Early-stage sign of cataract is - - RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

Medical & Surgical Nursing

Easy

Appeared in: RUHS, Jaipur, PB B.Sc Nursing Entrance-2024

Explanation

A cataract is defined as an opacity or cloudiness of the crystalline lens of the eye.
This clouding scatters light as it enters the eye, preventing it from focusing properly on the retina.
The most common and characteristic early symptom resulting from this process is a painless and gradual blurring of vision.
Patients may also experience increased sensitivity to glare, especially from headlights at night, and a feeling that their surroundings are dimmer.

Option A: Cataract formation is a painless process. Eye pain is a significant red flag symptom that points towards other urgent conditions.
Option B: Floating spots, or floaters, originate in the vitreous humor (the gel filling the eye), not the lens. They are caused by clumps of collagen or cells in the vitreous.
Option D: While monocular diplopia (double vision in one eye) can be caused by a cataract, it is not the most common or typical early sign. Blurred vision is far more prevalent.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Early clinical manifestations of cataracts as background academic context rather than a clinical decision trigger.
Nurses play a vital role in identifying patients with potential cataracts through vision screening and health history assessment. Recognizing that painless, blurred vision is a key symptom allows for timely referral to an ophthalmologist.
Patient education is a core nursing function. Nurses must teach patients about the progressive nature of cataracts, risk factor modification (e.g., UV protection, smoking cessation), and the benefits and risks of cataract surgery.
Post-operative care for cataract surgery is a critical nursing responsibility, including instructing the patient on administering eye drops, adhering to activity restrictions, and recognizing signs of complications like infection or increased intraocular pressure.

How to Approach the Question

First, identify the key concepts in the question: "early-stage sign" and "cataract".
Recall the basic pathophysiology of a cataract: it is a clouding (opacity) of the eye's lens.
Think logically about how a cloudy lens would affect vision. A clear lens focuses light, so a cloudy lens would scatter or block light.
This scattering of light would lead to a blurry or hazy image, not sharp pain or distinct spots.
Evaluate the options: 'Eye pain' is inconsistent with the painless nature of lens aging. 'Floating spots' are related to the vitreous humor, not the lens. 'Diplopia' is possible but less common than general blurriness. 'Blurred vision' is the most direct and common consequence of a clouded lens.
Therefore, select 'Blurred vision' as the most characteristic early sign.

Concept Tested & Keywords

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E6 Nursing Brunner Adult Health 3SA Vol 2 Part 1 p. 99-101

E6 Medicine Davidson Principles Practice 24e p. 1190-1192