Corneal ulcers and infections?

Corneal ulcers and infections?
by

1 Answer

Answer :

DefinitionThe cornea is the transparent area at the front of the eyeball. A corneal ulcer is an erosion or open sore in the outer layer of the cornea. It is associated with infection.See also: Corneal injuryAlternative NamesBacterial keratitis; Fungal keratitis; Acanthamoeba keratitis; Herpes simplex keratitisCauses, incidence, and risk factorsCorneal ulcers are most commonly caused by an infection with bacteria, viruses, fungi, or parasite. Other causes include:Abrasions (scratches)Foreign bodies in the eyeInadequate eyelid closureSeverely dry eyesSevere allergic eye diseaseVarious inflammatory disordersContact lens wear, especially soft contact lenses worn overnight, may cause a corneal ulcer. Herpes simplex keratitis is a serious viral infection. It may cause repeated attacks that are t
by
selected by

Related questions

Corneal sensations are diminished in: a. Herpes simplex b. Conjunctivitis c. Fungal infections d. Marginal keratitis

Description : Corneal sensations are diminished in: a. Herpes simplex b. Conjunctivitis c. Fungal infections d. Marginal keratitis

Last Answer : ANSWER: A  

The toxicity spectrum of aspirin does not include (a) Increased risk of encephalopathy in children with viral infections (b) Increased risk of peptic ulcers (c) Hyperprothrombinemia (d) Metabolic acidosis (e) Respiratory alkalosis

Description : The toxicity spectrum of aspirin does not include (a) Increased risk of encephalopathy in children with viral infections (b) Increased risk of peptic ulcers (c) Hyperprothrombinemia (d) Metabolic acidosis (e) Respiratory alkalosis

Last Answer : Ans: C

What is the corneal scale ?

Description : What is the corneal scale ?

Last Answer : For fine measurement, when a scale is drawn using a straight line connecting the opposite angles of a rectangle , it is called corneal scale. This scale is named after the diagonal connecting the ... is also known as Gunter's Scale because the surveyor Gunter used it extensively in land surveying .

What is the corneal scale ?

Description : What is the corneal scale ?

Last Answer : For fine measurement, when a scale is drawn using a straight line connecting the opposite angles of a rectangle , it is called corneal scale. This scale is named after the diagonal connecting the ... is also known as Gunter's Scale because the surveyor Gunter used it extensively in land surveying .

Corneal transplant?

Description : Corneal transplant?

Last Answer : DefinitionThe cornea is the clear surface on the front of the eye. A corneal transplant is surgery to replace the cornea with tissue from a donor. It is one of the most common transplants done. ... your cornea. Then your surgeon will sew the donated cornea onto the opening of your eye. Your

Corneal injury?

Description : Corneal injury?

Last Answer : DefinitionCorneal injury describes an injury to the cornea, the crystal clear (transparent) tissue covering the front of the eye.See also: Corneal ulcers and infectionsCauses, incidence, and risk ... if you overuse or have ill-fitting contact lenses.Penetrating (deep) corneal injuries may oc

In Hunter’s syndrome (A) There is progressive corneal opacity (B) Keratan sulphate is excreted in the urine (C) Enzyme defective is arylsulphatase B (D) Hearing loss is perceptive

Description : In Hunter’s syndrome (A) There is progressive corneal opacity (B) Keratan sulphate is excreted in the urine (C) Enzyme defective is arylsulphatase B (D) Hearing loss is perceptive

Last Answer : Answer : D

Corneal vascularisation is found in deficiency of the vitamin: (A) B1 (B) B2 (C) B3 (D) B6

Description : Corneal vascularisation is found in deficiency of the vitamin: (A) B1 (B) B2 (C) B3 (D) B6

Last Answer : Answer : B

An important finding in Neimann-Pick disease is (A) Leukopenia (B) Cardiac enlargement (C) Corneal opacity (D) Hepatosplenomegaly

Description : An important finding in Neimann-Pick disease is (A) Leukopenia (B) Cardiac enlargement (C) Corneal opacity (D) Hepatosplenomegaly

Last Answer : Answer : D

The most suitable mydratic for a patient of corneal ulcer is (a) Atropine sulfate (b) Homatropine (c) Cyclopentolate (d) Tropicamide

Description : The most suitable mydratic for a patient of corneal ulcer is (a) Atropine sulfate (b) Homatropine (c) Cyclopentolate (d) Tropicamide

Last Answer : Ans: A

What is the process of corneal transplan- tation called?

