The goal of management of Glaucoma is?

RRB Staff Nurse Delhi-2015

Medical & Surgical Nursing

Easy

Appeared in: RRB Staff Nurse Delhi-2015

Explanation

The fundamental goal of glaucoma management is to lower intraocular pressure (IOP) to prevent irreversible damage to the optic nerve.
Lowering IOP is achieved through two primary mechanisms: decreasing the production of aqueous humor or increasing its outflow (drainage) from the eye.
Increasing the outflow of aqueous humor is a major therapeutic strategy, employed by several classes of medications (like prostaglandin analogs and miotics) and surgical procedures.
Therefore, increasing the outflow of aqueous humor is a correct and essential goal in the management of glaucoma.

Option A: Increasing the inflow (production) of aqueous humor would raise the intraocular pressure, which is the opposite of the therapeutic goal. This would accelerate optic nerve damage.
Option C: Similar to increasing inflow, increasing the production of aqueous humor would elevate intraocular pressure, worsening the glaucoma.
Option D: This option is incorrect because two of the listed actions (increasing inflow and increasing production) are medically wrong and harmful for a patient with glaucoma.

Visual 1: Diagram - An illustration of the anterior chamber of the eye showing the pathway of aqueous humor. The diagram should clearly label the ciliary body (production site), trabecular meshwork, and canal of Schlemm (outflow pathways) to help visualize how medications can affect IOP.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacological management of glaucoma and aqueous humor dynamics as background academic context rather than a clinical decision trigger.
Nurses play a vital role in educating patients about glaucoma medications, including their purpose, administration technique (e.g., punctal occlusion), and the importance of lifelong adherence to prevent irreversible blindness.
Understanding the different mechanisms of action helps the nurse anticipate potential side effects and recognize the rationale for combination therapy.
What if a patient's IOP is not controlled with a single medication? The ophthalmologist may add a second medication with a different mechanism. For example, adding a beta-blocker (decreases production) to a prostaglandin analog (increases outflow) attacks the problem from two angles, often leading to better IOP control.

How to Approach the Question

First, identify the core concept of the question, which is the treatment goal for glaucoma.
Recall the basic pathophysiology of glaucoma: it is characterized by high intraocular pressure (IOP) that damages the optic nerve.
Logically deduce the treatment goal: to lower the IOP.
Analyze how IOP is maintained: it's a balance between the production (inflow) and drainage (outflow) of aqueous humor.
Evaluate each option based on the goal of lowering IOP. Ask yourself, 'Would this action lower or raise the pressure?'
Eliminate options that would raise the pressure (increasing inflow/production). Select the option that correctly describes a method to lower the pressure (increasing outflow).

Concept Tested & Keywords

Concept Tested: Pharmacological management of glaucoma and aqueous humor dynamics.
Stem keywords: Glaucoma, management, goal
Lead-in keywords: is?

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