Conjunctivitis: Chronic Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Conjunctivitis: Chronic. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Conjunctivitis: Chronic Indian Medical PG Question 1: Which of the following findings is typically NOT seen in a patient with allergic conjunctivitis?
- A. Watery discharge
- B. Itching
- C. Bilateral eye redness
- D. Purulent discharge (Correct Answer)
Conjunctivitis: Chronic Explanation: ***Purulent discharge***
- **Purulent discharge** (thick, yellowish, or greenish) is characteristic of **bacterial conjunctivitis** and is usually absent in allergic conjunctivitis.
- Allergic conjunctivitis typically presents with a **clear or watery discharge**.
*Watery discharge*
- **Watery discharge** is a very common symptom of **allergic conjunctivitis**, often accompanied by itching and redness.
- It results from the inflammatory response and increased lacrimation due to allergen exposure.
*Itching*
- **Ocular itching** is the hallmark symptom of allergic conjunctivitis and is considered its most distinctive feature.
- It is caused by the release of **histamine** and other inflammatory mediators from mast cells in response to allergens.
*Bilateral eye redness*
- **Bilateral conjunctival redness** (hyperemia) is a frequent finding in allergic conjunctivitis.
- This is due to **vasodilation** in response to the inflammatory process affecting both eyes, as airborne allergens often affect both simultaneously.
Conjunctivitis: Chronic Indian Medical PG Question 2: A 25-year-old male presents with recurrent bilateral conjunctival hyperemia and a gritty sensation. Likely diagnosis?
- A. Vernal keratoconjunctivitis (Correct Answer)
- B. Herpes keratitis
- C. Episcleritis
- D. Bacterial conjunctivitis
Conjunctivitis: Chronic Explanation: ***Vernal keratoconjunctivitis***
* This is the correct diagnosis as it perfectly matches the clinical presentation: **young male patient** (VKC has male predominance, especially in adolescents/young adults), **recurrent course** (VKC is a chronic allergic condition with seasonal exacerbations), and **bilateral involvement** with gritty sensation.
* VKC is a **severe form of allergic conjunctivitis** characterized by **bilateral conjunctival hyperemia**, intense itching, gritty sensation, photophobia, and mucoid discharge. The recurrent bilateral nature in a young male is pathognomonic.
*Herpes keratitis*
* Usually presents as **unilateral eye pain**, redness, and a characteristic **dendritic ulcer** on the cornea (seen with fluorescein staining), which is not described here.
* Caused by herpes simplex virus and typically has an acute presentation rather than recurrent bilateral conjunctival symptoms. Can lead to significant vision loss if untreated.
*Episcleritis*
* Characterized by **localized sectorial redness** in one eye, often in a radial pattern, and is usually **mild and self-limiting**.
* Typically causes minimal discomfort and does not commonly present with gritty sensation or recurrent bilateral involvement as the primary feature.
*Bacterial conjunctivitis*
* Typically presents with **purulent discharge** (thick yellow-green pus) and matting of eyelids, which is not mentioned in this patient's symptoms.
* While it causes redness and grittiness, it's usually **acute and unilateral or sequential bilateral** (one eye then the other), and resolves with topical antibiotics within days, unlike the recurrent chronic nature described here.
Conjunctivitis: Chronic Indian Medical PG Question 3: Arlt's line is seen in?
- A. Bacterial conjunctivitis
- B. Trachoma (Correct Answer)
- C. Vernal catarrh
- D. Allergic conjunctivitis
Conjunctivitis: Chronic Explanation: ***Trachoma***
- Arlt's line is a **subtarsal fibrous white line** seen on the upper tarsal conjunctiva, resulting from repeated episodes of inflammation and scarring in **trachoma**.
- This scarring can lead to **entropion** and **trichiasis**, causing corneal abrasion and potential blindness.
*Vernal catarrh*
- Characterized by giant papillae (cobblestone papillae) on the upper tarsal conjunctiva and **Horner-Trantas dots** at the limbus.
- It is an allergic condition, and while it causes conjunctival changes, it does not typically result in Arlt's line.
*Allergic conjunctivitis*
- Presents with itching, redness, tearing, and sometimes mild conjunctival swelling or papillae.
- It is an acute or chronic allergic reaction and does not cause the specific scarring pattern known as Arlt's line.
*Bacterial conjunctivitis*
- Typically presents with **purulent discharge**, redness, and lid crusting.
- While it causes acute inflammation, it usually resolves without the chronic scarring that leads to Arlt's line unless it is a severe, recurrent infection.
Conjunctivitis: Chronic Indian Medical PG Question 4: Phlyctenular conjunctivitis is primarily associated with hypersensitivity to which of the following?
- A. Staphylococcus (Correct Answer)
- B. Chlamydia
- C. Pneumococcus
- D. Aspergillus
Conjunctivitis: Chronic Explanation: ***Staphylococcus***
- **Phlyctenular conjunctivitis** is characterized by delayed (Type IV) hypersensitivity reactions to bacterial antigens, most commonly from **Staphylococcus aureus**.
