Glaucoma Nursing Care Plan

Glaucoma destroys the optic nerve quietly. By the time a chronic patient notices missing peripheral vision, nerve damage is already done and it does not come back. Your job is to protect what vision is left: keep intraocular pressure controlled, drive home that the drops are nonnegotiable for life, and know the difference between a slow chronic course and an acute attack that is a true emergency.

What is Glaucoma?

Glaucoma is optic nerve damage from inadequate drainage of aqueous humor out of the anterior chamber, which raises intraocular pressure (IOP). Untreated, the rising pressure atrophies the optic nerve and ends in blindness. It runs in families and often shows up later in life.

There are two main types. Chronic open-angle glaucoma is by far the most common, accounting for 90% of cases. It develops slowly, may go with diabetes and myopia, and usually affects both eyes. It gives no early warning, and peripheral vision is lost so gradually that major nerve damage can occur before anyone catches it.

Narrow-angle (angle-closure) glaucoma is less common and can follow eye trauma, inflammation, or pupil dilation after mydriatic drops. An acute attack brings sudden excruciating pain in or around the eye, blurred vision, and ocular redness. This is a medical emergency because blindness can follow fast.

Nursing Care Plans and Management

Nursing Problem Priorities

• Recognize signs and symptoms, including an acute attack.
• Monitor IOP and optic nerve function.
• Administer prescribed eye drops to control IOP.
• Educate on risk factors, treatment, and the need for regular exams.
• Support adjustment to vision loss and refer to specialists.

Nursing Assessment

Assess for the following:

• Gradual loss of peripheral vision
• Increased intraocular pressure
• Blurred or hazy vision
• Halos around lights
• Vision loss or blindness
• Headache or eye strain

Nursing Interventions and Actions

1. Controlling Intraocular Pressure and Protecting Vision

Determine the type and degree of visual loss. It shapes your interventions and the patient's expectations.

Let the patient talk about the loss, real or feared. Early treatment can prevent blindness, but vision already gone will not return, so the patient is grieving while you teach.

Reduce visual hazards. Cut clutter, move furniture out of the travel path, teach the patient to turn the head to scan, and correct for dim light and poor night vision.

Demonstrate eye drop administration: count the drops, hold the schedule, never skip a dose. Consistent dosing controls IOP and prevents further loss. Stress meticulous compliance (see Pharmacologic Management).

For an acute attack, give sedation and analgesics as needed. Sudden pain feeds anxiety and agitation, which drives IOP higher. Medical management may need 4 to 6 hours before pressure drops and pain eases.

Prepare for surgical intervention as indicated:

• Laser trabeculoplasty (argon laser, ALT), trabeculectomy, or trephination. Filtering procedures lower IOP by opening a channel between the anterior chamber and the subconjunctival space so aqueous humor bypasses the trabecular block. Apraclonidine (Iopidine) drops may be paired with laser to blunt a postprocedure IOP spike.
• Iridectomy. Removing a piece of the iris reroutes aqueous humor to normal outflow channels. It is done in both eyes because glaucoma usually develops in the other eye too.
• Cycloplegic drops after peripheral iridectomy. These relax the ciliary muscle, cut inflammation, and prevent adhesions. Use them only in the affected eye. In the normal eye they can trigger an acute angle-closure attack and threaten the remaining vision.
• Molteno valve implant. Separates ciliary body from sclera to improve outflow.
• Cyclocryotherapy. Used in intractable glaucoma.
• Diathermy or cryosurgery. If other treatments fail, destroying the ciliary body cuts aqueous humor production.
• Aqueous-venous shunt. An experimental implant that prevents scarring or closure of the drainage sac from a trabeculectomy.

2. Reducing Anxiety

The fear of going blind is real, and the chronic, irreversible nature of the disease keeps patients on edge.

Gauge the anxiety, the pain, the suddenness of onset, and what the patient already knows. These shape how threatened the patient feels and can work against your efforts to control IOP.

Give accurate, honest information. Explain that careful monitoring and treatment can prevent further loss. Facts lower anxiety and support informed choices.

Let the patient name concerns and feelings. It surfaces misconceptions you can correct.

