Ocular Manifestations of Systemic Disorders Practice Questions

Q: A 2-year-old unimmunized child from a hilly tribal area developed Keratomalacia after a viral infection. Which of the following viral infections could have led to the development of Keratomalacia?

Rubeola. **Explanation:** **Correct Answer: B. Rubeola (Measles)** The correct answer is **Rubeola**, commonly known as Measles. In developing countries and underserved areas, Measles is a leading cause of childhood blindness. The underlying medical concept involves a "triple threat" to the cornea: 1. **Vitamin A Depletion:** The measles virus causes a massive systemic inflammatory response that rapidly depletes the body’s Vitamin A stores. 2. **Epithelial Damage:** The virus directly infects the conjunctival and corneal epithelium, causing keratitis. 3. **Secondary Infection:** Measles induces transient immunosuppression, predisposing the child to secondary bacterial or fungal corneal ulcers, which rapidly progress to **Keratomalacia** (liquefactive necrosis of the cornea). **Analysis of Incorrect Options:** * **A. Rubella:** Primarily associated with "Congenital Rubella Syndrome," presenting with cataracts, glaucoma, and "salt and pepper" retinopathy, rather than acute keratomalacia. * **C. Mumps:** Ocular involvement is rare but typically manifests as dacryoadenitis (inflammation of the lacrimal gland) or optic neuritis. * **D. Varicella:** Can cause dendritic keratitis or uveitis, but it does not typically lead to the rapid corneal melting seen in Vitamin A-deficient children post-measles. **High-Yield Clinical Pearls for NEET-PG:** * **WHO Protocol:** All children diagnosed with Measles in endemic areas should receive two doses of **Vitamin A** (200,000 IU for >1 year; 100,000 IU for 6–12 months) to prevent blindness and reduce mortality. * **Bitot’s Spots:** Triangular, foamy patches on the bulbar conjunctiva; a hallmark of Vitamin A deficiency. * **Xerophthalmia Classification:** Keratomalacia involving >1/3 of the cornea is classified as **X3B**.

Q: Which condition presents with uveitis, auditory problems, and cutaneous issues?

Vogt-Koyanagi-Harada syndrome. **Explanation:** **Vogt-Koyanagi-Harada (VKH) Syndrome** is a multisystem autoimmune disorder characterized by T-cell mediated destruction of melanocytes. Since melanocytes are found in the eye (uvea), inner ear, skin, and meninges, the clinical presentation is classic: * **Ocular:** Bilateral granulomatous panuveitis, often with exudative retinal detachment. * **Auditory:** Dysacusis, tinnitus, and vertigo. * **Cutaneous:** Poliosis (whitening of hair/eyelashes), vitiligo, and alopecia. * **Neurological:** Meningismus (headache, neck stiffness) and CSF pleocytosis. **Analysis of Incorrect Options:** * **Behcet’s Disease:** Presents with a triad of oral ulcers, genital ulcers, and uveitis (classically with a shifting hypopyon). It lacks auditory and cutaneous depigmentation features. * **Ankylosing Spondylitis:** Associated with HLA-B27. It typically presents with acute, unilateral, non-granulomatous anterior uveitis and sacroiliitis, but no auditory or skin involvement. * **Marfan’s Syndrome:** A connective tissue disorder (FBN1 mutation) presenting with ectopia lentis (superotemporal subluxation) and skeletal/cardiac issues, not uveitis or auditory loss. **High-Yield Clinical Pearls for NEET-PG:** * **VKH Phases:** Prodromal (flu-like/meningeal) → Uveitic (exudative RD) → Convalescent (Sugiura sign/Sunset glow fundus) → Chronic recurrent. * **Sugiura Sign:** Perilimbal vitiligo (depigmentation at the limbus), highly specific for VKH. * **Sunset Glow Fundus:** An orange-red discoloration of the fundus due to chronic depigmentation of the RPE. * **Epidemiology:** More common in pigmented races (Asians, Hispanics, Native Americans).

Q: What is the most common intraocular tumor in adults?

