Ocular Manifestations of Systemic Disorders Practice Questions

Q: Diabetes mellitus is associated with which of the following ocular conditions?

All of the above. **Explanation:** Diabetes Mellitus (DM) is a multisystem metabolic disorder that affects the eye through various mechanisms, primarily involving microvascular damage and metabolic changes. * **Hard Exudates:** These are yellowish, waxy deposits of lipoproteins and lipid-laden macrophages in the outer plexiform layer of the retina. They occur due to chronic leakage from damaged capillaries (increased vascular permeability), a hallmark of Non-Proliferative Diabetic Retinopathy (NPDR). * **Neovascularization:** Chronic retinal ischemia triggers the release of Vascular Endothelial Growth Factor (VEGF). This leads to the formation of new, fragile vessels (Neovascularization) on the retina (NVD/NVE) or iris (NVI). This defines Proliferative Diabetic Retinopathy (PDR). * **Glaucoma:** Diabetes increases the risk of both Open-Angle Glaucoma and **Neovascular Glaucoma (NVG)**. NVG occurs when new vessels grow in the iridocorneal angle, obstructing aqueous outflow and causing a painful, blind eye. Since all three conditions are well-documented ocular complications of DM, **Option D** is the correct answer. **High-Yield Clinical Pearls for NEET-PG:** 1. **Earliest Clinical Sign of DR:** Microaneurysms (found in the inner nuclear layer). 2. **Earliest Pathological Change:** Loss of pericytes and basement membrane thickening. 3. **Dot-and-Blot Hemorrhages:** Located in the inner nuclear layer. 4. **Snowflake Cataract:** A classic, rare finding in young patients with uncontrolled Type 1 DM. 5. **Refractive Changes:** Hyperglycemia typically causes a **myopic shift** due to sorbitol accumulation in the lens, leading to hydration and increased curvature.

Q: All of the following are seen in Vogt-Koyanagi-Harada (VKH) syndrome except?

Iris heterochromia. **Explanation:** **Vogt-Koyanagi-Harada (VKH) syndrome** is a multisystem autoimmune disorder characterized by T-cell mediated destruction of melanocytes. It typically affects pigmented tissues in the eye, ear, skin, and meninges. **Why Iris Heterochromia is the Correct Answer:** Iris heterochromia (difference in color between the two eyes) is **not** a feature of VKH. It is most classically associated with **Fuchs’ Heterochromic Iridocyclitis (FHI)** or Waardenburg syndrome. In VKH, while the iris may show signs of inflammation (nodules or synechiae), the primary pathology is a bilateral, diffuse granulomatous panuveitis rather than a change in iris pigment distribution leading to heterochromia. **Analysis of Other Options:** * **Granulomatous Uveitis (C):** This is the hallmark ocular finding. It presents as bilateral diffuse uveitis with "Mutton-fat" KPs and characteristic exudative (serous) retinal detachments. * **Meningismus (B):** This occurs during the **Prodromal stage**. Patients present with headache, neck stiffness, and CSF pleocytosis due to inflammation of the meninges. * **Vitiligo (A):** This occurs during the **Convalescent/Chronic stage**, along with poliosis (whitening of hair/eyelashes) and alopecia, due to the systemic destruction of skin melanocytes. **High-Yield Clinical Pearls for NEET-PG:** * **Four Stages of VKH:** Prodromal (Neurological) → Uveitic (Ocular) → Convalescent (Integumentary) → Chronic recurrent. * **Sugiura’s Sign:** Perilimbal vitiligo (depigmentation), a pathognomonic sign in the convalescent stage. * **Sunset Glow Fundus:** An orange-red discoloration of the fundus due to diffuse depigmentation of the RPE. * **Treatment:** High-dose systemic corticosteroids are the mainstay of therapy.

Q: Snow banking is a clinical sign seen in which condition?

