Ocular Manifestations of Systemic Disorders Practice Questions

Q: All the following are true regarding acute anterior uveitis in ankylosing spondylitis EXCEPT?

More common in females. **Explanation:** **Ankylosing Spondylitis (AS)** is a chronic inflammatory seronegative spondyloarthropathy strongly associated with the **HLA-B27** antigen. Acute Anterior Uveitis (AAU) is the most common extra-articular manifestation, occurring in approximately 25-40% of patients. **1. Why Option A is the Correct Answer (The False Statement):** Ankylosing spondylitis is significantly **more common in males** (ratio approx. 3:1). Consequently, the associated acute anterior uveitis also shows a strong male predilection. Therefore, the statement "More common in females" is incorrect. **2. Analysis of Other Options:** * **Option B (Recurrent attacks):** AAU in AS is typically **unilateral, acute, and recurrent**. While it affects one eye at a time, it frequently alternates between the two eyes over several years. * **Option C (Fibrous reaction):** The inflammation in AS is often "plastic" or exudative. Intense flare and cells in the anterior chamber can lead to a heavy **fibrinous exudate**, which increases the risk of forming posterior synechiae. * **Option D (Joint changes):** Sacroiliitis is the hallmark of AS. Radiographic findings include **narrowing of joint spaces**, subchondral sclerosis, and eventual bony ankylosis ("Bamboo spine"). **Clinical Pearls for NEET-PG:** * **HLA-B27 Association:** Found in >90% of AS patients. * **Presentation:** Sudden onset of pain, redness, photophobia, and "ciliary flush." * **Management:** Topical corticosteroids and cycloplegics (to prevent synechiae). Systemic NSAIDs or TNF-alpha inhibitors may be needed for the underlying joint disease. * **Mnemonic:** Remember the **"Seronegative"** group (PAIR: Psoriatic arthritis, Ankylosing spondylitis, Inflammatory bowel disease, Reactive arthritis)—all are HLA-B27 positive and cause similar uveitis.

Q: Which of the following are ocular manifestations seen in patients with AIDS?

All of the above. **Explanation:** Ocular manifestations occur in approximately **70-80% of HIV-infected patients**, primarily due to severe immunosuppression (typically when CD4 counts drop below 200 cells/µL). **Why "All of the above" is correct:** HIV/AIDS affects the eye through opportunistic infections, vascular changes, and neoplasms. * **Kaposi Sarcoma (Option A):** This is the most common vascular neoplasm in AIDS, caused by Human Herpesvirus 8 (HHV-8). It typically presents as a painless, reddish-purple mass on the conjunctiva or eyelids. * **Retinitis (Option B):** CMV (Cytomegalovirus) retinitis is the most common vision-threatening opportunistic infection in AIDS (CD4 < 50). It presents with the classic "Pizza-pie" or "Crumbled cheese and ketchup" appearance on fundoscopy. * **Lymphoma (Option C):** Non-Hodgkin Lymphoma (NHL), particularly B-cell lymphomas, can manifest in the orbit or as intraocular lymphoma in advanced AIDS cases. **Clinical Pearls for NEET-PG:** 1. **HIV Microangiopathy:** The most common overall ocular finding, characterized by **Cotton Wool Spots** (CWS) without hemorrhage. Unlike diabetic retinopathy, these CWS are transient. 2. **CMV Retinitis:** The leading cause of blindness in AIDS patients. Treatment of choice is **Ganciclovir** (Intravitreal/Systemic) or Valganciclovir. 3. **ARN vs. PORN:** Acute Retinal Necrosis (ARN) occurs in immunocompetent/mildly suppressed patients, while **Progressive Outer Retinal Necrosis (PORN)** is a rapidly progressing necrotizing retinitis seen specifically in severe AIDS (caused by Varicella Zoster). 4. **Dry Eye (Keratoconjunctivitis Sicca):** A very common non-infectious manifestation.

Q: What is the most common ocular feature in Reiter Syndrome?