Description : What is the process of corneal transplan- tation called?

Last Answer : Keratoplasty

The following are true about corneal sensation: a. the sensation is greatest at the apex and diminishes towards the limbus. b. the temporal half of the cornea is more sensitive than the nasal half c. the Bonnet-Cochet aesthesiometer gives quantitative measure of the degree of hypoaesthesia d. all above

Description : The following are true about corneal sensation: a. the sensation is greatest at the apex and diminishes towards the limbus. b. the temporal half of the cornea is more sensitive than the ... c. the Bonnet-Cochet aesthesiometer gives quantitative measure of the degree of hypoaesthesia d. all above

Last Answer : all above

The following cells contribute the wavefronts of the flash ERG: a. retinal pigment epithelium b. corneal endothelium c. photoreceptors d. ganglion cell

Description : The following cells contribute the wavefronts of the flash ERG: a. retinal pigment epithelium b. corneal endothelium c. photoreceptors d. ganglion cell

Last Answer : photoreceptors

With regard to the cornea: a. photokeratitis occurs with wavelength of 270nm b. microvilli are found in the outer layer of the epithelium c. the turnover of the corneal epithelium typically takes 30 days d. the corneal epithelium is about 10 layers in thickness

Description : With regard to the cornea: a. photokeratitis occurs with wavelength of 270nm b. microvilli are found in the outer layer of the epithelium c. the turnover of the corneal epithelium typically takes 30 days d. the corneal epithelium is about 10 layers in thickness

Last Answer : photokeratitis occurs with wavelength of 270nm

The corneal stroma: a. measures 500 um thick b. transmits 90% of the incoming light c. derives most of its oxygen from the precorneal tear film d. is acellular which accounts for its transparency

Description : The corneal stroma: a. measures 500 um thick b. transmits 90% of the incoming light c. derives most of its oxygen from the precorneal tear film d. is acellular which accounts for its transparency

Last Answer : measures 500 um thick

The endothelium: a. maintains the integrity of the corneal stroma through an ATP-Na+, K+-dependent pump b. receives its nutrient from the blood vessels surrounding the cornea c. undergoes multiplication in response to trauma d. contains tight junction between adjacent endothelium

Description : The endothelium: a. maintains the integrity of the corneal stroma through an ATP-Na+, K+-dependent pump b. receives its nutrient from the blood vessels surrounding the cornea c. undergoes multiplication in response to trauma d. contains tight junction between adjacent endothelium

Last Answer : maintains the integrity of the corneal stroma through an ATP-Na+, K+-dependent pump

True statements about chloroquine include: a. is safer than hydroxychloroquine at equivalent dose b. can cause corneal deposition c. causes posterior subcapsular cataract d. chloroquine is bound to the melanin of the retinal pigment epithelium e. causes reversible toxic maculopathy

Description : True statements about chloroquine include: a. is safer than hydroxychloroquine at equivalent dose b. can cause corneal deposition c. causes posterior subcapsular cataract d. chloroquine is bound to the melanin of the retinal pigment epithelium e. causes reversible toxic maculopathy

Last Answer : can cause corneal deposition

The following structures are of ectodermal origin: a. the retina and its retinal pigment epithelium b. iris stroma c. the sclera d. the ciliary muscle e. the corneal stroma

Description : The following structures are of ectodermal origin: a. the retina and its retinal pigment epithelium b. iris stroma c. the sclera d. the ciliary muscle e. the corneal stroma

Last Answer : the retina and its retinal pigment epithelium

Reflexes associated with the animal nerves include a. corneal reflex b. papillary reflex c. auditory reflex d. all of them

Description : Reflexes associated with the animal nerves include a. corneal reflex b. papillary reflex c. auditory reflex d. all of them

Last Answer : all of them

The cranial nerve that is responsible for facial sensation and corneal reflex is the _____________________ nerve. a) trigeminal The trigeminal (V) cranial nerve is also responsible for mastication.