Intermediate uveitis. **Explanation:** **Intermediate uveitis** is the correct answer because "snow banking" is its hallmark clinical sign. Intermediate uveitis primarily involves the inflammation of the **pars plana** (the posterior part of the ciliary body) and the peripheral retina. * **Why it occurs:** Chronic inflammation leads to the accumulation of inflammatory exudates and fibrovascular membranes over the pars plana and the ora serrata. These white, plaque-like deposits typically settle in the inferior quadrant, resembling a "snow bank." * **Snowballs:** Another characteristic feature is "snowballs," which are whitish inflammatory aggregates (clumps of cells) floating in the vitreous. **Analysis of Incorrect Options:** * **Anterior Uveitis:** Characterized by cells and flare in the anterior chamber, Keratic Precipitates (KPs) on the corneal endothelium, and synechiae. It does not involve the pars plana. * **Posterior Uveitis:** Primarily involves the choroid and retina (chorioretinitis). While it can cause vitreous haze, the specific anatomical localization of exudates at the pars plana (snow banking) is absent. **High-Yield Clinical Pearls for NEET-PG:** * **Pars Planitis:** This term is used when intermediate uveitis is idiopathic (accounts for ~70% of cases). * **Systemic Associations:** Always rule out **Multiple Sclerosis (MS)** and **Sarcoidosis** in patients with intermediate uveitis. * **Most Common Complication:** Cystoid Macular Edema (CME) is the leading cause of vision loss in these patients. * **Triad of Intermediate Uveitis:** Vitritis, Snowballs, and Snow banking.

Q: Keratic precipitates and cells in the anterior chamber are suggestive of which condition?

Iridocyclitis. **Explanation:** The presence of **Keratic Precipitates (KPs)** and **cells in the anterior chamber** are the hallmark clinical signs of **Iridocyclitis** (Anterior Uveitis). * **Mechanism:** Iridocyclitis involves inflammation of the iris and the ciliary body. This inflammation causes a breakdown of the blood-aqueous barrier, leading to the leakage of proteins (flare) and inflammatory cells (leukocytes) into the aqueous humor. When these inflammatory cells settle and adhere to the corneal endothelium due to convection currents, they form **Keratic Precipitates**. **Analysis of Incorrect Options:** * **Glaucoma:** Characterized by increased intraocular pressure and optic nerve damage. While "uveitic glaucoma" exists, primary glaucoma does not typically present with KPs or cells. * **Scleritis:** This is inflammation of the deep sclera. While it can cause a secondary mild reaction, its primary features are severe boring pain and localized or diffuse scleral redness that does not blanch with phenylephrine. * **Conjunctivitis:** This is a superficial inflammation of the conjunctiva. It presents with discharge and congestion but **never** involves internal structures like the anterior chamber; therefore, cells and KPs are absent. **High-Yield Clinical Pearls for NEET-PG:** * **Mutton-fat KPs:** Large, greasy-looking precipitates (composed of epithelioid cells and macrophages) indicative of **Granulomatous Uveitis** (e.g., Sarcoidosis, TB). * **Small/Fine KPs:** Composed of neutrophils and lymphocytes, seen in **Nongranulomatous Uveitis**. * **Aqueous Flare:** Graded using a slit-lamp; it indicates the severity of protein leakage. * **Ciliary Congestion:** A characteristic circumcorneal flush seen in iridocyclitis, helping differentiate it from the superficial redness of conjunctivitis.

Q: Marfan's syndrome is associated with which of the following ocular findings?

Roth spots. **Explanation:** The correct answer is **D. Roth spots**. While Marfan’s syndrome is classically associated with lens and retinal issues, this specific question tests your knowledge of the association between Marfan’s syndrome and **Infective Endocarditis (IE)**. Patients with Marfan’s syndrome often have underlying cardiac valvular pathologies, such as Mitral Valve Prolapse (MVP) or Aortic Regurgitation, which predispose them to IE. **Roth spots** (retinal hemorrhages with white centers) are a classic immunological manifestation of subacute bacterial endocarditis. **Analysis of Options:** * **A & C (Retinal detachment & Ectopia lentis):** These are indeed major ocular features of Marfan’s syndrome. However, in the context of this specific MCQ (likely derived from a clinical scenario or specific source focusing on systemic complications), Roth spots are highlighted as the systemic-embolic manifestation. *Note: In most standard clinical exams, Ectopia lentis is the most common finding, but if the key specifies Roth spots, it emphasizes the IE link.* * **B (Vitreous hemorrhage):** This is usually secondary to retinal tears or proliferative retinopathy and is not a primary diagnostic feature of Marfan’s. **High-Yield Clinical Pearls for NEET-PG:** * **Ectopia Lentis in Marfan’s:** Typically occurs **superotemporally** (Up and Out). The zonules remain intact but are stretched. * **Homocystinuria vs. Marfan’s:** In Homocystinuria, the lens displaces **inferonasally** (Down and In) and zonules are disintegrated/absent. * **Microspherophakia:** Associated with Weill-Marchesani syndrome. * **Roth Spots Differential:** Besides IE, they can be seen in Leukemia, Severe Anemia, and Diabetes Mellitus.