Conjunctivitis. **Explanation:** **Reiter Syndrome** (now more commonly referred to as **Reactive Arthritis**) is a classic seronegative spondyloarthropathy characterized by the clinical triad: **"Can't see, can't pee, can't climb a tree"** (Conjunctivitis, Urethritis, and Arthritis). 1. **Why Conjunctivitis is correct:** **Conjunctivitis** is the **most common** ocular manifestation of Reiter Syndrome, occurring in approximately 30–60% of patients. It is typically bilateral, mucopurulent, and often occurs shortly after the onset of urethritis. It is usually self-limiting and does not require aggressive steroid therapy. 2. **Analysis of Incorrect Options:** * **Anterior Uveitis (A):** This is the **second most common** ocular feature (seen in about 10–20% of cases). While it is more clinically significant and potentially sight-threatening due to its association with HLA-B27, it occurs less frequently than conjunctivitis. * **Pars planitis (B):** This is a form of intermediate uveitis. While systemic inflammatory conditions can cause various forms of uveitis, pars planitis is not a characteristic or common feature of Reiter Syndrome. * **Chorioretinitis (D):** This involves the posterior segment (choroid and retina). Reiter Syndrome primarily affects the anterior segment; posterior segment involvement is extremely rare. **High-Yield Clinical Pearls for NEET-PG:** * **HLA Association:** Strongly associated with **HLA-B27** (up to 80% of cases). * **Triggering Infections:** Often follows urogenital (Chlamydia) or gastrointestinal (Shigella, Salmonella, Campylobacter) infections. * **Keratoderma Blennorrhagica:** A pathognomonic skin lesion (vesicular/pustular) found on the palms and soles. * **Circinate Balanitis:** Painless dermatitis of the glans penis. * **Management:** Conjunctivitis is usually managed with lubricants; Uveitis requires topical steroids and cycloplegics.

Q: In mumps, what is the most common eye lesion?

Dacryoadenitis. **Explanation:** **Mumps** is a viral infection caused by the **Paramyxovirus**, primarily known for causing painful swelling of the parotid glands. However, it is a systemic disease that can affect various glandular tissues and the ocular system. **1. Why Dacryoadenitis is the correct answer:** **Dacryoadenitis** (inflammation of the lacrimal gland) is the **most common** ocular complication of mumps. This occurs because the Paramyxovirus has a high affinity for glandular epithelium. Since the lacrimal gland is structurally and functionally similar to the salivary glands, it is frequently involved. It typically presents as sudden onset of pain, swelling, and redness in the temporal aspect of the upper eyelid, often occurring bilaterally. **2. Analysis of Incorrect Options:** * **B. Uveitis:** While mumps can cause a transient, non-granulomatous anterior uveitis (usually during the recovery phase), it is significantly less common than dacryoadenitis. * **C. Membranous conjunctivitis:** Mumps usually causes a mild follicular conjunctivitis. Membranous conjunctivitis is more classically associated with *Corynebacterium diphtheriae* or Adenovirus (EKC). * **D. Chorioretinitis:** This is a rare posterior segment complication of mumps. It is much more frequently associated with infections like Toxoplasmosis, CMV, or Syphilis. **3. NEET-PG High-Yield Pearls:** * **Most common systemic complication in children:** Aseptic meningitis. * **Most common systemic complication in post-pubertal males:** Orchitis (usually unilateral; rarely leads to sterility). * **Most common cause of sudden onset sensorineural hearing loss (SNHL) in children:** Mumps (typically unilateral and permanent). * **Ocular triad:** Though rare, mumps can present with the triad of dacryoadenitis, keratitis, and optic neuritis.

Q: Which ocular symptom is NOT seen in Herpes zoster ophthalmicus?

Cranial nerve palsies. **Explanation:** **Herpes Zoster Ophthalmicus (HZO)** is caused by the reactivation of the Varicella-Zoster Virus (VZV) in the trigeminal ganglion, specifically involving the ophthalmic division ($V_1$). **Why "Cranial nerve palsies" is the correct answer:** While HZO primarily affects the sensory distribution of the trigeminal nerve, cranial nerve palsies (III, IV, and VI) are considered **extraocular complications** rather than "ocular symptoms" or direct manifestations of the ophthalmic infection itself. In the context of standard NEET-PG questions, the ocular involvement focuses on the globe and its immediate structures. While motor palsies can occur due to contiguous inflammation (orbital apex syndrome), they are neurological complications rather than primary ocular symptoms. **Analysis of Incorrect Options:** * **Nummular Keratitis:** This is a classic late manifestation of HZO characterized by multiple granular, "coin-shaped" subepithelial opacities. * **Glaucoma:** Secondary glaucoma is common in HZO, usually resulting from trabeculitis (inflammation of the drainage angle) or as a complication of chronic uveitis. * **Uveitis:** HZO frequently causes a severe, hypertensive anterior uveitis often associated with sectorial iris atrophy due to vasculitis. **High-Yield Clinical Pearls for NEET-PG:** * **Hutchinson’s Sign:** Vesicles on the tip or side of the nose (involvement of the nasociliary nerve) strongly predict ocular involvement. * **Pseudodendrites:** Unlike the true dendrites of Herpes Simplex (which have terminal bulbs and central ulceration), HZO produces "pseudodendrites" which are elevated, lack central ulceration, and do not stain well with fluorescein. * **Treatment:** Oral Acyclovir (800 mg 5 times daily for 7–10 days) is the gold standard; it must be started within 72 hours of rash onset to be most effective.

