Quick Facts

• Approved indication: Intraocular irrigating solution.
• Therapeutic role: Supports perfusion of the eye during intraocular surgical procedures.
• Function: Helps maintain the physiological state of the eye’s internal structures during certain ophthalmic surgeries.

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BSS Plus is indicated for use as an intraocular irrigating solution during surgical procedures that involve the perfusion of the eye. This agent is applied within the eye by a healthcare professional during the procedure itself.

The primary therapeutic role of BSS Plus is to support the functional state and integrity of delicate internal structures of the eye, such as the corneal endothelium, during surgery. This utility may be particularly important in surgical procedures requiring a relatively long duration of internal perfusion, such as pars plana vitrectomy, phacoemulsification, cataract extraction/lens aspiration, and anterior segment reconstruction.

The solution is intended to maintain tissue health by approximating the natural conditions of the eye's internal fluid.

BSS Plus (Balanced Salt Solution Plus) is intended for use in patients undergoing intraocular surgical procedures requiring perfusion of the eye. As an irrigating solution with minimal systemic absorption, population restrictions are primarily tied to surgical safety and product components.

Contraindications and Restrictions

The official regulatory labeling addresses eligibility through the following strict classifications:

Classification	Population/Condition	Official Regulatory Status
Contraindication	Hypersensitivity to any component	Use is absolutely contraindicated
Caution	Patients with Diabetes (undergoing vitrectomy)	Use with caution due to observed intraoperative lens changes

Age-Specific Eligibility

• Pediatric Patients: No differences in safety or effectiveness have been observed between adults and pediatric patients following use of this product.
• Geriatric Patients: No overall differences in safety or effectiveness have been observed between older and younger patients, and no age-based restriction is noted.

Unestablished Safety

Official documents do not contain established safety data for use in pregnant women or nursing mothers.

Interactions with other medicines and products

BSS Plus is an intraocular irrigating solution and, according to official regulatory documentation, it possesses no documented pharmacological action. This classification uniquely defines the product's official interaction profile, which explicitly accounts for the absence of systemic drug-drug, metabolic, or transporter-mediated interactions typically documented for pharmacologically active medicines. No specific interacting medicinal products are listed in official regulatory sources.

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Compositional and Procedural Restrictions

The primary constraints documented in official labeling focus strictly on maintaining the solution's required integrity and safety during surgical use.

Interaction Type	Official Regulatory Statement
Prohibited Co-Formulation	There is a strict prohibition against using additives other than BSS PLUS Concentrate Part II with the product. The unauthorized addition of other substances is explicitly stated as potentially resulting in tissue damage to the eye.
Timing Constraint	Any unused portion of the final prepared solution must be discarded six hours following reconstitution to ensure stability and procedural safety requirements are met.

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Population-Specific Interaction Notes

The regulatory label includes specific cautions related to patient condition rather than systemic co-administered drugs. Caution is mandated when using the solution in diabetic patients undergoing vitrectomy. This note is included due to observations of intraoperative lens changes associated with the use of iso-osmotic irrigating solutions in this patient population. The labeling confirms no specific systemic contraindications to the use of BSS Plus itself.

The mechanism of BSS Plus involves the regulation of physiological parameters and the supply of cellular substrates, based on precisely mimicking the natural fluid environment of the eye, rather than classical pharmacological action. It operates by delivering the chemical and energetic components required to facilitate the function of intraocular tissues, particularly the cornea and retina, during surgical perfusion.

️ Maintaining Physiological and Osmotic Stability

The solution acts as an immediate physiological buffer by providing a balanced composition of Electrolytes and Bicarbonate to achieve a precise pH and osmolality that matches the natural aqueous humor. This biophysical stability modulates cellular stress and structural changes, facilitating the viability of sensitive Retinal and Corneal tissues by avoiding detrimental fluid and ionic shifts.

Fueling Active Fluid Transport (Detumescence)

This domain addresses the solution's role as a metabolic support system, supplying Dextrose as a direct energy substrate for the Na^+/ K^+-ATPase pump located in the corneal endothelial cells. This consistent energy supply maintains the pump's active function, initiating the continuous and energy-intensive fluid removal ( detumescence), which is the specific physiological process that influences corneal transparency.

️ Providing Cellular Protection against Oxidative Stress

The solution is enriched with Glutathione Disulfide to support the cell's natural redox homeostasis, augmenting its defenses against harmful reactive oxygen species (ROS) generated during the surgical environment. This mechanism modulates the integrity and function of the metabolically vulnerable endothelial cells and the retinal tissue, influencing the sustained activity of the fluid transport and stability systems.