Metastasis. **Explanation:** The most common intraocular tumor in adults is **Metastasis (Option A)**. While many clinicians associate intraocular malignancy primarily with uveal melanoma, autopsy studies and clinical data confirm that secondary metastatic deposits are far more frequent. These tumors typically reach the eye via hematogenous spread, most commonly seeding the **choroid** due to its high vascularity. In males, the primary source is usually lung cancer, while in females, it is breast cancer. **Analysis of Incorrect Options:** * **Retinoblastoma (Option B):** This is the most common primary intraocular malignancy in **children**, typically presenting before age 3. It is rare in adults. * **Malignant Melanoma (Option C):** This is the most common **primary** intraocular malignancy in adults. However, when the question asks for the "most common" overall (including secondary tumors), metastasis outranks it. * **Vitreous Tumor (Option D):** Primary tumors of the vitreous are extremely rare. Most vitreous involvements are secondary to primary intraocular lymphoma (PIOL) or spillover from retinal/choroidal tumors. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site for metastasis:** Choroid (90%), followed by the iris and ciliary body. * **Most common primary source:** Breast (most common overall) and Lung. * **Clinical presentation:** Often presents as a creamy-yellow, placoid (flat) subretinal mass, frequently associated with exudative retinal detachment. * **Diagnostic Tip:** If a patient presents with bilateral or multifocal intraocular masses, always suspect metastasis over primary melanoma.

Q: A 10-year-old child presents with Fanconi's syndrome. Which of the following ocular findings is most characteristic?

Kayser-Fleischer ring. **Explanation:** The correct answer is **C. Kayser-Fleischer ring.** **Medical Concept:** Fanconi’s syndrome is a disorder of the kidney's proximal renal tubules, often occurring as a secondary complication of **Wilson’s disease** (Hepatolenticular degeneration). Wilson’s disease is characterized by a deficiency in ceruloplasmin, leading to systemic copper deposition. The **Kayser-Fleischer (KF) ring** is a golden-brown or greenish deposit of copper in the **Descemet’s membrane** of the peripheral cornea. It is the hallmark ocular sign of Wilson’s disease and is present in nearly all patients with neurological involvement and most with renal manifestations like Fanconi's syndrome. **Analysis of Incorrect Options:** * **A. Vogt’s striae:** These are vertical stress lines seen in the deep stroma/Descemet’s membrane in patients with **Keratoconus**. * **B. Fleischer ring:** This is an iron deposit (hemosiderin) at the base of the cone in **Keratoconus**. (Note: Do not confuse *Fleischer* ring with *Kayser-Fleischer* ring). * **D. Stocker line:** This is a vertical iron line seen on the corneal epithelium at the leading edge of a **Pterygium**. **High-Yield Clinical Pearls for NEET-PG:** * **KF Ring Location:** Starts at the 12 o'clock and 6 o'clock positions (superior and inferior limbus) before becoming circumferential. * **Sunflower Cataract:** Another ocular finding in Wilson’s disease (copper deposition in the anterior lens capsule). * **Hudson-Stahli line:** Iron deposition in the corneal epithelium associated with normal aging. * **Ferry’s line:** Iron deposit at the edge of a filtering bleb (glaucoma surgery).

Q: Systemic corticosteroids in herpes zoster ophthalmicus are indicated when associated with which of the following conditions?

Optic neuritis. **Explanation:** In **Herpes Zoster Ophthalmicus (HZO)**, the use of systemic corticosteroids is a nuanced clinical decision. While oral acyclovir is the mainstay of treatment, systemic steroids are reserved for specific inflammatory complications where the benefit of reducing immune-mediated damage outweighs the risk of viral reactivation. **Why Optic Neuritis is the Correct Answer:** Optic neuritis in HZO is an inflammatory, often occlusive, complication that can lead to permanent vision loss. Systemic corticosteroids (often starting with IV methylprednisolone) are indicated to reduce the inflammatory edema and prevent irreversible damage to the optic nerve fibers. This is a high-priority indication to salvage vision. **Analysis of Incorrect Options:** * **Facial Nerve Palsy (Option A):** While steroids are the standard of care for *Bell’s Palsy*, their role in HZO-associated cranial nerve palsies (like the 3rd, 4th, or 6th nerves) is controversial. Most cases are self-limiting and managed with antiviral therapy alone. * **Post-herpetic Neuralgia (PHN) (Option C):** Clinical trials have shown that while systemic steroids may reduce the *duration* of acute pain during the eruptive phase, they do **not** prevent the incidence or severity of chronic Post-herpetic Neuralgia. PHN is primarily managed with gabapentin, pregabalin, or tricyclic antidepressants. **High-Yield Clinical Pearls for NEET-PG:** * **Hutchinson’s Sign:** Vesicles on the tip of the nose indicate involvement of the nasociliary nerve, predicting a higher risk (76%) of ocular involvement. * **Topical Steroids:** Indicated for HZO-associated keratitis (nummular or disciform) and uveitis, but only under strict antiviral cover. * **Dose:** Systemic steroids are generally avoided in the presence of active viral replication unless a sight-threatening or life-threatening inflammatory complication (like orbital apex syndrome or encephalitis) is present.

