Scleritis: Anterior Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Scleritis: Anterior. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Scleritis: Anterior Indian Medical PG Question 1: Recurrent anterior uveitis with increased intraocular tension is seen in which of the following conditions?
- A. Posner-Schlossman syndrome (Correct Answer)
- B. Foster-Kennedy syndrome
- C. Vogt-Koyanagi-Harada syndrome
- D. Fuchs heterochromic iridocyclitis
Scleritis: Anterior Explanation: ***Posner-Schlossman syndrome***
- Characterized by **recurrent, unilateral, non-granulomatous anterior uveitis** associated with markedly **elevated intraocular pressure (IOP)**.
- The condition is also known as **glaucomatocyclitic crisis**, highlighting the episodic inflammation and glaucoma.
- Key features include **acute attacks** lasting hours to weeks with **dramatic IOP elevation** (often >40 mmHg).
*Foster-Kennedy syndrome*
- This syndrome is defined by ipsilateral **optic atrophy**, contralateral **papilledema**, and often **anosmia**, typically due to a frontal lobe tumor.
- It does not involve anterior uveitis or primary elevated intraocular tension.
- This is a neuro-ophthalmologic syndrome, not an inflammatory ocular condition.
*Vogt-Koyanagi-Harada syndrome*
- An autoimmune disorder affecting pigmented tissues, leading to **bilateral granulomatous panuveitis**, often with hearing loss, vitiligo, poliosis, and neurological symptoms.
- While it involves uveitis, it is typically **bilateral and panuveitis**, not recurrent unilateral anterior uveitis.
- IOP may be elevated but not the defining feature with dramatic episodic rises.
*Fuchs heterochromic iridocyclitis*
- A chronic, **unilateral, low-grade anterior uveitis** with characteristic iris heterochromia.
- May have mild IOP elevation but **not recurrent episodic attacks** with marked pressure spikes.
- Inflammation is typically **quiet and chronic** rather than acute and recurrent.
Scleritis: Anterior Indian Medical PG Question 2: In a patient with acute anterior uveitis presenting with raised intraocular pressure, the PRIMARY treatment should be:
- A. Topical steroids (Correct Answer)
- B. Topical beta-blockers
- C. Cycloplegics
- D. Miotics
Scleritis: Anterior Explanation: ***Topical steroids***
- **Topical corticosteroids** are the primary treatment for **anterior uveitis** to reduce inflammation, which is the underlying cause of both the uveitis and often the raised IOP.
- While IOP is elevated, managing the inflammation with steroids is crucial, as the inflammation itself can lead to secondary **IOP elevation** due to trabecular meshwork dysfunction or synechiae formation.
*Topical beta-blockers*
- **Topical beta-blockers** are used to lower intraocular pressure, but they do not address the underlying **inflammation** in acute anterior uveitis.
- Using them alone without treating the inflammation can lead to progression of the uveitis and further ocular damage.
*Cycloplegics*
- **Cycloplegics** (e.g., atropine, cyclopentolate) are important adjuncts in acute anterior uveitis to relieve pain from ciliary spasm and prevent posterior synechiae formation by dilating the pupil.
- They do not, however, treat the **inflammation** directly or primarily address the elevated intraocular pressure.
*Miotics*
- **Miotics** (e.g., pilocarpine) **constrict the pupil**, which can worsen symptoms in acute anterior uveitis by increasing ciliary body spasm and potentially increasing the risk of posterior synechiae formation.
- They are contraindicated in acute anterior uveitis as they exacerbate pain and inflammation, and do not treat the underlying cause.
Scleritis: Anterior Indian Medical PG Question 3: A 40-year-old woman with rheumatoid arthritis presents with eye pain and redness. Examination reveals scleritis. What is the most likely associated systemic complication?
- A. Interstitial lung disease (Correct Answer)
- B. Cardiomyopathy
- C. Renal failure
- D. Peripheral neuropathy
Scleritis: Anterior Explanation: ***Interstitial lung disease***
- **Scleritis** in a patient with **rheumatoid arthritis** often indicates a more severe, systemic form of the disease.
- **Interstitial lung disease (ILD)** is a common and serious **extra-articular manifestation** of rheumatoid arthritis, associated with higher disease activity and worse prognosis.