Keep the environment calm. Soft lighting and low noise help.

Teach relaxation: deep breathing, progressive muscle relaxation, guided imagery, mindfulness. These ease tension and pull attention off anxious thoughts.

Connect the patient to support groups and resources.

3. Patient Education and Health Teaching

Name the side effects and adverse reactions to watch for: decreased appetite, nausea, vomiting, diarrhea, fatigue, a drugged feeling, decreased libido, impotence, cardiac irregularities, syncope, and heart failure. About 50% of patients develop sensitivity or allergy to parasympathomimetics (pilocarpine) or anticholinesterase drugs, which means a medical reevaluation and a possible regimen change.

Push glaucoma screening. Everyone older than 35, especially those with a family history, should have a yearly tonometric exam.

Review the disease, the prognosis, and the lifelong need for treatment. It is controllable, not curable.

Have the patient wear medical identification (MedicAlert bracelet). It warns caregivers in an emergency to avoid contraindicated drugs such as atropine.

Demonstrate eye drop, gel, or disc technique and get a return demonstration.

Hold the drug schedule and avoid the wrong drugs. Mydriatic drops (atropine, propantheline bromide), overuse of topical steroids, and additive beta-blockade from systemic beta-blockers all cause trouble. Some dilate the pupil, raise IOP, and risk more vision loss. All beta-blocking glaucoma drops are contraindicated in greater than first-degree heart block, cardiogenic shock, or overt heart failure.

Encourage a calmer lifestyle and avoid IOP spikes. Heavy lifting and pushing, snow shoveling, and tight or constricting clothing can all precipitate an acute attack. Stress raises the emotional response that pushes the iris forward.

Cover dietary basics: adequate fluid, bulk, and fiber. This keeps stool soft and avoids straining at stool.

Stress routine checkups.

Report these immediately: severe eye pain, inflammation, increased photophobia, increased tearing, visual field changes, a veil-like curtain, blurred vision, flashes of light, or floating particles. They can signal a detached retina or other complication.

Have family members examined regularly. A hereditary tendency toward shallow anterior chambers puts them at risk. Screen Black patients in every age group more often, given the higher incidence and more aggressive course.

Identify socialization resources. Lost acuity can stop the patient from driving and lead to withdrawal, so point them to support groups, services for the visually impaired, the local library, and transportation services.

4. Pharmacologic Management

Glaucoma drugs lower IOP either by cutting aqueous humor production or improving its drainage. Classes include prostaglandin analogs, beta-blockers, alpha-adrenergic agonists, carbonic anhydrase inhibitors, and cholinergic agents, given as drops or oral tablets.

Cholinergics (miotics): pilocarpine hydrochloride (Isopto Carpine, Ocusert disc, Pilopine HS gel). These constrict the iris sphincter, deepen the anterior chamber, and open the outflow vessels during an acute attack or before surgery. Ocusert is a disc placed in the lower eyelid that can stay up to 1 week before replacement.

Beta-blockers: timolol maleate (Timoptic), betaxolol (Betoptic), carteolol (Ocupress), metipranolol (OptiPranolol), levobunolol (Betagan). These cut aqueous humor production without changing pupil size, vision, or accommodation. Use caution or avoid in bradycardia or asthma because of systemic effects.

Carbonic anhydrase inhibitors: acetazolamide (Diamox), methazolamide (Neptazane), dorzolamide (Trusopt). These slow aqueous humor production. Systemic effects are common, including mood changes, GI upset, and fatigue.

For narrow-angle (angle-closure) type: miotics until the pupil constricts, plus carbonic anhydrase inhibitors such as acetazolamide (Diamox), dichlorphenamide (Daranide), and methazolamide (Neptazane) to lower secretion and IOP.

Sympathomimetics: dipivefrin (Propine), brimonidine (Alphagan), epinephrine (Epifrin), apraclonidine (Iopidine), latanoprost (Xalatan). These also cut aqueous humor production and help when the patient does not respond to other drugs. They avoid miosis, blurring, and night blindness but can add cardiovascular effects with other cardiac agents. Light-colored eyes respond more strongly than dark eyes, so adjust dosing accordingly.