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RRB Optometrist Previous Year MCQs on Ocular Pharmacology Master High-Yield RRB Optometry PYQs & Answer for CBT Success Mastering ocular and systemic pharmacology is essential for securing a top rank in the Railway Recruitment Board paramedical examination. This targeted compilation of RRB Optometrist Previous Year MCQs focuses on core drug mechanisms, adverse reactions, and clinical guidelines directly aligned with the official syllabus. Key Clinical Concepts Covered in These RRB Optometrist PYQs Mechanism and aqueous humor dynamics of alpha-2 agonists like brimonidine tartrate Anti-inflammatory mechanisms and indications of topical ophthalmic corticosteroids Primary autacoid mediators in ocular allergic reactions Drug-induced accommodation loss and blurred vision from anticholinergic agents Contact lens disinfection chemistry, preservation, and corneal safety protocols First-line medical therapy for severe hypertriglyceridemia Review each authentic RRB Optometry PYQs & Answer below, complete with concise rationales designed to strengthen your conceptual clarity, prevent negative marking, and boost your CBT performance. Practice JRRB Optometrist Previous Year MCQs on "Ocular Pharmacology": Q-1: Select the incorrect statement regarding contact lens disinfection and related chemical agents. (RRB Optometrist Previous Year MCQs 2019) A) Thermal disinfection with a used saline solution: mild keratitisB) Chemical disinfection with thermal treatment of lenses: discolors the polymerC) Thimerosal: clouds the lens or the caseD) Thermal disinfection of high-water content hydrophilic lenses: opaque or wrinkled lenses Click "Show more" to see the answer and explanation. Show more Answer: A) Thermal disinfection with a used saline solution: mild keratitisExplanation: Thermal disinfection is a safe and effective method when proper saline and protocols are followed, and it does not inherently cause mild keratitis. Thimerosal, a mercury-containing preservative, can lead to lens clouding or case discoloration, while improper thermal treatment of certain polymers may cause discoloration or structural lens damage. Show less Q-2: Which autacoid is involved in allergic reactions? (RRB Optometrist Year Question & Answer 2025) A) BradykininB) ProstaglandinC) SerotoninD) Histamine Click "Show more" to see the answer and explanation. Show more Answer: D) HistamineExplanation: Histamine is the primary autacoid released by mast cells during Type I hypersensitivity reactions, mediating itching, redness, and edema via H1 receptor activation. While bradykinin and prostaglandins contribute to inflammation and pain, histamine remains the principal mediator of acute allergic responses in ocular and systemic tissues. Show less . . Q-3: How does brimonidine tartrate work in glaucoma treatment? (RRB Optometrist Previous Year MCQs 2025) A) Beta-2 antagonist; increases aqueous drainageB) Alpha-1 agonist; causes mydriasisC) Alpha-2 agonist; reduces aqueous productionD) Muscarinic antagonist; raises intraocular pressure Click "Show more" to see the answer and explanation. Show more Answer: C) Alpha-2 agonist; reduces aqueous productionExplanation: Brimonidine is a highly selective alpha-2 adrenergic agonist that effectively lowers intraocular pressure by decreasing aqueous humor formation and simultaneously enhancing uveoscleral outflow. This dual mechanism, along with its potential neuroprotective properties, makes it a valuable adjunctive agent for managing open-angle glaucoma. Show less RRB Optometrist CBT Course Promo Target RRB Optometrist CBT 2026 Master Your Govt Job Preparation Join our most successful flagship course on the Optometry Notes & MCQs App. Follow our proven 4-step sequence to crack the Railway Recruitment Board CBT exam. Our Proven Success Sequence 1 📚 Theory Notes Build your foundation with subject-wise clinical & optical theory. 2 🎥 Premium Lectures Deepen understanding with fundamental optometry video lectures. 3 📝 Subject-wise MCQs Test accuracy and speed by practicing topic-specific question banks. 4 🏆 Previous Year MCQs Master actual CBT exam patterns with completely solved PYQs. Enroll in App Course Overview Q-4: Which medication causes blurred vision via anticholinergic effects? (RRB Optometrist Year Question & Answer 2025) A) LisinoprilB) TimololC) LatanoprostD) Diphenhydramine Click "Show more" to see the answer and explanation. Show more Answer: D) DiphenhydramineExplanation: Diphenhydramine, a first-generation antihistamine, blocks muscarinic cholinergic receptors, thereby impairing ciliary muscle contraction and accommodation, which results in clinically significant blurred vision. This anticholinergic side effect is dose-dependent and particularly pronounced in elderly patients, necessitating caution when prescribing for individuals who require clear near vision. Show less . . Q-5: What is the first-line treatment for a diabetic patient with triglycerides >500 mg/dL? (RRB Optometrist Previous Year MCQs 2025) A) Niacin for HDL-CB) Omega-3 fatty acidsC) Atorvastatin for LDL-CD) Fibrates for LDL+TG Click "Show more" to see the answer and explanation. Show more Answer: B) Omega-3 fatty acidsExplanation: High-dose omega-3 fatty acids (eicosapentaenoic acid and docosahexaenoic acid) are the preferred initial therapy to rapidly reduce triglyceride levels below 500 mg/dL and mitigate the risk of acute pancreatitis in diabetic patients. Unlike fibrates, omega-3s effectively lower triglycerides without significantly elevating LDL cholesterol, making them a safer and guideline-recommended option for this specific metabolic abnormality. Show less Q-6: What is the main ophthalmic use of topical corticosteroids?