*Cardiomyopathy*
- While cardiac involvement can occur in RA (e.g., pericarditis, myocarditis), **cardiomyopathy** is less directly correlated with scleritis as a linked severe systemic complication.
- **Rheumatoid arthritis** can increase the risk of cardiovascular disease due to accelerated atherosclerosis and systemic inflammation, but cardiomyopathy itself is not typically the direct systemic complication associated with scleritis.
*Renal failure*
- **Renal involvement** in rheumatoid arthritis is uncommon, usually related to complications from treatment (e.g., NSAID-induced nephropathy) or secondary amyloidosis, not directly with scleritis.
- Scleritis itself does not directly predispose to **renal failure** as a primary systemic complication of RA.
*Peripheral neuropathy*
- **Peripheral neuropathy** can be a complication of rheumatoid arthritis, particularly in severe cases or vasculitis.
- However, it is not as strongly or directly linked to the presence of **scleritis** as **interstitial lung disease** is, in terms of signifying systemic disease severity.
Scleritis: Anterior Indian Medical PG Question 4: Most common type of scleritis is
- A. Diffuse anterior
- B. Nodular anterior
- C. Anterior (Correct Answer)
- D. Posterior
Scleritis: Anterior Explanation: ***Anterior***
- **Anterior scleritis** accounts for approximately **98%** of all scleritis cases, making it the most common type.
- It involves inflammation of the sclera anterior to the **equator of the globe**, visible on external examination.
- Anterior scleritis is further subdivided into **diffuse, nodular,** and **necrotizing** forms based on clinical presentation and severity.
*Diffuse anterior*
- **Diffuse anterior scleritis** is the most common subtype of anterior scleritis, characterized by widespread inflammation.
- While common among anterior types, it represents a subset rather than the overall most common anatomical category.
*Nodular anterior*
- **Nodular anterior scleritis** presents with discrete nodules of inflamed scleral tissue.
- It is less common than diffuse anterior scleritis but more common than necrotizing forms.
*Posterior*
- **Posterior scleritis** is rare, accounting for only about **2%** of all scleritis cases.
- It involves inflammation posterior to the **equator of the globe** and can be difficult to diagnose due to its hidden location, often presenting with pain, proptosis, and vision loss.
Scleritis: Anterior Indian Medical PG Question 5: A patient presents with a nodular swelling near the limbus, which does not blanch with topical vasoconstrictors and recurs after treatment. Based on the image and clinical presentation, what is the most probable diagnosis?
- A. Scleritis with rheumatoid arthritis (Correct Answer)
- B. Episcleritis with rheumatoid arthritis
- C. Pinguecula
- D. Dry eye
Scleritis: Anterior Explanation: ***Scleritis with rheumatoid arthritis***
- The image shows **deep, violaceous conjunctival injection** with surrounding edema and a nodular appearance near the limbus, consistent with **nodular scleritis**. Scleritis is inflammation of the sclera, often characterized by severe pain and association with systemic autoimmune diseases like **rheumatoid arthritis**, which can cause destructive lesions and recurrence.
- The characteristic **deep vessel engorgement that does not blanch with phenylephrine** and the history of recurrence further support scleritis.
*Episcleritis with rheumatoid arthritis*
- Episcleritis presents with a **more superficial, bright red injection** involving the episclera, which generally **blanches with topical phenylephrine** and is less painful than scleritis.
- While episcleritis can be associated with rheumatoid arthritis, the clinical features described (nodular swelling, deep injection) are more typical of scleritis.
*Pinguecula*
- A pinguecula is a **yellowish patch or bump** on the conjunctiva, typically on the nasal side of the eye, that is **not inflamed** unless irritated.
- It consists of **degenerated collagen fibers** and elastic tissue, and does not present with the diffuse, deep vascular injection seen in the image.
*Dry eye*
- Dry eye is characterized by **ocular dryness, irritation, and sometimes a foreign body sensation**, but it typically causes **diffuse conjunctival hyperemia** rather than a localized, nodular, deep inflammation with surrounding edema as shown.
- While dry eye can be associated with autoimmune diseases, its appearance is not consistent with the depicted nodular lesion.