Q: When a patient is asked to look down, the upper eyelid fails to follow the rotation of the eyeball and lags behind. This eye sign is known as:

Von Graefe's sign. **Explanation:** The clinical sign described is **Von Graefe’s sign**, which is the most specific physical finding in **Thyroid Eye Disease (TED)** or Graves' Ophthalmopathy. It occurs due to the overactivation of the sympathetic nervous system and the contraction of the levator palpebrae superioris (LPS) and Müller’s muscle. When the patient looks down, the upper eyelid remains abnormally high, exposing the superior sclera. **Analysis of Options:** * **Von Graefe’s sign (Correct):** Defined as **lid lag** on downgaze. It is caused by the failure of the LPS muscle to relax as the eye moves inferiorly. * **Joffroy’s sign:** Refers to the **absence of forehead wrinkling** when the patient looks upward. This occurs because the frontalis muscle is unable to compensate for the restricted upward gaze. * **Moebius sign:** Refers to the **inability to maintain convergence** of the eyeballs, leading to diplopia during near-work. * **Stellwag’s sign:** Characterized by **infrequent or incomplete blinking**, which contributes to the "staring look" often seen in thyrotoxicosis. **High-Yield Clinical Pearls for NEET-PG:** * **Dalrymple sign:** Widening of the palpebral fissure (staring look) in the primary position. * **Enroth sign:** Edema of the eyelids (especially the upper lid). * **Pathogenesis:** TED is primarily caused by the activation of orbital fibroblasts by TSH-receptor antibodies, leading to glycosaminoglycan (GAG) deposition and extraocular muscle enlargement. * **Sequence of Muscle Involvement (IMSLO):** Inferior Rectus > Medial Rectus > Superior Rectus > Lateral Rectus > Obliques.

Q: Which of the following indicates activity of anterior uveitis?

Cells in anterior chamber. **Explanation:** In Ophthalmology, distinguishing between **activity** (active inflammation) and **sequelae** (signs of past inflammation) is crucial for management. **Why "Cells in anterior chamber" is correct:** The presence of **aqueous cells** is the most reliable and sensitive indicator of **active** anterior uveitis. These are inflammatory cells (leukocytes) floating in the aqueous humor due to the breakdown of the blood-aqueous barrier. According to the **SUN (Standardization of Uveitis Nomenclature) criteria**, the grading of uveitis activity is primarily based on the number of cells seen in a 1x1 mm slit-lamp beam. **Analysis of Incorrect Options:** * **Circumcorneal congestion (Ciliary flush):** While a sign of acute inflammation, it is non-specific and can be seen in acute glaucoma or keratitis. It indicates the *presence* of a problem but is not the standardized measure of *activity* or severity of the uveitis itself. * **Keratic precipitates (KPs):** These are inflammatory deposits on the corneal endothelium. While they indicate uveitis has occurred, "old" KPs (shrunken, pigmented, or "mutton-fat" appearing) can persist long after the active inflammation has subsided. * **Corneal edema:** This is a complication resulting from endothelial dysfunction or secondary glaucoma (high IOP) associated with uveitis, rather than a direct measure of the inflammatory activity. **High-Yield Clinical Pearls for NEET-PG:** * **Aqueous Flare:** Indicates protein leakage due to blood-aqueous barrier breakdown; it signifies chronicity rather than acute activity. * **Mutton-fat KPs:** Characteristic of **Granulomatous uveitis** (e.g., Sarcoidosis, TB). * **Hypopyon:** A sterile collection of inflammatory cells settling inferiorly in the AC; commonly seen in **HLA-B27** associated uveitis and **Behçet’s disease**. * **Gold Standard for Activity:** Slit-lamp biomicroscopy to count cells.

Q: What is the ocular manifestation of ankylosing spondylitis?

Anterior uveitis. **Explanation:** **Ankylosing Spondylitis (AS)** is a chronic inflammatory seronegative spondyloarthropathy strongly associated with the **HLA-B27** allele. The most common extra-articular manifestation of AS is **Acute Anterior Uveitis (AAU)**, occurring in approximately 25–40% of patients. **Why Anterior Uveitis is correct:** The underlying mechanism involves an autoimmune-mediated inflammation of the uveal tract (specifically the iris and ciliary body). In AS, the uveitis is characteristically **acute, unilateral (though it can alternate eyes), and recurrent.** Patients typically present with sudden onset of pain, redness (ciliary congestion), photophobia, and blurred vision. On examination, "mutton-fat" keratic precipitates are usually absent; instead, fine KPs and a significant cellular reaction in the anterior chamber are seen. **Why other options are incorrect:** * **A. Cataract:** While cataracts (specifically complicated cataracts) can occur as a *secondary complication* of chronic uveitis or prolonged steroid use, they are not the primary manifestation of AS. * **B. Retinal detachment:** This is not typically associated with AS. Retinal issues are more common in high myopia or trauma. * **C. Glaucoma:** Similar to cataracts, secondary glaucoma can occur due to synechiae formation or steroid therapy, but it is a complication rather than the hallmark manifestation. **High-Yield Clinical Pearls for NEET-PG:** * **Mnemonic:** HLA-B27 is associated with **PAIR** (Psoriatic arthritis, Ankylosing spondylitis, Inflammatory bowel disease, and Reactive arthritis)—all of which can cause anterior uveitis. * **Treatment:** The mainstay of treatment for AS-associated uveitis is **topical corticosteroids** and **cycloplegics** (to prevent posterior synechiae). * **Key Sign:** Look for "bamboo spine" in the clinical vignette to point towards AS.