Q: Red keratin precipitates are seen in which of the following conditions?

Hemorrhagic uveitis. **Explanation:** **Keratic Precipitates (KPs)** are inflammatory cell deposits on the corneal endothelium, typically seen in the lower triangular area (Arlt’s triangle) due to convection currents in the aqueous humor. **1. Why Hemorrhagic Uveitis is Correct:** In **hemorrhagic uveitis**, there is an accumulation of red blood cells (RBCs) in the anterior chamber. These RBCs deposit on the corneal endothelium, giving the precipitates a characteristic **red or "rusty" appearance**. This is distinct from standard inflammatory KPs, which are usually white or gray. **2. Analysis of Incorrect Options:** * **Granulomatous Uveitis:** Characterized by **"Mutton-fat" KPs**. These are large, greasy, yellowish-white clusters composed of epithelioid cells and macrophages. * **Old Healed Uveitis:** KPs in this stage appear **pigmented (crenated)** or "dusted" with melanin. They are usually shrunken and non-active. * **Acute Anterior Uveitis:** Typically presents with **small to medium-sized, discrete, white KPs** (lymphoid cells). They are non-greasy and indicate an active non-granulomatous process. **Clinical Pearls for NEET-PG:** * **Arlt’s Triangle:** The classic distribution of KPs on the inferior cornea. * **Krukenberg’s Spindle:** A vertical line of pigment on the endothelium (seen in Pigment Dispersion Syndrome), not to be confused with inflammatory KPs. * **Stellate KPs:** Fine, star-shaped precipitates distributed over the entire endothelium; characteristic of **Fuchs’ Heterochromic Iridocyclitis** and Viral Uveitis (CMV/Herpes). * **Plastic/Fibrinous Aqueous:** Seen in severe acute anterior uveitis (e.g., HLA-B27 associated).

Q: Diagnose the condition.

Wilson's disease. ***Wilson's disease*** - The image shows **Kayser-Fleischer rings** - pathognomonic **golden-brown copper deposits** at the corneal periphery (Descemet's membrane). - These rings are virtually **diagnostic of Wilson's disease**, a copper metabolism disorder causing hepatic and neurological manifestations. *Keratoconus* - Presents with **cone-shaped corneal protrusion** and **Munson's sign** (lower eyelid bulging when looking down). - Does not cause **golden-brown rings** at the corneal periphery like shown in the image. *Glaucoma* - Characterized by **optic disc cupping** and **visual field defects**, not corneal ring findings. - May cause **corneal edema** in acute cases, but not the **golden-brown deposits** seen here. *Williams syndrome* - A **genetic disorder** causing distinctive facial features and **stellate iris pattern**. - Does not produce **Kayser-Fleischer rings** or corneal copper deposition.

Q: What is seen in the fundus of a patient with disseminated tuberculosis?

Choroid tubercles. **Explanation:** **Choroid Tubercles (Correct Answer):** In disseminated or miliary tuberculosis, the bacilli reach the eye via the **hematogenous route**. The choroid is the most common site of involvement because it is the most vascularized tissue in the eye. Choroid tubercles appear as multiple, small (0.5 to 3.0 mm), yellowish-white, ill-defined nodules, typically located in the posterior pole. Their presence is a pathognomonic sign of miliary TB and often aids in the systemic diagnosis. **Why other options are incorrect:** * **Optic Atrophy:** This is a late-stage sequela of various conditions (like chronic papilledema or TB meningitis) but is not a primary or diagnostic fundus finding of disseminated TB itself. * **Papilledema:** While this can occur in TB patients, it is usually secondary to **Tuberculous Meningitis (TBM)** causing increased intracranial pressure, rather than the direct hematogenous spread of the bacilli to the globe. * **Macular Edema:** This is a non-specific finding seen in various inflammatory conditions (uveitis) or vascular disorders, but it is not the characteristic hallmark of disseminated TB. **High-Yield Clinical Pearls for NEET-PG:** * **Most common ocular lesion in TB:** Anterior uveitis (granulomatous). * **Pathognomonic sign of Miliary TB:** Choroid tubercles. * **Eales’ Disease:** An idiopathic peripheral perivasculitis (often linked to TB hypersensitivity) characterized by peripheral retinal neovascularization and vitreous hemorrhage. * **Treatment:** Standard Anti-Tubercular Therapy (ATT). Note that Ethambutol can cause **optic neuritis** (retrobulbar), a common side effect tested in exams.