Scleritis: Anterior Indian Medical PG Question 6: Ciliary staphyloma occurs due to all of the following except:
- A. Scleritis
- B. Absolute glaucoma
- C. Episcleritis (Correct Answer)
- D. Perforating injury
Scleritis: Anterior Explanation: ***Episcleritis***
- **Episcleritis** is a benign, self-limiting inflammation of the episclera, which is a superficial layer of connective tissue, and does not lead to **scleral thinning** or ectasia.
- Therefore, it does not cause **ciliary staphyloma**, which is a bulging of the sclera in the ciliary body region.
*Scleritis*
- **Scleritis** is a severe, chronic inflammatory disease affecting the sclera, often leading to **scleral thinning** and weakening.
- This thinning can predispose to the formation of a **ciliary staphyloma**, especially if the inflammation is localized in the ciliary region.
*Absolute glaucoma*
- **Absolute glaucoma** is a severe form of glaucoma characterized by persistently high **intraocular pressure (IOP)**, leading to total vision loss and often significant **scleral thinning** due to chronic pressure.
- The elevated IOP can cause stretching and thinning of the sclera, particularly in weakened areas like the **ciliary body**, resulting in a **ciliary staphyloma**.
*Perforating injury*
- A **perforating injury** to the globe can directly weaken the **scleral wall**, especially if it occurs near the **ciliary body**.
- Subsequent healing with scar tissue, often under intraocular pressure, can lead to ectasia and the formation of a **ciliary staphyloma**.
Scleritis: Anterior Indian Medical PG Question 7: Massaging of nasolacrimal duct is done in ?
- A. Acute dacryocystitis
- B. Congenital dacryocystitis (Correct Answer)
- C. Conjunctivitis
- D. None of the options
Scleritis: Anterior Explanation: ***Congenital dacryocystitis***
- **Massaging the nasolacrimal duct** (Crigler massage) is a primary treatment for congenital dacryocystitis to promote the opening of the **valve of Hasner**.
- This condition is due to incomplete canalization of the nasolacrimal duct, leading to tearing and discharge in infants.
*Acute dacryocystitis*
- This is an **acute infection of the lacrimal sac**, and massaging can worsen the condition by spreading the infection.
- Treatment typically involves **antibiotics** and, if necessary, incision and drainage of any abscess.
*Conjunctivitis*
- **Conjunctivitis** is inflammation of the conjunctiva and is not related to obstruction of the nasolacrimal duct.
- Massaging the nasolacrimal duct has no therapeutic role in treating conjunctivitis.
*None of the options*
- This option is incorrect because **congenital dacryocystitis** is a condition where nasolacrimal duct massage is a standard and effective treatment.
Scleritis: Anterior Indian Medical PG Question 8: Ciliary staphyloma is seen in which of the following conditions?
- A. Absolute glaucoma (Correct Answer)
- B. Pathological myopia
- C. Retinoblastoma
- D. Episcleritis
Scleritis: Anterior Explanation: **Explanation:**
**Ciliary staphyloma** is a localized thinning and bulging of the sclera lined by the underlying ciliary body. It occurs due to a combination of weakened scleral integrity and chronically elevated intraocular pressure (IOP).
1. **Why Absolute Glaucoma is correct:** In absolute glaucoma, the IOP is severely and chronically elevated. This persistent pressure causes the sclera to stretch and thin, particularly in the **ciliary zone** (the area 2–8 mm behind the limbus). As the sclera thins, the dark pigment of the underlying ciliary body shines through, giving it a characteristic bluish-black appearance.
2. **Why the other options are incorrect:**
* **Pathological Myopia:** This is typically associated with **Posterior staphyloma**, where the thinning occurs at the posterior pole (macular area) due to excessive axial elongation.
* **Retinoblastoma:** While advanced tumors can cause globe enlargement (buphthalmos) or extraocular extension, they do not typically present as a focal ciliary staphyloma.
* **Episcleritis:** This is a self-limiting, superficial inflammation of the episcleral tissues that does not lead to scleral thinning or staphyloma formation.
**Clinical Pearls for NEET-PG:**
* **Types of Staphyloma:**
* **Anterior (Intercalary):** At the limbus; seen in secondary glaucoma following corneal perforation.
* **Ciliary:** 2–8 mm from limbus; seen in Absolute Glaucoma and Scleritis.
* **Equatorial:** At the exit of vortex veins; seen in Pathological Myopia.
* **Posterior:** At the posterior pole; hallmark of Pathological Myopia.
