are three common varieties of conjunctivitis, viral, allergic, and bacterial. Other causes of conjunctivitis include thermal and ultraviolet burns, chemicals, toxins, overuse of contact lenses, foreign bodies, vitamin deficiency, dry eye, dryness due to inadequate lid closure, exposure to chickens infected with Newcastle disease, epithelial dysplasia (pre-cancerous changes), and some conditions of unknown cause such as sarcoidosis. Viral conjunctivitis is spread by aerosol or contact of a variety of contagious viruses, in ...

See also:

Conjunctivitis, Conjunctivitis - Epidemiology, Conjunctivitis - Diagnosis, Conjunctivitis - Symptoms, Conjunctivitis - Signs, Conjunctivitis - Differential diagnosis, Conjunctivitis - Investigations, Conjunctivitis - Treatment and management

Read more here: » Conjunctivitis: Encyclopedia II - Conjunctivitis - Epidemiology

An optician is an eye care professional who provides lenses for the correction of vision defects. The lenses may be contact lenses, or held in a frame in front of the eye, rarely as a monocle or most frequently as a pair of glasses, also known as spectacles or eyeglasses. The main optical properties of the lenses are specified from a refraction prescription supplied by a person qualified to measure visual defects and write an appropriate corrective prescription. The licensing and nomenclature o ...

See also:

Optician, Optician - Eyecare opticians, Optician - Famous opticians, Optician - Scientific equipment opticians, Optician - Telescope opticians, Optician - Microscope opticians

Read more here: » Optician: Encyclopedia II - Optician - Eyecare opticians

Difluoroethane - Effects. Inhalation: Short term: symptoms of drunkenness Long term: no data Skin contact: Short term: blisters, frostbite Long term: no data Eye contact: Short term: irritation, blurred vision Long term: blindness Ingestion: Short term: frostbite long term: no data ...

See also:

Difluoroethane, Difluoroethane - Difluoroethane, Difluoroethane - Trade Names/Synonyms, Difluoroethane - Physical information, Difluoroethane - Safety, Difluoroethane - Effects, Difluoroethane - Sources

Read more here: » Difluoroethane: Encyclopedia II - Difluoroethane - Safety

Both fluorine and HF must be handled with great care and any contact with skin and eyes should be strictly avoided. All equipment must be passivated before exposure to fluorine. Contact with exposed skin may result in the HF molecule rapidly migrating through the skin and flesh into the bone where it reacts with calcium permanently damaging the bone, followed by cardiac arrest brought on by ...

See also:

Fluorine, Fluorine - Notable characteristics, Fluorine - Applications, Fluorine - History, Fluorine - Precautions, Fluorine - Preparation, Fluorine - Compounds

Read more here: » Fluorine: Encyclopedia II - Fluorine - Precautions

Viral conjunctivitis is spread by aerosol or contact of a variety of contagious viruses, including many that cause the common cold, so that it is often associated with upper respiratory tract symptoms. Clusters of cases have been due to transfer on ophthalmic instruments which make contact with the eye (e.g., tonometers) and have not been adequately sterilised. Allergic conjunctivitis occurs more frequently among those with allergic conditions, with the symptoms having a seasonal correlation. It can also be caused by all ...

See also:

Conjunctivitis, Conjunctivitis - Epidemiology, Conjunctivitis - Diagnosis, Conjunctivitis - Symptoms, Conjunctivitis - Signs, Conjunctivitis - Differential diagnosis, Conjunctivitis - Investigations, Conjunctivitis - Treatment and management

Read more here: » Conjunctivitis: Encyclopedia II - Conjunctivitis - Epidemiology

Transmission medicine - Droplet contact. Also known as the respiratory route, it is a typical mode of transmission among many infectious agents. If an infected person coughs or sneezes on another person the microorganisms, suspended in warm, moist droplets, may enter the body through the nose, mouth or eye surfaces. Diseases that are commonly spread by coughing or sneezing include (at least): Bacterial Meningitis Chickenpox Common cold Influenza Mumps Strep throat Tuberculosis Whooping cough < ...

See also:

Transmission medicine, Transmission medicine - Transmission symptoms and survival, Transmission medicine - Routes of transmission, Transmission medicine - Droplet contact, Transmission medicine - Fecal-oral transmission, Transmission medicine - Sexual transmission, Transmission medicine - Oral transmission, Transmission medicine - Transmission by direct contact, Transmission medicine - Vertical transmission, Transmission medicine - Iatrogenic transmission, Transmission medicine - The importance of routes of transmission

Read more here: » Transmission medicine: Encyclopedia II - Transmission medicine - Routes of transmission

Von Gloeden generally made different kinds of photographs: The ones that garnered the most widespread attention in Europe and overseas were usually relatively chaste, featured clothes like togas and generally downplayed their homoerotic implications. More explicit photos in which the boys were nude and which, because of eye contact or physical contact were more sexually suggestive were traded by the Baron "under the counter" to close friends. Still, considering the prudish and homophobic atmosphere of the time, it is remarkable ...

