Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


Lecture notes, cheat sheets
Free library / Directory / Lecture notes, cheat sheets

Eye diseases. Inflammation of the lacrimal gland (most important)

Lecture notes, cheat sheets

Directory / Lecture notes, cheat sheets

Comments on the article Comments on the article

Table of contents (expand)

15. Inflammation of the lacrimal gland

With the pathology of the lacrimal gland, there may be increased tearing or, conversely, dry eyes. However, pain and size change are more often determined. There are dacryadenitis in the form of sharp inflammatory changes in the eyelids and conjunctiva or cysts of the lacrimal gland, resembling translucent tumors of various sizes.

Palpation of the lacrimal gland area is performed through the skin of the upper eyelid, while determining its consistency, size and location.

More often, changes are noted in the lacrimal ducts. The study of their condition begins with examination of the lower lacrimal opening. It usually faces the eyeball and becomes visible if you bend the lower eyelid slightly. Atresia of the lacrimal openings, their dislocation, and narrowing may be detected, which is accompanied by impaired absorption of tears and the appearance of lacrimation. In old age, inversion of the lacrimal punctum is often observed. If there are no changes in the lacrimal opening, then lacrimation may be due to pathology of the lacrimal canaliculi or other parts of the lacrimal ducts. To determine the state of the main function of the lacrimal ducts (the passage of tears through the lacrimal canaliculi and its discharge into the nose), a color test is used. Passing a blunt needle or conical probe into the lacrimal sac before washing it also serves as a diagnostic technique, as it allows one to judge the presence of narrowing of the tubule or obstacles in it. Rinsing is carried out after instillation of a 0,5% solution of dicaine (1% lidocaine) into the conjunctival cavity. Dacryoadenitis is inflammation of the lacrimal gland.

It can be both acute and chronic. It occurs mainly due to endogenous infection with measles, scarlet fever, mumps, typhoid fever, rheumatism, tonsillitis, influenza. The process is often one-sided.

If in the lateral part of the upper eyelid, according to the localization of the lacrimal gland, there is swelling and the upper eyelid acquires an S-shape, palpation in this area is marked by compaction and pain, swelling of the mucous membrane of the eyeball is noted (chemosis), sometimes yellowish areas of suppuration of the gland or opened abscesses on the side of the conjunctiva, purulent contents are released into the conjunctival cavity, and upward and outward mobility of the eye is limited, regional lymph nodes are enlarged and painful, this indicates dacryoadenitis. Sharp swelling, pain, redness of the outer part of the upper eyelid. The palpebral fissure takes on a changed shape. Redness and swelling of the conjunctiva of the eyeball in the upper outer region are noted. There may be a downward and inward displacement of the eye and a limitation of its mobility. The preauricular regional lymph nodes are enlarged and painful. However, more often the disease is benign.

The goal of treatment is to combat the common disease. In an acute process, antibiotics are prescribed (ampicillin, oletethrin, metacycline in four to six doses), sulfonamides, and symptomatic agents.

Author: Shilnikov L.V.

<< Back: Infectious and viral eye lesions

>> Forward: Inflammation of the tubules and lacrimal sac

We recommend interesting articles Section Lecture notes, cheat sheets:

History of economic thought. Lecture course

Fundamentals of social work. Crib

Internal illnesses. Lecture notes

See other articles Section Lecture notes, cheat sheets.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

Random news from the Archive

Window panes generate electricity 16.07.2014

Researchers at the Massachusetts Institute of Technology (MIT) have come up with a new way to use ordinary windows. Thanks to the work of scientists, it is possible to use windows as a source for the production of electrical energy.

The basis of the new development is photocells that cover the window on both sides. They are created using organic molecules that need infrared radiation to produce energy. In this case, visible light passes through them. The electricity obtained in this way can be used to operate various devices.

Attempts to create transparent solar panels have been made before, but the resulting batteries either had a very low efficiency (less than 1%), or did not transmit light well enough, which is not the most suitable option for window glass.

MIT researchers have developed a unique cell chemistry that delivers high visible light transmission when partially interacting with a reflective coating, and is more efficient than previous versions.

Developers have achieved to date an efficiency of only 1,7% of the ability to absorb solar panels. In the future plans of the group - to achieve an efficiency indicator of 12%.

Other interesting news:

▪ Wireless Implant for Remote Brain Control

▪ Seat belt that unfastens in the water

▪ The warmer it gets in cities, the less carbon dioxide the trees absorb.

▪ microphone in ear

▪ Tsunami pacified by mathematics

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Radio - for beginners. Article selection

▪ article Not a penny for the soul. Popular expression

▪ article Who won a Pyrrhic victory long before King Pyrrhus? Detailed answer

▪ article Yew berry. Legends, cultivation, methods of application

▪ Siren article. Encyclopedia of radio electronics and electrical engineering

▪ article Protecting the UPS battery from overcharging. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024