Skip to main content

Trichiasis - Causes, Signs and symptoms, Complications and treatment of Trichiasis.


The term trichiasis means the abnormal direction of the eyelashes. The abnormal lashes rub against the corneal surface of the eyeball with resultant irritation, watering and potential damage to the cornea.

All causes of entropion (entropion = lid margins turn inward) produce trichiasis, for example, spasm of the muscle of riolan, fibrosis of palpebral conjunctiva, loss of tone and elasticity of lid margins, Steven Johnson's syndrome.
Pure trichiasis occurs in the following conditions
1. Congenital Trichiasis: It is also called Distichiasis. In this disorder, an extra row of cilia is present behind the grey line in the place of ducts of the meibomian glands. Meibomian glands are absent.
2. Acquired Causes:
a) Trachoma, due to fibrosis distorting the follicles.
b) Ulcerative blepharitis: due to fibrosis near the follicles.

Symptoms and signs:
1. Sandy or foreign body sensation
2. Photo-phobia
3. Lacrimation (watering)

1. Chronic conjunctivitis
2. Conjunctival ulceration
3. Epithelial plaque
4. Corneal epithelial defects
5. Superficial vascularization
6. Epidermoid change in cornea
4. Secondary bacterial infection.

Pure trichiasis is treated by operation.
1. If the upper lid is involved then it is corrected by "Van-Millengen's operation" which consist of displacing the rubbing lashes by placing a mucus graft in the grey line.
2. If lower lid is involved then it is corrected by "Webster's operation" in which a mucus graft is placed in an incision which is made in sulcus subtrasalis.
3. If rubbing lashes are more than four then they are treated by.
a) Thermal coagulation
b) Diathermy
c) Chemical coagulation (NaOH)
d) Electrolysis.

Popular posts from this blog

Human Parasites, Types of Parasites, and Classification

Parasite: A parasite is a living organism which gets nutrition and protection from another organism where it lives. Parasites enter into the human body through mouth, skin and genitalia. In this article, we will generally discuss the types and classification of parasites. It is important from an academic point of view. Those parasites are harmful, which derives their nutrition and other benefits from the host and host get nothing in return but suffers from some injury. Types of Parasites Ecto-parasite: An ectoparasite lives outside on the surface of the body of the host. Endo-parasite: An endo-parasite lives inside the body of the host, it lives in the blood, tissues, body cavities, digestive tract or other organs. Temporary parasite: A temporary parasite visits its host for a short period of time. Permanent parasite: Permanent parasite lives its whole life in the host. Facultative parasite: A facultative parasite can live both independently and dependently. It lives in the

How to taper off, wean off beta blocker, atenolol, Propranolol, Metoprolol

Beta blockers include, atenolol (Tenormin), propranolol (Inderal ) and metoprolol (Lopressor) and are used to treat high blood pressure, certain cardiac problems, migraine and few other conditions. People usually take atenolol, propranolol or metoprolol for many years as a treatment of high blood pressure or after having an episode of heart attack . Sometimes, it becomes necessary to withdraw these beta blockers due to their potential side effects that trouble the patients or sometimes doctor wants to change the drug and shift the patient to some other anti-hypertensive medicine. No matter whatever the cause is, whenever, a patient who has been using a beta blocker for a long period of time, and he needs to be stopped from further usage of that beta blocker, must not stop taking it. One should taper off the dose of a beta blocker. Now a question arises how to wean off or taper off a beta blocker? The method of tapering off beta blocker varies from individual to individual. Allow you

Difficulty in standing up from a sitting or squatting position, Causes & Solution

People who feel it difficult to stand up from a sitting or squatting position may have problem in one or more of the following structures. 1. Knee joint 2. Muscles of legs, thighs or buttock 3. Muscles of arms 4. Cerebellum Let’s now explain one by one, what kind of problems in above structures may cause difficulty in standing up from a sitting or squatting position. 1. How do problems in knee joints lead to difficulty in standing up? Knee joint is one of the primary and most affected joint that takes part in standing up. Other joints that take part are hip, ankle, knee, elbow, wrist and shoulder joint. Knee joint gets the most strain , and also knee joint is comparatively less supported. That’s why usually it’s the knee joint that starts to cry first because of arthritis. Knee joint arthritis causes long term knee pain , that makes the movement difficult at knee joint. Arthritis also makes the knee joint stiffer and slower and its range of motion also decreases. All these affects coll