Q: Which of the following is a feature of Fuch's heterochromic iridocyclitis?

All the above. **Explanation:** **Fuchs’ Heterochromic Iridocyclitis (FHI)**, also known as Fuchs’ Uveitis Syndrome, is a chronic, typically unilateral, non-granulomatous low-grade uveitis. It is a high-yield topic for NEET-PG due to its unique clinical presentation and lack of typical inflammatory signs. **Why "All the above" is correct:** * **Heterochromia of Iris (Option A):** This is the hallmark feature. Due to iris stromal atrophy, the affected eye usually becomes lighter (hypochromic). In patients with light-colored irides, the eye may paradoxically appear darker due to the visibility of the posterior pigment epithelium. * **Keratic Precipitates (Option B):** FHI is characterized by **small, round, or stellate (star-shaped) white KPs** that are distributed diffusely over the entire corneal endothelium (unlike the typical Arlt’s triangle seen in other uveitis). * **Posterior Subcapsular Cataract (Option C):** This is the most common complication of FHI, occurring in nearly 75-85% of cases. Glaucoma is the second most common complication. **Clinical Pearls for NEET-PG:** 1. **The "Silent" Uveitis:** FHI is typically asymptomatic. There is **no redness, no pain, and no photophobia** (ciliary congestion is absent). 2. **Amsler’s Sign:** This is a diagnostic feature where filiform hemorrhage occurs at the chamber angle following paracentesis or minor trauma during surgery. 3. **Treatment Paradox:** Unlike other forms of uveitis, FHI **does not respond to topical steroids**, and they should generally be avoided as they accelerate cataract and glaucoma formation. 4. **No Posterior Synechiae:** Despite chronic inflammation, the formation of posterior synechiae is characteristically absent in FHI.

Question 1

A 2-year-old unimmunized child from a hilly tribal area developed Keratomalacia after a viral infection. Which of the following viral infections could have led to the development of Keratomalacia?

Accepted Answer

Rubeola

Answer

Rubella

Answer

Mumps

Answer

Varicella

Question 2

Which condition presents with uveitis, auditory problems, and cutaneous issues?

Accepted Answer

Vogt-Koyanagi-Harada syndrome

Answer

Behcet's disease

Answer

Ankylosing spondylitis

Answer

Marfan's syndrome

Question 3

What is the most common intraocular tumor in adults?

Accepted Answer

Metastasis

Answer

Retinoblastoma

Answer

Malignant melanoma

Answer

Vitreous tumor

Question 4

A 10-year-old child presents with Fanconi's syndrome. Which of the following ocular findings is most characteristic?

Accepted Answer

Kayser-Fleischer ring

Answer

Vogt's striae

Answer

Fleischer ring

Answer

Stocker line

Question 5

Systemic corticosteroids in herpes zoster ophthalmicus are indicated when associated with which of the following conditions?

Accepted Answer

Optic neuritis

Answer

Facial nerve palsy

Answer

Post-herpetic neuralgia

Answer

All of the above

Question 6

Red keratin precipitates are seen in which of the following conditions?

Accepted Answer

Hemorrhagic uveitis

Answer

Granulomatous uveitis

Answer

Old healed uveitis

Answer

Acute anterior uveitis

Question 7

Diagnose the condition.

Accepted Answer

Wilson's disease

Answer

Keratoconus

Answer

Glaucoma

Answer

Williams syndrome

Question 8

The use of highly active anti-retroviral therapy (HAART) is associated with the development of:

Accepted Answer

Posterior Uveitis

Answer

Keratitis

Answer

Anterior Uveitis

Answer

Optic neuritis

Question 9

What is seen in the fundus of a patient with disseminated tuberculosis?

Accepted Answer

Choroid tubercles

Answer

Optic atrophy

Answer

Papilledema

Answer

Macular edema

Question 10

Which of the following is a feature of Fuch's heterochromic iridocyclitis?

Accepted Answer

All the above

Answer

Heterochromia of iris

Answer

Keratic precipitates

Answer

Posterior subcapsular cataract

Ocular Manifestations of Systemic Disorders — MCQs

Ocular Manifestations of Systemic Disorders — MCQs

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