Guide — Med-Surg
Glaucoma & Cataracts Nursing Care
The two most common age-related eye conditions sit at opposite ends of urgency: cataracts cloud vision slowly and are fixed by elective surgery, while glaucoma steals sight silently — and its acute form is a true ophthalmic emergency. Nursing care turns on telling them apart and protecting remaining vision.
8 min read · Med-Surg
Educational use only. Ophthalmic medications, surgical decisions, and postoperative restrictions are provider-directed; this guide covers nursing care and teaching. This material supports nursing education and exam review. It is not medical advice and is not a substitute for clinical judgment, institutional policy, or medical direction. Always follow facility protocols and current provider orders.
Overview
Glaucoma is optic nerve damage usually driven by elevated intraocular pressure (IOP). Open-angle (the common form) is painless and gradual, taking peripheral vision first — “tunnel vision” — and the loss is permanent. Acute angle-closure glaucoma is sudden blockage of aqueous drainage: a red, intensely painful eye that is a sight-threatening emergency.
Cataracts are clouding of the lens — gradual, painless blurring, glare and halos around lights, and faded colors. They are corrected by elective surgery that replaces the lens with an intraocular implant, generally with excellent outcomes.
Open-Angle vs Acute Angle-Closure Glaucoma
| Feature | Open-Angle (chronic) | Acute Angle-Closure |
|---|---|---|
| Onset | Insidious, over years | Sudden — minutes to hours |
| Pain | None | Severe eye pain, headache, nausea/vomiting |
| Vision | Gradual peripheral loss (tunnel vision) | Sudden blurring, halos around lights |
| Eye appearance | Normal | Red eye, fixed mid-dilated cloudy pupil, firm globe |
| Urgency | Chronic management to preserve vision | Emergency — immediate treatment to save sight |
Key Concepts
Glaucoma drops lower IOP — and must be used forever
Prostaglandin analogs (latanoprost), beta-blockers (timolol), and others reduce pressure. The vision already lost won’t return, so the entire point is preventing further loss — which makes lifelong adherence the treatment. Beta-blocker drops can be systemically absorbed: ask about asthma, COPD, and bradycardia.
Punctal occlusion makes drops work and stay local
After instilling a drop, press the inner corner (nasolacrimal duct) for about a minute — it improves ocular absorption and limits systemic side effects. Wait about five minutes between different drops.
Anticholinergics can trigger angle-closure
Pupil-dilating effects (anticholinergics, some decongestants and antihistamines) can precipitate acute angle-closure in susceptible eyes — a reason these carry “glaucoma” warnings.
Cataract surgery is low-drama, high-restriction
Day surgery, but the early postoperative rules protect the eye: avoid bending below the waist, heavy lifting, straining, and rubbing; wear the shield especially at night; expect drops on a schedule.
Nursing Priorities
Recognize the emergency
A red, painful eye with halos, nausea, and sudden vision change is acute angle-closure until proven otherwise — escalate immediately; permanent blindness can follow within hours.
Teach and verify drop technique
Many older patients can’t see the drop, can’t aim it, or can’t feel it land. Watch a return demonstration, suggest devices/aids, and confirm punctal occlusion.
Low-vision safety
Approach within the patient’s field, announce yourself, orient them to the room, keep paths clear and call light in reach, and provide good non-glare lighting — fall prevention is vision care.
Report post-op red flags
After cataract surgery: increasing pain, decreasing vision, flashes or a curtain of floaters (retinal detachment), or purulent drainage all warrant urgent ophthalmology contact.
Therapeutic Communication Considerations
Vision loss threatens independence — driving, reading, recognizing faces — so fear of dependence sits underneath these visits. With glaucoma especially, the absence of symptoms makes adherence hard: the drops cost money and do nothing the patient can feel, so they get skipped. Connect the daily drop to the concrete goal (“this keeps the sight you still have”) rather than abstract pressure numbers.
Always identify yourself by name when entering, explain before touching, and describe what you’re doing — the patient who can’t see you startles easily and reads tone, not faces.
Patient Education
For glaucoma: use the drops exactly and forever, occlude the punctum, don’t double up after a missed dose, keep ophthalmology follow-up for pressure checks, and know that lost vision won’t come back — so don’t wait for symptoms. For cataracts: the surgery is routine and effective; follow the activity restrictions and drop schedule, wear the eye shield, and report increasing pain or worsening vision immediately.
NCLEX Pearls
- ✦Painless gradual peripheral (tunnel) vision loss = open-angle glaucoma; sudden severe pain + red eye + halos + nausea = acute angle-closure emergency.
- ✦After eye drops, apply pressure to the inner canthus (punctal occlusion) for ~1 minute; separate different drops by ~5 minutes.
- ✦Beta-blocker drops (timolol) can cause systemic bradycardia and bronchospasm — screen for asthma/COPD and heart disease.
- ✦After cataract surgery, avoid bending at the waist, heavy lifting, straining, and rubbing the eye.
- ✦Glaucoma vision loss is permanent — lifelong drop adherence is the whole point, even without symptoms.
Related Resources
Standards & sources
Fact-checked Jun 21, 2026This page is written to align with Academy of Medical-Surgical Nurses (AMSN) · Current medical-surgical nursing standards. It is an educational summary, not a citation of any single document — always verify specific doses, values, and protocols against current guidelines and your facility policy. How we source content →