See also:

Wilhelm von Gloeden, Wilhelm von Gloeden - Biography, Wilhelm von Gloeden - Attitudes towards his work during his lifetime and later, Wilhelm von Gloeden - Other similar photographers at the time

Read more here: » Wilhelm von Gloeden: Encyclopedia II - Wilhelm von Gloeden - Attitudes towards his work during his lifetime and later

The R/S statement code for fuming hydrochloric acid (37%) is: R: 34-37 S: 26-36-45 The corresponding English language phrases are: Risks R: 34 Causes burns R: 37 Irritating to the respiratory system. Safety S: 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S: 36 Wear suitable protective clothing. S: 45 In case of accident or if you feel unwell, seek medical advice immediate ...

See also:

Risk and Safety Statements, Risk and Safety Statements - Example

Read more here: » Risk and Safety Statements: Encyclopedia II - Risk and Safety Statements - Example

Prevision Foresight, seeing an event with the inner eye before or at the time of its occurrence. As the inner eye is independent of the time sequence on which our physical eyes and minds act, it is aware of things which to our physical perceptions belong to the future.

Hence, if a contact is established between our consciousness and this inner sense, we may obtain a picture of events which have not yet come into the present. Events on the physical plane are the effects of causes which are preparing on invisible planes. The effect follows the cause -- not infallibly, but with varying degrees of probability.

Theosophy teaches an objective idealism, that while the universe in its phenomenal or manifested attributes is a product of maya, yet for all beings within such universe and subject to the sway of maya, events, manifestations, and similar things which occur are relatively real to their consciousness.

Thus to the eye of the spirit -- the awakened eye of Siva as it is called in the Orient -- all events whatsoever, past, present, or future, appear as in an eternal Now, a shadow cast up from the waves of maya to the consciousness of the said seeing eye, and it is this underlying fact which gives the power of prevision, true premonition, foresight, etc.

See also PROPHECY; PREMONITION

(See also: Prevision, Mysticism, Mysticism Dictionary, Occultism, Occultism Dictionary)

Volcanic ash is not poisonous, but inhaling it may cause problems for people whose respiratory system is already compromised by disorders such as asthma or emphysema. The abrasive texture can cause irritation and scratching of the surface of the eyes. People who wear contact lenses should wear glasses if they are experiencing an ash event. Furthermore, the combination of volcanic ash with the moisture in the lungs may create a substance akin to liquid cement. People should also take caution to filter the air they breathe with a damp cloth ...

See also:

Volcanic ash, Volcanic ash - Characteristics, Volcanic ash - Dangers, Volcanic ash - Ash and aviation, Volcanic ash - Atmospheric effects

Read more here: » Volcanic ash: Encyclopedia II - Volcanic ash - Dangers

He is a deal maker who trades in souls. Hiddukel's deal making skills are so great that it is said that he is the only being able to barter with Takhisis and come out in front. Hiddukel is the patron of evil businessmen. He is said to control all of the ill-gotten wealth in the world. He is also known for contacting and making deals with dying men, who in desperation accept anything. As a payment for his services, he asks the mortal to deliver souls of men. Young maidens and Knights of Solamnia are his weakness. He is portrayed as a grossly obese man with cold eyes and an oily smile. He also appears in the shape of a co ...

See also:

Hiddukel, Hiddukel - Background

Read more here: » Hiddukel: Encyclopedia II - Hiddukel - Background

Vastubhuta (Sanskrit) [from vastu substance, matter + bhuta having become from the verbal root bhu to become]

Substantial, material, essential stuff or matter. Most generally, the various vikritis, as the offspring or productions of prakriti, with an eye on the hosts of monads in their peregrinations through the substantial realms. Once these beings have contacted the realms of matter, they may be described as being vastubhuta (imbodying in or working in matter).

(See also: Vastubhuta, Mysticism, Mysticism Dictionary, Body mind and Soul)

Ghoul (from Arabic ghul, ghuwal)

In popular Arabic lore a class of evil beings, haunting the mountains and woods and preying upon mankind and animals. More specifically, the astral or astral-physical entities haunting cemeteries or burial grounds, with an eye upon the danger to humans or animals who come into contact with them. These Arabic ghouls are earth-bound kama-rupas of the most debased and material type, and parallel the Hindu preta of the lowest type, or even the pisachas, etc.

(See also: Ghoul, Mysticism, Mysticism Dictionary, Occultism, Occultism Dictionary)

Though the types of courtesy shown in a maze may vary, it is generally good to observe a few ground rules. Running, physical contact, covering sensors, climbing walls or maze elements, crowding, and using offensive language are frowned upon. The single most offensive thing you can do is to deliberately direct your laser into someone's eye. Intentional eyeshooting usually results in disqualification or expulsion from the game. ...

See also:

Lasertag, Lasertag - Lasertag History, Lasertag - The game of lasertag, Lasertag - Types of players, Lasertag - Lasertag systems, Lasertag - Types of games, Lasertag - Lasertag etiquette, Lasertag - Lasertag slang, Lasertag - External link

Read more here: » Lasertag: Encyclopedia II - Lasertag - Lasertag etiquette