Description : The cranial nerve that is responsible for facial sensation and corneal reflex is the _____________________ nerve. a) trigeminal The trigeminal (V) cranial nerve is also responsible for mastication. b) ... The facial nerve is responsible for salivation, tearing, taste, and sensation in the ear.

Last Answer : a) trigeminal The trigeminal (V) cranial nerve is also responsible for mastication.

If a patient being anaesthetised with ether is unconscious, has regular respiration, blood pressure and heart rate are normal, corneal reflex is present and eyeballs are roving, the patient is in: A. Stage II B. Stage III plane 1 C. Stage III plane 2 D. Stage III plane 3

Description : If a patient being anaesthetised with ether is unconscious, has regular respiration, blood pressure and heart rate are normal, corneal reflex is present and eyeballs are roving, the patient is in: A. Stage II B. Stage III plane 1 C. Stage III plane 2 D. Stage III plane 3

Last Answer : B. Stage III plane 1

Choose the local anaesthetic that is specifically used to produce corneal anaesthesia for tonometry: A. Tetracaine B. Oxethazaine C. Ropivacaine D. Benoxinate

Description : Choose the local anaesthetic that is specifically used to produce corneal anaesthesia for tonometry: A. Tetracaine B. Oxethazaine C. Ropivacaine D. Benoxinate

Last Answer : D. Benoxinate

The most suitable mydriatic for a patient of corneal ulcer is: A. Atropine sulfate B. Homatropine C. Cyclopentolate D. Tropicamide

Description : The most suitable mydriatic for a patient of corneal ulcer is: A. Atropine sulfate B. Homatropine C. Cyclopentolate D. Tropicamide

Last Answer : A. Atropine sulfate

The most suitable mydriatic for a patient of corneal ulcer is: A. Atropine sulfate B. Homatropine C. Cyclopentolate D. Tropicamide

Description : The most suitable mydriatic for a patient of corneal ulcer is: A. Atropine sulfate B. Homatropine C. Cyclopentolate D. Tropicamide

Last Answer : A. Atropine sulfate

Topical atropine is contraindicated in: a. Retinoscopy in children b. Iridocyclitis c. Corneal ulcer d. Primary angle closure glaucoma

Description : Topical atropine is contraindicated in: a. Retinoscopy in children b. Iridocyclitis c. Corneal ulcer d. Primary angle closure glaucoma

Last Answer : ANSWER: D

After 48 hours of a cataract extraction operation, a patient complained of ocular pain and visual loss. On examination, this eye looked red with ciliary injection, corneal oedema and absent red reflex. The first suspicion must be: a. Secondary glaucoma. b. Anterior uveitis. c. Bacterial endophthalmitis. d. Acute conjunctivitis

Description : After 48 hours of a cataract extraction operation, a patient complained of ocular pain and visual loss. On examination, this eye looked red with ciliary injection, corneal oedema and absent red ... a. Secondary glaucoma. b. Anterior uveitis. c. Bacterial endophthalmitis. d. Acute conjunctivitis  

Last Answer : ANSWER: C

A 30 years old male presents with a history of injury to the eye with a leaf 5 days ago and pain, photophobia and redness of the eye for 2 days. What would be the most likely pathology? a. Anterior uveitis b. Conjunctivitis c. Fungal corneal ulcer d. Corneal laceration

Description : A 30 years old male presents with a history of injury to the eye with a leaf 5 days ago and pain, photophobia and redness of the eye for 2 days. What would be the most likely pathology? a. Anterior uveitis b. Conjunctivitis c. Fungal corneal ulcer d. Corneal laceration

Last Answer : ANSWER: C

Irrespective of the etiology of a corneal ulcer, the drug always indicated is: a. Corticosteroid b. Atropine c. Antibiotics d. Antifungal

