Here is a complete and detailed overview of Carboxymethyl Cellulose (CMC) Eye Drops 1%:
💧 Carboxymethyl Cellulose Eye Drops 1%
✅ DESCRIPTION
Carboxymethyl Cellulose Sodium 1% is a high-viscosity ocular lubricant used for moderate to severe dry eye conditions. It is a synthetic polymer that closely mimics natural tears, providing long-lasting hydration and comfort by forming a protective film over the eye surface.
🧪 FORMULATION
- Active Ingredient: Carboxymethyl Cellulose Sodium 1% (10 mg/mL)
- Dosage Form: Sterile ophthalmic solution
- Preservative:
- May be preservative-free (single-use vials)
- Or contain Benzalkonium Chloride (in multi-dose bottles)
- Other Ingredients:
- Sodium chloride
- Calcium chloride
- Potassium chloride
- Magnesium chloride
- Purified water
- pH buffer (e.g., boric acid or sodium hydroxide)
🌿 NATURE
- Type: Artificial tear / Ocular lubricant
- Class: Demulcent and viscoelastic polymer
- Mechanism of Action:
Forms a protective moisture film over the cornea → reduces tear evaporation → lubricates and hydrates → relieves irritation and promotes epithelial healing
💊 USES
Indicated for moderate to severe dry eye symptoms, including:
- Keratoconjunctivitis sicca
- Dry Eye Disease (DED) due to aging, screen time, LASIK, or systemic illness
- Post-surgical dry eye (e.g., cataract surgery, LASIK)
- Contact lens–induced dryness (if compatible)
- Sjogren’s syndrome or autoimmune eye dryness
Also helpful in:
- Reducing foreign body sensation
- Relieving ocular surface inflammation
🌟 ADVANTAGES
- Thicker consistency – longer eye surface retention
- Provides intensive and extended moisture
- Fewer applications required per day compared to 0.5%
- Preservative-free vials ideal for sensitive eyes and frequent use
- Suitable for nocturnal application due to prolonged effect
⚠️ PRECAUTIONS
Possible Side Effects:
- Temporary blurred vision (due to high viscosity)
- Mild stinging or stickiness
- Eye redness or irritation (rare)
- Allergy to preservatives (in some users)
General Advice:
- Do not touch the dropper tip to avoid contamination
- If using with other eye drops, wait at least 5–10 minutes between applications
- Consult ophthalmologist if no improvement after several days
🚫 CONTRAINDICATIONS
- Known allergy to CMC or other ingredients
- Do not use after expiry or if solution changes color or becomes cloudy
🧊 STORAGE
- Store at 15°C to 25°C (room temperature)
- Protect from direct sunlight and heat
- Do not freeze
- Use single-use vials immediately after opening
- Discard opened multi-dose bottle after 28 days
📦 AVAILABLE BRANDS (India & Global)
- Refresh Celluvisc 1%
- Lubricare Plus
- Tears Plus
- I-Kul Ultra
- Optive Gel Drops
🔍 COMPARISON: CMC 0.5% vs 1%
| Feature | CMC 0.5% | CMC 1% |
|---|---|---|
| Viscosity | Low-medium | High |
| Duration of action | Shorter | Longer |
| Use frequency | More frequent | Less frequent |
| Suitable for | Mild-moderate DED | Moderate-severe DED |
| Blurring after use | Minimal | Slightly more likely |