BSS Plus is used exclusively as an intraocular irrigating solution during ophthalmic surgical procedures. This specialized agent provides a physiological fluid environment to support the eye's internal structures during complex interventions. The route of administration is strictly Intraocular Irrigation; the solution is labeled as not for injection or intravenous infusion.

Preparation and Administration Protocol

The solution is prepared on-site just prior to use. It is supplied as a two-part kit, requiring the concentrated Part II to be aseptically reconstituted with the larger Part I base immediately before the procedure. To maintain its specific composition and sterility, any unused portion of the mixed solution must be discarded within six hours of preparation.

Since BSS Plus functions as a supportive, non-pharmacological medium, there is no fixed numerical dose. It is used continuously throughout the duration of the surgery, following the standard technique employed by the operating surgeon. This pattern of continuous use is particularly relevant for procedures that may require a relatively long duration of internal eye perfusion. The product is intended for single patient use only.

The administration set must be sterile and typically includes an air-inlet to facilitate proper gravity flow. No specific dose adjustments are detailed for pediatric or geriatric patient populations, as differences in effectiveness have not been observed across these age groups.

Research evidence / Overview of studies for BSS Plus

Evidence for Use in Long-Duration Intraocular Procedures

Clinical research has studied BSS Plus for use during complex or extended eye surgeries, such as vitrectomy. The evidence includes Randomized Controlled Trials (RCTs) and comparative clinical studies that research examined the solution's properties compared to older, simpler salt solutions. The main focus was monitoring outcomes related to physiological strain or stress on the corneal endothelium, primarily tracking changes in cell health and swelling.

Findings describe patterns observed in the studies where use was associated with patterns of corneal integrity preservation reported in some studies compared to older, simpler salt solutions, particularly during longer surgical times. The measured differences were more frequently documented in studies involving procedures that required greater perfusion stress or in patients with pre-existing corneal vulnerabilities. What remains uncertain is the effect when compared to newer, similarly enriched solutions, as comparative evidence is lacking for many modern alternatives.

Evidence for Use in Cataract Surgery

BSS Plus was evaluated in RCTs and systematic reviews focusing on cataract extraction. This research examined to determine whether the formulation was associated with patterns of maintained health of the corneal cells. Reported outcomes varied depending on the trial and duration of surgery. For shorter, uncomplicated procedures, some measured outcomes were similar to standard irrigating solutions. However, findings indicate that the enriched solution may be associated with different patterns of corneal cell maintenance in longer or more vulnerable cases.

Long-Term Study Follow-Up and Durability

The available evidence base consists primarily of studies observing responses over defined time intervals that are considered short-term (immediately after surgery) and intermediate (up to 60 days). There is limited information for long-term outcomes that look beyond a few months. Studies contribute to the broader evidence landscape, but the potential durability of the observed findings on corneal cell maintenance over many years is not fully established.

What Remains Uncertain About BSS Plus Research

Comparative evidence is lacking in trials that directly examine BSS Plus against the newest generation of similarly enriched irrigating solutions. Additionally, the follow-up durations were limited in many core studies. The subgroup findings are uncertain in some areas; for example, specific trials for certain types of short, routine surgeries have reported outcomes that varied when compared to standard solutions.

Key Studies & References

1. BSS PLUS- balanced salt solution enriched with bicarbonate, dextrose, and glutathione kit (Official Prescribing Information)
2. The Evaluation of Balanced Salt Solution During Cataract Surgery (ClinicalTrials.gov - Ongoing/Future Study Design for Compromised Corneas)

Common questions about BSS Plus (FAQ)

Q: Is BSS Plus the same as standard saline or salt water?

BSS Plus is not the same as standard saline or simple salt water. Official documents show its formula is complex, including essential electrolytes, a bicarbonate buffer, dextrose, and glutathione disulfide. This special composition is designed to closely match the natural fluid environment of the eye during surgery, unlike simple salt solutions.

Q: How does BSS Plus differ from BSS (without the Plus)?

The 'Plus' in the name indicates the addition of key metabolic components to the base BSS (Balanced Salt Solution) formula. These added agents are Dextrose (an energy source) and Glutathione Disulfide (a compound that supports cell protection). These enrichments are included to help support corneal function during the surgical procedure.