Description : Irrespective of the etiology of a corneal ulcer, the drug always indicated is: a. Corticosteroid b. Atropine c. Antibiotics d. Antifungal

Last Answer : ANSWER: B 

The commonest cause of hypopyon corneal ulcer is: a. Moraxella b. Gonococcus c. Pneumococcus d. Staphylococcus

Description : The commonest cause of hypopyon corneal ulcer is: a. Moraxella b. Gonococcus c. Pneumococcus d. Staphylococcus

Last Answer : ANSWER: C  

Bacteria, which can attack normal corneal epithelium: a. Neisseria gonorrhea. b. Staphylococcal epidermidis c. Moraxella lacunata. d. Staphylococcal aureus

Description : Bacteria, which can attack normal corneal epithelium: a. Neisseria gonorrhea. b. Staphylococcal epidermidis c. Moraxella lacunata. d. Staphylococcal aureus 

Last Answer : ANSWER: A

Herpes simplex keratitis is characterized by: a. Presence of pus in the anterior chamber b. No tendency to recurrence c. Corneal hyposthesia d. Tendency to perforate

Description : Herpes simplex keratitis is characterized by: a. Presence of pus in the anterior chamber b. No tendency to recurrence c. Corneal hyposthesia d. Tendency to perforate 

Last Answer : ANSWER: C

The sure diagnostic sign of corneal ulcer is a. Ciliary injection b. Blepharospasm c. Miosis d. Positive fluorescein test.

Description : The sure diagnostic sign of corneal ulcer is a. Ciliary injection b. Blepharospasm c. Miosis d. Positive fluorescein test.  

Last Answer : ANSWER: D 

Topical steroids are contraindicated in a case of viral corneal ulcer for fear of: a. Secondary glaucoma b. Cortical cataract. c. Corneal perforation d. Secondary viral infection.

Description : Topical steroids are contraindicated in a case of viral corneal ulcer for fear of: a. Secondary glaucoma b. Cortical cataract. c. Corneal perforation d. Secondary viral infection. 

Last Answer : ANSWER: C 

A female patient 18 years old, who is contact lens wearer since two years, is complaining of redness, lacrimation and foreign body sensation of both eyes. On examination, visual acuity was 6/6 with negative fluorescein test. The expected diagnosis can be: a. Acute anterior uveitis. b. Giant papillary conjunctivitis. c. Bacterial corneal ulcer. d. Acute congestive glaucoma

Description : A female patient 18 years old, who is contact lens wearer since two years, is complaining of redness, lacrimation and foreign body sensation of both eyes. On examination, visual acuity ... uveitis. b. Giant papillary conjunctivitis. c. Bacterial corneal ulcer. d. Acute congestive glaucoma  

Last Answer : ANSWER: B 

Tranta's spots are noticed in cases of: a. Active trachoma b. Bulbar spring catarrh c. Corneal phlycten d. Vitamin A deficiency

Description : Tranta's spots are noticed in cases of: a. Active trachoma b. Bulbar spring catarrh c. Corneal phlycten d. Vitamin A deficiency

Last Answer : ANSWER: B

Corneal Herbert's rosettes are found in: a. Mucopurulent conjunctivitis b. Phlyctenular keratoconjunctivitis c. Active trachoma d. Spring catarrh

Description : Corneal Herbert's rosettes are found in: a. Mucopurulent conjunctivitis b. Phlyctenular keratoconjunctivitis c. Active trachoma d. Spring catarrh

Last Answer : ANSWER: C  

Patching of the eye is contraindicated in: a. Corneal abrasion b. Bacterial corneal ulcer c. Mucopurulent conjunctivitis d. After glaucoma surgery

Description : Patching of the eye is contraindicated in: a. Corneal abrasion b. Bacterial corneal ulcer c. Mucopurulent conjunctivitis d. After glaucoma surgery 

Last Answer : ANSWER: C 

Which of the following organism can penetrate intact corneal epithelium? A. Strept pyogenes B. Staph aureus C. Pseudomonas pyocyanaea D. Corynebacterium diphtheriae

