Carboxymethylcellulose Eye Drops Dosage (Kitni aur Kaise daalni hai)
CMC eye drops (Refresh, Recuro, Systane) are an OTC artificial tear. Correct application technique is essential for effective relief.
Adult Dose (Baalgon ke liye)
- 1–2 drops in each affected eye, as needed
- Preservative-free (PF) vials: Use as often as needed — unlimited use is safe
- Preserved (multidose) formula: Maximum 4 times per day — excessive use of the BAK preservative causes corneal toxicity
Child Dose (Bachon ke liye)
- Most ages: same as adult (1–2 drops as needed)
- Infants/newborns: paediatric eye specialist guidance required
- Contact lens wearing children: PF formula only
Preserved vs Preservative-Free — Dosing Difference
| Formula | Max Frequency | Best For |
|---|---|---|
| Preservative-Free (PF vials) | Unlimited — as needed | Frequent use, contact lenses, sensitive eyes |
| Preserved (multidose) | Max 4x/day | Occasional use only |
How to Apply Eye Drops (Kaise daalen — Step by Step)
1. Wash hands thoroughly 2. Tilt head slightly back or lie down 3. Gently pull down the lower eyelid (to create a pocket) 4. Instil 1–2 drops into the eye 5. Gently close the eye for 1–2 minutes 6. Gently press the inner corner for 5 seconds — to reduce nasal drainage 7. Blink so the drop spreads evenly
Contact Lens Instructions
Preservative-Free Formula (Preferred)
- Can be used directly with lenses in
Preserved Formula (with BAK)
1. REMOVE lenses first 2. Instil CMC drops 3. Wait 15–20 minutes 4. Then reinsert lenses
Multiple Eye Drops — Order Matters
If prescribed therapeutic eye drops are also being used: 1. Instil prescribed drops first 2. Wait 5 minutes 3. Instil CMC artificial tears LAST
Single-Dose Vials — Important
- Use immediately after opening the seal
- Discard remaining solution immediately — contamination risk
- Do not reuse
When to Stop and See Doctor
- No improvement within 72 hours — possible underlying condition
- Symptoms worsen — possible allergic reaction or infection
- Eye pain or vision loss — EMERGENCY
Dose Summary Table
| Patient | Dose | Frequency |
|---|---|---|
| Adult (PF formula) | 1–2 drops per eye | As needed — unlimited |
| Adult (preserved formula) | 1–2 drops per eye | Max 4x/day |
| Contact lens wearer | 1–2 drops (PF preferred) | As needed during wearing |
| Post-op patient | As per surgeon | Follow surgeon's instructions |
The information in this guide is for educational purposes only. Always confirm dose and frequency with your pharmacist or doctor.