Trypan Blue Ophthalmic Solution
Trypan Blue Ophthalmic Solution is a specialized diagnostic dye widely utilized in ophthalmic procedures, primarily designed to enhance the visualization of delicate ocular tissues that are otherwise difficult to distinguish with the naked eye or standard surgical imaging. Composed of a water-soluble azo dye with high tissue specificity, this sterile, biocompatible solution is formulated to be gentle on ocular structures while delivering consistent, reliable staining results—critical for minimizing irritation and ensuring compatibility with the sensitive microenvironment of the eye. This solution plays a crucial role in cataract surgery, one of the most common ophthalmic procedures worldwide, where it effectively stains the anterior capsule of the lens, a thin, transparent membrane that is often indistinguishable from surrounding tissues without contrast enhancement. By rendering this transparent structure a distinct blue hue, it becomes clearly visible to ophthalmologists, even under operating microscope magnification.
Such enhanced visualization is vital for ensuring precision in key surgical steps, such as capsulorhexis—the creation of a precise, circular opening in the anterior capsule—which directly impacts the success of intraocular lens implantation and overall surgical outcomes. A well-executed capsulorhexis, facilitated by Trypan Blue staining, helps prevent complications like capsule rupture, which could lead to intraoperative difficulties or post-operative visual impairment. Beyond cataract surgery, Trypan Blue also finds valuable application in other ocular interventions, including corneal procedures (such as corneal transplantations and refractive surgeries) and vitreoretinal surgeries, where it aids in identifying subtle tissue boundaries, differentiating pathological from healthy tissue, and preventing accidental damage to surrounding critical structures like the cornea, retina, or optic nerve.
By improving tissue visibility and surgical accuracy, this diagnostic dye significantly enhances patient safety, reduces the risk of intra- and post-operative complications, and supports ophthalmologists in delivering more effective, reliable care tailored to each patient’s needs. Its non-toxic, rapidly excreted nature further contributes to its clinical utility, as it minimizes long-term ocular exposure and associated risks. As an indispensable tool in the ophthalmic field, Trypan Blue Ophthalmic Solution continues to be a cornerstone of modern ocular diagnostics and surgical practice, empowering ophthalmologists to perform complex procedures with greater confidence and improving patient outcomes across a wide range of ocular conditions.
Model and Specification
0.5 mL, 0.6 mL, 0.7 mL, 0.8 mL, 0.9 mL, 1.0 mL, 1.1 mL, 1.2 mL, 1.3 mL, 1.4 mL,
1.5 mL, 1.6 mL, 1.7 mL, 1.8 mL, 1.9 mL, 2.0 mL, 3.0 mL
Structure and Composition
This product consists of trypan blue as the active ingredient, disodium hydrogen phosphate, sodium dihydrogen phosphate, sodium chloride, and water for injection. The product is sterilized by moist heat.
Product Performance Indicators
1. Appearance: Dark blue, clear liquid, free from visible foreign matter.
2. Filled Volume: Not less than 93% of the labeled volume.
3. pH Value: 6.0 – 8.0.
4. Osmolality: 260 – 340 mOsm/kg H₂O.
5. Active Ingredient Content: Nominal concentration of trypan blue is 0.60 mg/mL (±20%).
Sterility
The product is sterile.
Intended Use
Trypan Blue Ophthalmic Solution is intended for staining the anterior capsule of the lens during ophthalmic surgery to enhance visualization of the capsule, thereby facilitating cataract procedures such as continuous curvilinear capsulorhexis.
Directions for Use
Draw 0.1 mL of Trypan Blue Ophthalmic Solution into a 1 mL sterile syringe, then draw 0.3 mL of sterile air.
After entering the anterior chamber through a side port incision, inject approximately 0.3 mL of sterile air to form an air bubble, followed by the injection of 0.1 mL of Trypan Blue Ophthalmic Solution onto the anterior capsule.
Adequate staining is achieved within approximately 3 seconds. Irrigate the anterior chamber thoroughly with balanced salt solution to remove excess dye, then inject an ophthalmic viscoelastic agent. Standard phacoemulsification surgery may then be performed.
Precautions
Do not use if the package is damaged.
The staining time shall not exceed 30 seconds.
For ophthalmic use only. Not for oral administration or any other use.
This product shall only be used by qualified ophthalmic surgeons.
Use the lowest effective concentration and minimize intraocular retention time.
Contraindications
This product is contraindicated in patients with known hypersensitivity to trypan blue.
The safety of this product in pregnant or lactating women has not been established.
Packaging
Neutral borosilicate glass vial.
Storage and Transportation
Store at room temperature in a dry, clean, well-ventilated place, protected from light.
Transport under normal conditions. Handle with care. Avoid impact, moisture, and direct sunlight.