- This condition often presents with small, nodular lesions (phlyctenules) on the conjunctiva or cornea, which are essentially collections of inflammatory cells responding to bacterial proteins.
- **Important note**: **Mycobacterium tuberculosis** is another well-documented cause of phlyctenular conjunctivitis, particularly in TB-endemic regions, and should be considered in the differential diagnosis.
- Other triggers include protein antigens from organisms colonizing the ocular surface.
*Chlamydia*
- While **Chlamydia trachomatis** can cause chronic conjunctivitis (e.g., trachoma, adult inclusion conjunctivitis), it does not typically lead to the distinct nodular lesions seen in phlyctenular conjunctivitis.
- Ocular chlamydial infections are primarily characterized by follicular conjunctivitis and pannus formation.
*Pneumococcus*
- **Streptococcus pneumoniae** (Pneumococcus) is a common cause of acute bacterial conjunctivitis, characterized by purulent discharge and redness.
- However, it is not associated with the specific delayed hypersensitivity reaction that defines phlyctenular conjunctivitis.
*Aspergillus*
- **Aspergillus** species are fungi and are more commonly implicated in fungal keratitis or allergic bronchopulmonary aspergillosis, particularly in immunocompromised individuals.
- Fungal infections of the conjunctiva are rare and do not typically manifest as phlyctenular conjunctivitis.
Conjunctivitis: Chronic Indian Medical PG Question 5: Identify the diagnosis based on the clinical image shown.
- A. Horner-Trantas spots
- B. Herbert's pits (Correct Answer)
- C. Pannus
- D. Corneal dystrophy
Conjunctivitis: Chronic Explanation: ***Herbert's pits***
- The image displays characteristic **pits at the limbus**, which are a hallmark of healed follicular conjunctivitis, specifically **Herbert's pits**.
- These pits are pathognomonic for **trachoma**, a chronic keratoconjunctivitis caused by *Chlamydia trachomatis*.
*Horner-Trantas spots*
- These are small, raised, gelatinous white dots found at the limbus, typically containing **eosinophils**.
- They are characteristic of **vernal keratoconjunctivitis**, an allergic inflammatory condition, and not seen in the provided image.
*Pannus*
- **Pannus** refers to the growth of **vascularized connective tissue** onto the cornea.
- While pannus is also a feature of trachoma, the image specifically shows distinct limbal pits, rather than diffuse vascularization.
*Corneal dystrophy*
- **Corneal dystrophies** are a group of inherited, bilateral, and progressive corneal disorders that manifest as opacities or structural changes in the cornea.
- The findings in the image, such as pits, are inflammatory in origin and distinct from the typically stromal or epithelial changes seen in corneal dystrophies.
Conjunctivitis: Chronic Indian Medical PG Question 6: Which of the following is not a treatment option for vernal keratoconjunctivitis?
- A. Steroids
- B. Chromaglycate
- C. Olopatadine
- D. Antibiotics (Correct Answer)
Conjunctivitis: Chronic Explanation: ***Antibiotics***
- **Vernal keratoconjunctivitis (VKC)** is a non-infectious, **allergic inflammatory condition** of the conjunctiva.
- Antibiotics are primarily used to treat bacterial infections and have **no direct role** in the management of VKC.
*Steroids*
- **Topical corticosteroids** (e.g., prednisolone, loteprednol, fluorometholone) are a mainstay of VKC treatment, especially for severe cases and acute exacerbations.
- They significantly reduce inflammation and associated symptoms by **suppressing the immune response**.
*Chromaglycate*
- **Sodium cromoglycate** is a **mast cell stabilizer** commonly used in the treatment of VKC.
- It works by preventing the degranulation of mast cells, thereby **inhibiting the release of inflammatory mediators** like histamine.
*Olopatadine*
- **Olopatadine** is a dual-acting medication that functions as both an **antihistamine** and a **mast cell stabilizer**.
- It provides rapid relief from itching and other allergic symptoms by blocking histamine receptors and stabilizing mast cells.
Conjunctivitis: Chronic Indian Medical PG Question 7: Inclusion conjunctivitis is caused by:
- A. Klebsiella species
- B. Chlamydia trachomatis (Correct Answer)
- C. Mycobacterium Leprae
- D. Adenovirus
Conjunctivitis: Chronic Explanation: ***Chlamydia trachomatis***
- **Inclusion conjunctivitis** is primarily caused by **Chlamydia trachomatis serovars D-K**.
- This form of conjunctivitis is characterized by follicular response and cytoplasmic inclusions seen in epithelial cells.
*Klebsiella species*
- **Klebsiella** are common bacteria that can cause a variety of infections, including pneumonia and urinary tract infections.
- While they can cause conjunctivitis, it is typically a bacterial conjunctivitis and not specifically referred to as inclusion conjunctivitis.
*Adenovirus*
- **Adenoviruses** are a common cause of **viral conjunctivitis**, which often presents with watery discharge and pharyngitis.
- Unlike *Chlamydia*, adenovirus infections do not form characteristic cytoplasmic inclusions in conjunctival cells.