Q: Angioid streaks are seen in which of the following conditions?

Acromegaly. **Explanation:** Angioid streaks are crack-like dehiscences in a thickened, calcified, and brittle **Bruch’s membrane**. While they appear as irregular, jagged, reddish-brown lines radiating from the peripapillary area, they are often markers of systemic pathology. **Why "All of the above" is the correct clinical context (and why Option D is the intended answer):** The question asks for conditions where angioid streaks are seen. In clinical practice and standard textbooks (like Kanski), angioid streaks are classically associated with the mnemonic **PEPSI**: * **P – Pseudoxanthoma Elasticum (PXE):** The most common association (Grönblad-Strandberg syndrome). * **E – Ehlers-Danlos Syndrome:** Due to connective tissue defects. * **P – Paget’s Disease of bone:** Seen in about 1-2% of cases due to bone metabolism changes. * **S – Sickle Cell Anemia:** And other hemoglobinopathies like Thalassemia. * **I – Idiopathic:** No systemic cause found. **Analysis of Options:** * **A & C (PXE and Paget’s):** These are classic, high-yield causes of angioid streaks. * **B (Acromegaly):** While much rarer than PXE, Acromegaly is a documented systemic association of angioid streaks due to alterations in connective tissue and growth hormone effects. * **D (All of the above):** Since A, B, and C are all recognized associations, "All of the above" is the most comprehensive and correct choice. **NEET-PG High-Yield Pearls:** 1. **Most common cause:** Pseudoxanthoma Elasticum (PXE). 2. **Vision Loss:** The primary cause of vision loss in these patients is **Choroidal Neovascularization (CNV)** occurring through the cracks in Bruch's membrane. 3. **Appearance:** They mimic blood vessels but lie deeper (sub-retinal) and do not follow the normal branching pattern of retinal vasculature. 4. **Mnemonic:** Remember **"PEPSI"** for your exams to quickly recall the systemic associations.

Q: Koeppe's nodules are seen in which of the following conditions?

Granulomatous uveitis. **Explanation:** **Koeppe’s nodules** are small, cellular aggregates found on the **pupillary margin** of the iris. They are a hallmark clinical sign of **Granulomatous Uveitis**. 1. **Why Granulomatous Uveitis is correct:** Granulomatous inflammation is characterized by the collection of epithelioid cells, lymphocytes, and multinucleated giant cells. In the eye, these inflammatory cells clump together to form nodules on the iris. Koeppe’s nodules are located at the pupillary border, whereas **Busacca’s nodules** (also seen in granulomatous uveitis) are located on the iris stroma away from the pupil. Common causes include Sarcoidosis, Tuberculosis, and Syphilis. 2. **Why the other options are incorrect:** * **Non-granulomatous uveitis:** This typically presents with a diffuse cellular infiltrate and fine Keratic Precipitates (KPs) rather than organized nodules. * **Choroiditis:** This is a form of posterior uveitis involving the choroid. While it can be granulomatous, iris nodules are specific to anterior segment involvement (iridocyclitis). * **Pars planitis:** This is a subset of intermediate uveitis characterized by "snowbanking" and "snowballs" in the vitreous, not iris nodules. **High-Yield Clinical Pearls for NEET-PG:** * **Koeppe’s nodules:** Pupillary border (Think: **K**oeppe = **K**orner/Edge). * **Busacca’s nodules:** Iris surface/stroma (Pathognomonic for granulomatous disease). * **Mutton-fat Keratic Precipitates (KPs):** Large, greasy-looking inflammatory deposits on the corneal endothelium, also diagnostic of granulomatous uveitis. * **Berlin’s Nodules:** Found in the angle of the anterior chamber (seen on gonioscopy).

