Corneal sentence example
Corneal abrasions account for 10 percent of ocular emergency care.
In a poor African country, the major blinding conditions are likely to be cataract and corneal scar.
More males are treated for corneal abrasions than are females.
If someone suffers a corneal abrasion through an accident, does padding the eye with an eye patch help it heal?
Any pain is likely to be the result of corneal abrasion arising from removal attempts.Advertisement
In the adult mammalian eye, stem cells are known to be present at the corneal limbus, and the ciliary marginal zone.
An example of (2) would be a study of risk factors for uveal melanoma, or corneal ulcers.
In patients with keratoconjunctivitis sicca punctal occlusion reduces corneal surface staining (Turberville et al, 1982 and Willis et al, 1987 ).
For example, trauma or the effect of corneal opacity on the ability to diagnose cataract.
This was interpreted as evidence of local disorder in the array of collagen fibrils that comprise the corneal stroma.Advertisement
Depth of the anterior chamber at the temporal limbus was graded as a percentage fraction of peripheral corneal thickness.
Using Aber University connections enabled me to get a supply of Equine corneas to assist my research into corneal transparency!
Using Aber University connections enabled me to get a supply of Equine corneas to assist my research into corneal transparency !
If the cat has corneal ulcers, your vet may prescribe antiviral eye drops.
Surgery can be used for corneal transplantation or to correct eyelid deformities.Advertisement
A corneal abrasion occurs when there is a loss of cells from the epithelium or surface of the cornea.
A corneal abrasion heals by the movement of neighboring epithelial cells, which slide over the wounded area, and through a cell division process called mitosis, which fill in the abraded area with new epithelial cells.
But if a corneal abrasion is deep and penetrates the next layer of the cornea, then scarring is possible and complete healing of the abrasion may be delayed as long as three months.
The incidence of non-penetrating injuries to the eye, which includes corneal abrasions, is 1.57 percent per year.
Common causes of corneal abrasions include fingernails, make-up implements, paper cuts, plant material, including tree branches, animal scratches, cigarettes, inverted eyelashes, and blunt trauma, such as that with a knife or with scissors.Advertisement
Children are most likely to get a corneal abrasion while playing, while adults are more likely to sustain an abrasion in the workplace.
Pain, irritation, tearing, red eye, twitching of the eye, decreased vision, and sensitivity to bright lights are common complaints that accompany a corneal abrasion.
Very rarely, nausea is experienced due to the pain associated with a corneal abrasion.
Any redness or foreign body sensation, especially if only one eye is affected, should be evaluated promptly for a corneal abrasion.
If a corneal abrasion is not treated appropriately, scarring and ulceration of the corneal are possible.Advertisement
A corneal abrasion should be treated by a healthcare practitioner capable of evaluating eye conditions.
Herpes simplex, recurrent corneal erosion (RCE), and acanthamoeba infections are other conditions that can mimic a corneal abrasion but which require very different treatments.
The individual with a corneal abrasion will usually report a known trauma to the eye area.
To diagnose a corneal abrasion, a topical anesthetic with a yellow dye called flourescein is placed into the eye.
If the cornea has been perforated, then the patient is referred to a corneal specialist for surgery.
If the corneal abrasion is very small and superficial, then the application of mild antibiotic drops three to four times a day for a few days to a week is sufficient to prevent an infection.
The pain of a corneal abrasion can be treated with drugs such as homatropine which keep the eye in a dilated state and stop the spasm of the iris, a major cause of discomfort for the individual with a corneal abrasion.
For many years the standard treatment for a corneal abrasion included patching.
Controlled studies have demonstrated that patching a corneal abrasion does not improve healing either in children or adults and that patching of an eye may make walking difficult.
For the contact lens wearer with a corneal abrasion, contact lens wear must be discontinued for at least one week and glasses must be worn.
Treatment of a corneal abrasion with over-the-counter (OTC) drugs advertised to decrease redness should not be used to self treat corneal abrasions.
Corneal abrasions usually heal within a week, but complications can occur.
Up to 50 percent of those with a corneal abrasion develop a uveitis or inflammation inside the eye.
Approximately 10 to 25 percent of those with corneal abrasions will develop recurrent corneal erosion (RCE) a condition in which the epithelium of the cornea pulls off because it did not heal properly or completely.
The probability of corneal ulcer development from a corneal abrasion increases tenfold in contact lens wearers for those who use extended wear contacts, over those who remove their contacts as night.
For those who engage in welding, eye protection, including the use of helmets, decreases the incidence a corneal abrasions caused by welding burns.
Rarely do corneal abrasion lead to loss of vision, but any trauma to the eye must be evaluated by a healthcare practitioner for the possibility of an abrasion.
If the corneal abrasion is due to contact lens abuse, then the consequences of further misuse of contact lenses must be thoroughly discussed with the eye care practitioner.
Common physical problems include corneal clouding, heart abnormalities, and orthopedic difficulties involving their hands and back.
With a milder form of the disorder, individuals tend to be shorter than expected for their age, develop corneal clouding, and live longer.
Wearing contact lenses increases the risk of corneal damage and eye infections.
Patients may also have cataracts, drooping eyelids (ptosis), or corneal problems such as glaucoma.
Other techniques to correct myopia include photorefractive keratectomy (PRK), radial keratomy (RK), laser epithelial keratomileusis (LASEK), intraocular lens implants and intrastromal corneal rings.
Another diagnostic procedure involves taking a corneal impression in which a swab or slide is pressed lightly against the cornea of the eye to determine whether viral material is present.
When, towards the end of his student-days in Berlin, he was acting as clinical assistant in the eye department of the Berlin Hospital, he noticed that in keratitis and corneal wounds healing took place without the appearance of plastic exudation.
For this reason it is used to remove corneal opacities, deafness due to thickening of the membrane, stricture of the oesophagus and hypertrophy of the pylorus, it has also been successful in the treatment of adhesive parametritis.
Corneal astigmatism is when the cornea is a distorted shape and lenticular astigmatism occurs when the lens is distorted.
However, it is anticipated that improved compensation for corneal birefringence will result in an improved discriminating ability.
Confusion often arises over the use of the term " corneal dystrophy " in dogs.
Assuming the corneal thickness = 1 unit, assess the width of the " aqueous gap " from corneal endothelium to iris.
Epstein Barr Virus The black stitching holds a corneal graft in place.
When any trauma to the corneal epithelium occurs, cells are lost or destroyed and pain is immediately sensed.