*Mycobacterium Leprae*
- **Mycobacterium leprae** is the causative agent of **Leprosy**, a chronic infectious disease primarily affecting the skin, nerves, and upper respiratory tract.
- It does not directly cause conjunctivitis as its primary manifestation, although ocular complications can occur in advanced leprosy.
Conjunctivitis: Chronic Indian Medical PG Question 8: Features of vernal conjunctivitis are:
- A. Papillary hypertrophy
- B. Horner-Trantas spots
- C. Shield ulcer
- D. All of the options (Correct Answer)
Conjunctivitis: Chronic Explanation: ***All of the options***
- **Vernal conjunctivitis (VKC)** is a severe form of allergic conjunctivitis characterized by chronic inflammation of the conjunctiva, impacting the cornea in advanced stages.
- **Shield ulcers**, **Horner-Trantas dots**, and **papillary hypertrophy** are all classic clinical features observed in VKC.
*Shield ulcer*
- This is a **corneal complication** of severe vernal conjunctivitis, characterized by epithelial defects that can lead to significant pain and vision impairment.
- It develops due to corneal abrasion from the giant papillae on the upper tarsal conjunctiva and direct corneal toxicity from inflammatory mediators.
*Horner-Trantas spots*
- These are **gelatinous aggregations** of epithelial cells and eosinophils that appear as white dots at the limbus, particularly evident at the superior limbus.
- They are one of the **pathognomonic signs** of vernal conjunctivitis, indicating significant allergic inflammation.
*Papillary hypertrophy*
- Characterized by the development of **large, flattened papillae** (often described as "cobblestone" papillae) on the upper tarsal conjunctiva.
- This hypertrophy is a result of chronic inflammation and proliferation of mast cells, eosinophils, and lymphocytes in the conjunctival stroma.
Conjunctivitis: Chronic Indian Medical PG Question 9: Unilateral frontal blisters with upper lid edema and conjunctivitis is seen in?
- A. Herpes Simplex
- B. Herpes Zoster Ophthalmicus (Correct Answer)
- C. Neuroparalytic Keratitis
- D. Acanthamoeba Keratitis
Conjunctivitis: Chronic Explanation: ***Herpes Zoster Ophthalmicus***
- This condition is characterized by a **unilateral vesicular rash** (blisters) in the **trigeminal dermatome (V1)**, which includes the forehead and upper eyelid, along with significant **lid edema** and **conjunctivitis**.
- **Hutchinson's sign** (lesions on the tip, side, or root of the nose) indicates a high risk of ocular involvement due to the nasociliary nerve innervation.
*Acanthamoeba Keratitis*
- This is an **amoebic infection** of the cornea typically associated with **contact lens wear** and often presents with severe pain and a **ring infiltrate** in the cornea.
- It does not typically present with unilateral frontal blisters or significant lid edema.
*Herpes Simplex*
- Herpes simplex typically causes **recurrent corneal ulcers** (dendritic or geographic) and sometimes blepharitis, but not the widespread **unilateral frontal blisters** seen in the trigeminal distribution.
- While it can cause conjunctivitis and lid edema, the pattern of skin lesions is the key differentiator.
*Neuroparalytic Keratitis*
- This condition results from **trigeminal nerve damage**, leading to corneal anesthesia and subsequent **trophic corneal ulceration**.
- It presents primarily with **corneal findings** (epithelial defects, ulcers) due to impaired sensation and tear film stability, not initial vesicular skin lesions or prominent lid edema.
Conjunctivitis: Chronic Indian Medical PG Question 10: What does the following image show?
- A. Anterior uveitis
- B. Membranous conjunctivitis
- C. Pannus (Correct Answer)
- D. Pseudomembranous conjunctivitis
Conjunctivitis: Chronic Explanation: ***Pannus***
- The image distinctly shows **new blood vessels growing into the cornea** from the limbus, which is characteristic of pannus formation. This vascularization often accompanies chronic inflammation or hypoxia.
- This condition is a hallmark of certain ophthalmic diseases, such as **trachoma** or chronic irritation from prolonged **contact lens wear**.
*Anterior uveitis*
- Anterior uveitis presents with inflammation of the iris and ciliary body, typically causing **ciliary flush**, **miosis**, and cells/flare in the anterior chamber, which are not the primary features shown.
- While uveitis can sometimes lead to corneal changes, the prominent **vascularization extending onto the cornea** is not its defining visual characteristic.
*Membranous conjunctivitis*
- Membranous conjunctivitis is characterized by the formation of a **true membrane on the conjunctiva** that binds tightly to the underlying epithelium, often caused by severe bacterial infections like *Corynebacterium diphtheriae*.
- The image does not show a membrane on the conjunctival surface; instead, it highlights **corneal vascularization**.
*Pseudomembranous conjunctivitis*
- Pseudomembranous conjunctivitis involves a **fibrinous exudate loosely adherent** to the conjunctiva, which can be peeled off without significant bleeding, as seen in adenoviral conjunctivitis.
- The findings in the image, specifically **vascular ingrowth into the cornea**, are not consistent with the appearance of a pseudomembrane on the conjunctiva.
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