(RRB Optometrist Year Question & Answer 2026) A) Antibacterial actionB) MydriasisC) IOP reductionD) Anti-inflammation Click "Show more" to see the answer and explanation. Show more Answer: D) Anti-inflammationExplanation: Topical corticosteroids, such as prednisolone acetate and dexamethasone, are primarily employed for their potent anti-inflammatory effects by inhibiting phospholipase A2 and subsequent prostaglandin and leukotriene synthesis. They are critical for managing sight-threatening ocular inflammations including acute uveitis, severe allergic conjunctivitis, and postoperative inflammation, though prolonged use mandates vigilant monitoring for steroid-induced glaucoma and cataract formation. Show less . . Generalized Locked MCQs Section Q-11: [Paste Your Question Here] A) Option 1 B) Option 2 C) Correct Option D) Option 4 Explanation: [Paste your detailed explanation here so Google can index it.] Q-12: [Paste Your Question Here] A) Option 1 B) Correct Option C) Option 3 D) Option 4 Unlock the Full Question Bank Get access to all remaining premium MCQs, detailed explanations, and complete subject notes. Enroll in our Govt Job Preparation Course to secure your success. Enroll in App Course Overview RRB Optometrist 2026 PYQs RRB Optometrist 2026 Complete Previous Year MCQs (All Subjects Solved) 🧪 Ocular Pharmacology 6 MCQs ➔ 🌍 Community & Pediatric 7 MCQs ➔ 👓 Dispensing Optics 8 MCQs ➔ 👁️ Contact Lens 7 MCQs ➔ 💓 Ocular Physiology 15 MCQs ➔ ⚙️ Instrumentation 14 MCQs ➔ ♊ Binocular Vision 11 MCQs ➔ 🔆 Optics in Optometry 22 MCQs ➔ 🔎 Clinical Refraction 13 MCQs ➔ 👁️🗨️ Ocular Anatomy 21 MCQs ➔ 🏥 Ocular Diseases 30 MCQs ➔ RRB Optometrist CBT Course Promo Target RRB Optometrist CBT 2026 Master Your Govt Job Preparation Join our most successful flagship course on the Optometry Notes & MCQs App. Follow our proven 4-step sequence to crack the Railway Recruitment Board CBT exam. Our Proven Success Sequence 1 📚 Theory Notes Build your foundation with subject-wise clinical & optical theory. 2 🎥 Premium Lectures Deepen understanding with fundamental optometry video lectures. 3 📝 Subject-wise MCQs Test accuracy and speed by practicing topic-specific question banks. 4 🏆 Previous Year MCQs Master actual CBT exam patterns with completely solved PYQs. Enroll in App Course Overview The RRB Optometrist recruitment conducted under the Ministry of Railways offers a prime opportunity for eye care professionals targeting a secure RRB Optometry Govt Job. Candidates preparing for an upcoming RRB Optometrist Vacancy can review the standardized eligibility norms, pay scale, and exam structure below to streamline their preparation for this sought-after RRB Optometrist govt job. Key Job Parameters Post Title: Optometrist. Pay Scale: Level 4 of the 7th CPC Pay Matrix, featuring an initial basic pay of ₹25,500 plus applicable allowances. Educational Qualification: B.Sc in Optometry or a Diploma in Ophthalmic Technique/Technician (with a course duration of 3 to 4 years) from a recognized university or institution, along with valid registration with the relevant Council or Licensing body. Age Limit: 18 to 33/36 years, with standard category-based upper age relaxations applicable for OBC, SC, ST, PwBD, and Ex-Servicemen. Medical Fitness Standard: B-1 Standard, which requires sound distance and near vision along with intact colour, binocular, night, and mesopic vision. Candidates who have undergone LASIK or any other refractive surgery are not eligible for posts with the B-1 medical standard. CBT Examination Pattern & Scheme The selection process consists of a Single-Stage Computer Based Test (CBT), followed by Document Verification (DV) and the Railway Medical Examination. Exam Duration and Structure: The CBT lasts for 90 minutes (120 minutes for eligible PwBD candidates using a scribe) and consists of 100 objective-type multiple-choice questions (MCQs) for a total of 100 marks. Marking Scheme: Each correct response earns 1 mark, with a strict negative marking deduction of 1/3 mark for every incorrect answer. Professional Ability (70 Marks): This core technical segment consists of 70 questions and tests optometry domains such as Physical & Visual Optics, Ocular Anatomy & Physiology, Refraction, Contact Lenses, Binocular Vision, Dispensing Optics, Optometric Instruments, and Ocular Pathology. General Awareness (10 Marks): Comprises 10 questions covering current affairs, history, polity, and related topics. General Arithmetic, Intelligence & Reasoning (10 Marks): Comprises 10 questions testing quantitative and analytical aptitude. General Science (10 Marks): Comprises 10 questions covering basic Physics, Chemistry, and Life Sciences.

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