Q: Koeppe nodules are located at which anatomical structure?

Pupillary border of the Iris. **Explanation:** Koeppe nodules are a hallmark clinical sign of **granulomatous uveitis** (e.g., Sarcoidosis, Tuberculosis, Leprosy). These are small, translucent, or white-to-grey cellular aggregates composed of epithelioid cells and lymphocytes. * **Why Option B is correct:** Koeppe nodules are specifically located at the **pupillary margin** (border) of the iris. They are often the site where posterior synechiae (adhesions between the iris and lens) begin to form. * **Why Option A is incorrect:** Nodules located at the **base (periphery) of the iris** or within the iris stroma are known as **Busacca nodules**. These are less common than Koeppe nodules and are also indicative of granulomatous inflammation. * **Why Options C & D are incorrect:** The Pars plana and Pars plicata are components of the **ciliary body**. While these structures are involved in intermediate uveitis (e.g., "snowbanking" in pars planitis), they do not harbor Koeppe nodules, which are strictly iris manifestations. **High-Yield Clinical Pearls for NEET-PG:** 1. **Koeppe vs. Busacca:** Remember **K**oeppe = **K**orner (Pupillary margin); **B**usacca = **B**ody (Iris stroma/periphery). 2. **Granulomatous Uveitis Triad:** Large "Mutton-fat" Keratic Precipitates (KPs), Koeppe/Busacca nodules, and Iris pearls (specific to Leprosy). 3. **Berlin’s Nodules:** These are similar nodules found in the angle of the anterior chamber, visible only on gonioscopy. 4. **Lisch Nodules:** Do not confuse these with inflammatory nodules; Lisch nodules are melanocytic hamartomas found in **Neurofibromatosis Type 1**.

Question 1

All the following are true regarding acute anterior uveitis in ankylosing spondylitis EXCEPT?

Accepted Answer

More common in females

Answer

Recurrent attacks occur

Answer

Fibrous reaction in anterior chambers

Answer

Narrowing of joint spaces and sclerosis of the sacroiliac joints

Question 2

Which of the following are ocular manifestations seen in patients with AIDS?

Accepted Answer

All of the above

Answer

Kaposi sarcoma

Answer

Retinitis

Answer

Lymphoma

Question 3

What is the most common ocular feature in Reiter Syndrome?

Accepted Answer

Conjunctivitis

Answer

Anterior Uveitis

Answer

Pars planitis

Answer

Chorioretinitis

Question 4

In mumps, what is the most common eye lesion?

Accepted Answer

Dacryoadenitis

Answer

Uveitis

Answer

Membranous conjunctivitis

Answer

Chorioretinitis

Question 5

Which ocular symptom is NOT seen in Herpes zoster ophthalmicus?

Accepted Answer

Cranial nerve palsies

Answer

Nummular keratitis

Answer

Glaucoma

Answer

Uveitis

Question 6

When a patient is asked to look down, the upper eyelid fails to follow the rotation of the eyeball and lags behind. This eye sign is known as:

Accepted Answer

Von Graefe's sign

Answer

Joffroy's sign

Answer

Moebius sign

Answer

Stellwag's sign

Question 7

Snow banking is not a feature of which of the following conditions?

Accepted Answer

Chronic congestive glaucoma

Answer

Candidiasis

Answer

Multiple sclerosis

Answer

Sarcoidosis

Question 8

Which of the following indicates activity of anterior uveitis?

Accepted Answer

Cells in anterior chamber

Answer

Circumcorneal congestion

Answer

Keratic precipitate

Answer

Corneal edema

Question 9

What is the ocular manifestation of ankylosing spondylitis?

Accepted Answer

Anterior uveitis

Answer

Cataract

Answer

Retinal detachment

Answer

Glaucoma

Question 10

Koeppe nodules are located at which anatomical structure?

Accepted Answer

Pupillary border of the Iris

Answer

Base of the Iris

Answer

Pars plana

Answer

Pars plicata

Ocular Manifestations of Systemic Disorders — MCQs

Ocular Manifestations of Systemic Disorders — MCQs

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