Description : Which of the following organism can penetrate intact corneal epithelium? A. Strept pyogenes B. Staph aureus C. Pseudomonas pyocyanaea D. Corynebacterium diphtheriae 

Last Answer : ANSWER: D

The color of fluorescein staining in corneal ulcer is: a. Yellow b. Blue c. Green d. Royal blue

Description : The color of fluorescein staining in corneal ulcer is: a. Yellow b. Blue c. Green d. Royal blue

Last Answer : ANSWER: C 

Irrespective of the etiology of a corneal ulcer, the drug always indicated is: a. Corticosteroids b. Cycloplegics c. Antibiotics d. Antifungals

Description : Irrespective of the etiology of a corneal ulcer, the drug always indicated is: a. Corticosteroids b. Cycloplegics c. Antibiotics d. Antifungals

Last Answer : ANSWER: B 

Can worry and stress really cause ulcers?

Description : Can worry and stress really cause ulcers?

Last Answer : Yes, probably. Not all ulcers. Need more research. Stress bad for sure. Read this and other articles. https://www.healthline.com/health/stress-ulcer

Can the body heal itself? #4 in the series: Ulcers (please see details inside)

Description : Can the body heal itself? #4 in the series: Ulcers (please see details inside)

Last Answer : The likelihood partly has to do with why the person has the ulcer. The majority of stomach ulcers are caused by the bacteria H. Pylori. You can do natural things to reduce the chance of ... likely to cure pancreatic cancer, and that particular cancer is almost always a death sentence within years.

Why does it seem that everyone has the H Pylori bacteria, which causes ulcers?

Description : Why does it seem that everyone has the H Pylori bacteria, which causes ulcers?

Last Answer : Here is a source. It says the following, H. pylori is commonly transmitted person-to-person by saliva. The bacteria can also be spread by fecal contamination of food or water. In developing ... become infected as children, and parents and siblings seem to play a primary role in transmission.

Does anybody know what to avoid eating with peptic ulcers?

Description : Does anybody know what to avoid eating with peptic ulcers?

Last Answer : Do you know that ulcers are the cause of your symptoms?

How can i get rid of mouth ulcers quick? bonjella isnt helping!

Description : How can i get rid of mouth ulcers quick? bonjella isnt helping!

Last Answer : Nothing will make them go away faster, but topical anaesthetics help the pain. Powdered alum will Hurt like hell briefly, then leave it numb.

What is the way to get rid of ulcers ?

Description : What is the way to get rid of ulcers ?

Last Answer : answer :. Honey- Honey reduces inflammation of the stomach. Honey also helps prevent other diseases. So you can eat one tablespoon of honey with breakfast every morning. 2. Garlic - If ... . It contains antibacterial substances that naturally reduce stomach ulcers. There are also many more systems.

Is Marlox plus medicine for ulcers ?

Description : Is Marlox plus medicine for ulcers ?

Last Answer : Yes Marlox plus medicine for Alzheimer's.

What are the problems with ulcers ?

Description : What are the problems with ulcers ?

Last Answer : 1. Flatulence and nausea and vomiting. 2. Burning of gastric bile. Weakness in the body 5. Abdominal pain, pain in the left or right side of the navel, these problems can occur, then they must be treated by a doctor.

Is there any medicine for mouth ulcers during 8 months of pregnancy ?

Description : Is there any medicine for mouth ulcers during 8 months of pregnancy ?

Last Answer : Since you are 6 months pregnant, it is not advisable to take any medicine without the advice of a doctor. And the lack of vitamins in the body causes sores on the face, so do not worry ... who are more deficient in vitamins, there is no problem in taking medicine with the advice of a gynecologist.

Mouth Ulcers: Causes and Remedies ?

Last Answer : Mouth ulcer is a very serious disease. This disease can cause terrible mouth cancer. If you have a mouth ulcer, it is difficult to eat any food and you have to go through a lot of pain. The exact ... . . Milk of Magnesia is much better if applied on the wound. It destroys the bacteria in the mouth.