* **Key Sign:** The "bluish" color of a staphyloma is not due to the sclera itself, but the **uveal tissue** visible through the thinned sclera.
Scleritis: Anterior Indian Medical PG Question 9: Posterior staphyloma is associated with which of the following conditions?
- A. Pathological myopia (Correct Answer)
- B. Uveoscleritis
- C. Pseudocornea
- D. Angle closure glaucoma
Scleritis: Anterior Explanation: **Explanation:**
**Posterior staphyloma** is defined as a localized bulging of the weak, thinned sclera lined by uveal tissue, occurring posterior to the equator of the eyeball.
**1. Why Pathological Myopia is correct:**
In **Pathological (High) Myopia**, there is progressive axial elongation of the eyeball. This leads to mechanical stretching and thinning of the posterior pole of the sclera. As the sclera weakens, it bulges outward, creating a staphyloma. This is a hallmark feature of pathological myopia and is often associated with "lacquer cracks," chorioretinal atrophy, and Foster-Fuchs spots.
**2. Why the other options are incorrect:**
* **Uveoscleritis:** While inflammation can weaken the sclera, it typically leads to generalized thinning or anterior/ciliary staphylomas rather than the classic posterior staphyloma.
* **Pseudocornea:** This refers to a layer of organized exudates and fibrous tissue covering a perforated cornea. It is a feature of anterior segment pathology, not posterior scleral ectasia.
* **Angle-closure glaucoma:** Chronic high intraocular pressure in children (Buphthalmos) can lead to generalized enlargement of the globe, but in adults, glaucoma does not typically cause posterior staphyloma.
**Clinical Pearls for NEET-PG:**
* **Types of Staphyloma:**
* **Anterior:** At the limbus (due to perforated corneal ulcer).
* **Ciliary:** Over the ciliary body (2–3 mm behind the limbus).
* **Equatorial:** At the equator (where vortex veins exit).
* **Posterior:** At the posterior pole (Pathognomonic for Pathological Myopia).
* **Diagnosis:** Posterior staphyloma is best visualized using **B-scan Ultrasonography** or MRI.
* **Key association:** It is the most common cause of a "long" axial length on biometry.
Scleritis: Anterior Indian Medical PG Question 10: Sclera is thinnest at:
- A. Posterior pole
- B. Equator
- C. Corneoscleral junction
- D. Points of muscular attachments (Correct Answer)
Scleritis: Anterior Explanation: The sclera is the dense, fibrous outer protective coat of the eye. Its thickness varies significantly across different anatomical zones, which is a high-yield concept for surgical and clinical ophthalmology.
### **Explanation of the Correct Answer**
**D. Points of muscular attachments:** The sclera is thinnest at the insertion points of the **extraocular muscles (EOMs)**, specifically just posterior to their tendons. At these sites, the scleral thickness is approximately **0.3 mm**. This anatomical vulnerability is clinically significant during strabismus surgery, as there is a higher risk of scleral perforation during muscle recession or resection.
### **Analysis of Incorrect Options**
* **A. Posterior pole:** This is the **thickest** part of the sclera, measuring approximately **1.0 mm to 1.3 mm**. The thickness here provides structural support near the optic nerve head.
* **B. Equator:** At the equator, the sclera has an intermediate thickness of about **0.4 mm to 0.6 mm**.
* **C. Corneoscleral junction (Limbus):** The sclera is relatively thick here, measuring approximately **0.8 mm**.
### **NEET-PG High-Yield Pearls**
* **Thickness Gradient:** Posterior pole (1.0 mm) → Limbus (0.8 mm) → Equator (0.5 mm) → Muscle Insertions (0.3 mm).
* **Composition:** The sclera is primarily composed of Type I collagen. It is relatively avascular, receiving its nutrition from the episclera and underlying choroid.
* **Lamina Cribrosa:** This is a sieve-like portion of the sclera at the optic nerve head; it is the weakest point of the outer coat against intraocular pressure (relevant in glaucoma).
* **Scleral Blue Discoloration:** Seen in conditions where the sclera thins (e.g., high myopia, scleromalacia perforans) or in systemic diseases like Osteogenesis Imperfecta (due to Type I collagen defect).
More Scleritis: Anterior Indian Medical PG questions available in the OnCourse app. Practice MCQs, flashcards, and get detailed explanations.