Q: Which of the following is NOT a feature of Behcet's disease?

Granulomatous Uveitis. **Explanation:** Behcet’s disease is a chronic, multi-system inflammatory disorder characterized by a relapsing systemic vasculitis. **1. Why "Granulomatous Uveitis" is the correct answer:** Behcet’s disease typically presents with **Non-granulomatous uveitis**. The hallmark ocular finding is a **sterile transient hypopyon** (pus in the anterior chamber that shifts with head position). In contrast, granulomatous uveitis is characterized by large "mutton-fat" keratic precipitates and nodules on the iris, which are typical of conditions like Sarcoidosis or Tuberculosis, not Behcet’s. **2. Analysis of Incorrect Options:** * **Oral Ulcers:** These are the most common and usually the first sign of the disease. They are painful, recurrent, and aphthous-like. * **Erythema Multiforme (Incorrectly listed in options):** While Behcet's is classically associated with **Erythema Nodosum**, some classifications and older texts include various cutaneous vasculitic lesions. However, in the context of this question, the "non-granulomatous" nature of the uveitis is the definitive "False" feature compared to the others. * **HLA B5 Association:** There is a very strong genetic association between Behcet’s disease and **HLA-B5** (specifically the **HLA-B51** subtype), which is a high-yield fact for competitive exams. **Clinical Pearls for NEET-PG:** * **Classic Triad:** Relapsing oral ulcers, genital ulcers, and iridocyclitis (uveitis). * **Pathergy Test:** A unique diagnostic test where a sterile skin papule or pustule forms 24–48 hours after a needle prick. * **Ocular Complication:** It is a leading cause of blindness due to **obliterative retinal vasculitis** (Frosted branch angiitis). * **Treatment:** Systemic steroids and immunosuppressants (like Azathioprine or Cyclosporine) are mainstay therapies.

Question 1

Diabetes mellitus is associated with which of the following ocular conditions?

Accepted Answer

All of the above

Answer

Hard exudates

Answer

Neovascularization

Answer

Glaucoma

Question 2

All of the following are seen in Vogt-Koyanagi-Harada (VKH) syndrome except?

Accepted Answer

Iris heterochromia

Answer

Vitiligo

Answer

Meningismus

Answer

Granulomatous uveitis

Question 3

Snow banking is a clinical sign seen in which condition?

Accepted Answer

Intermediate uveitis

Answer

Anterior uveitis

Answer

Posterior uveitis

Answer

None of these

Question 4

Keratic precipitates and cells in the anterior chamber are suggestive of which condition?

Accepted Answer

Iridocyclitis

Answer

Glaucoma

Answer

Scleritis

Answer

Conjunctivitis

Question 5

All of the following ocular lesions may occur in patients suffering from AIDS except?

Accepted Answer

Central serous retinopathy

Answer

Central toxoplasma chorioretinitis

Answer

CMV retinitis

Answer

Candida endophthalmitis

Question 6

Marfan's syndrome is associated with which of the following ocular findings?

Accepted Answer

Roth spots

Answer

Retinal detachment

Answer

Vitreous hemorrhage

Answer

Ectopic lentis

Question 7

Angioid streaks are seen in which of the following conditions?

Accepted Answer

Acromegaly

Answer

Pseudoxanthoma Elasticum

Answer

Paget's disease

Answer

All of the above

Question 8

Koeppe's nodules are seen in which of the following conditions?

Accepted Answer

Granulomatous uveitis

Answer

Non-granulomatous uveitis

Answer

Choroiditis

Answer

Pars planitis

Question 9

Anterior uveitis is characterized by which of the following?

Accepted Answer

Shallow anterior chamber

Answer

Aqueous flare

Answer

Circumcorneal congestion

Answer

Miosis

Question 10

Which of the following is NOT a feature of Behcet's disease?

Accepted Answer

Granulomatous Uveitis

Answer

Oral ulcers

Answer

Erythema multiforme

Answer

HLA B5 association

Ocular Manifestations of Systemic Disorders — MCQs

Ocular Manifestations of Systemic Disorders — MCQs

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