Q: What happens if the two parts of BSS Plus are not mixed correctly?

The official labeling describes a specific preparation protocol that must be followed just before use. The labeling states that unauthorized addition of other substances, or failure to properly adhere to the protocol, can potentially result in tissue damage to the eye.

Q: Can BSS Plus cause any temporary blurriness after use?

Adverse reactions documented in official reports include instances of corneal edema (swelling) and corneal clouding after use. These conditions involve changes to the cornea's clarity, which are associated with visual disturbances.

Q: Has anyone reported severe allergic reactions to BSS Plus?

The official prescribing information states that BSS Plus is absolutely contraindicated for any patient with a known hypersensitivity (severe allergic potential) to any of its components.

Q: What substances or medications should not be mixed with BSS Plus?

Regulatory labeling strictly prohibits mixing BSS Plus with any substance or medication other than its own Part II concentrate. Unauthorized mixing is explicitly cautioned against, as this can potentially lead to tissue damage in the eye.

Q: Is BSS Plus ever used for non-eye-related procedures?

BSS Plus is classified and intended exclusively as an intraocular irrigating solution for use only during ophthalmic (eye) surgery. Official documents explicitly label the product as not for injection or intravenous infusion into the body.

Q: Are there specific studies about BSS Plus usage in pregnant patients?

Official regulatory documents state that there is currently no established safety data available for the use of BSS Plus in patients who are pregnant or nursing mothers.

Q: Are there any long-term effects associated with BSS Plus use?

The available research evidence consists primarily of studies that observe patient responses over short-term (immediate post-surgery) and intermediate (up to 60 days) time frames. Official documentation notes that there is limited information available for outcomes that extend beyond a few months.

Q: Is BSS Plus used for moisturizing the eye or only for irrigation?

BSS Plus is classified and intended as an Intraocular Irrigating Solution to stabilize the internal structures of the eye during surgery. It is not approved or intended for the external, general moisturizing of the eye surface.

Q: Does the 'Plus' in BSS Plus mean it has extra vitamins or nutrients?

The 'Plus' refers to the addition of specialized metabolic agents to the base salt formula. These include Dextrose (which is an energy source) and Glutathione Disulfide (which provides a form of cell protection). These components are added to help facilitate the function of intraocular tissues during surgery.

Q: Can BSS Plus be used for cleaning contact lenses?

BSS Plus is classified and intended solely for use as an intraocular irrigating solution inside the eye during surgery. It is not approved or intended for external uses, such as cleaning contact lenses or as a general eye wash.

Q: Is BSS Plus used to prevent corneal swelling?

Studies and official information indicate that the solution is effective for providing corneal detumescence. Detumescence is the process of actively removing fluid to reverse swelling in the cornea. This activity helps maintain corneal clarity.

Q: Why is it important for the solution to be buffered, as BSS Plus is?

The bicarbonate component acts as a physiological buffer to help achieve a precise pH and osmolality that matches the eye's natural fluid environment. This biophysical stability is necessary to help modulate cellular stress and structural changes in sensitive eye tissues during the procedure.

Q: Are there specific warnings about BSS Plus use described in official documents?

Official documents detail warnings, including the strict prohibition against adding any substance other than the Part II concentrate, and a caution concerning the use of iso-osmotic irrigating solutions in diabetic patients undergoing vitrectomy.

Q: What are the general instructions for preparing BSS Plus for use?

The solution is supplied as a two-part kit that must be prepared on-site immediately before the surgery. The concentrated Part II must be aseptically reconstituted (mixed under sterile conditions) with the larger Part I base before it can be used for irrigation.

Storage and Disposal Requirements for BSS Plus

The storage and handling of BSS Plus (Balanced Salt Solution Enriched) are strictly defined by regulatory labeling to ensure product integrity, as it is supplied as a two-part kit for reconstitution.

Storage Conditions

Condition	Requirement (Unreconstituted Components)
Temperature	Store between 2^circC to 25^circC (36^circF to 77^circF)
Restriction	Do not freeze the Part I and Part II solutions.
Integrity Check	Do not use if the container is damaged, the seals are not intact, or the vacuum is absent.
Safety	Keep the product out of the reach of children.

Stability and Disposal

The prepared solution is non-preserved and must be used within six hours of reconstitution. Any unused portion of the mixed solution must be immediately discarded after the six-hour stability period. BSS Plus is for single-patient use only, and the entire container must be disposed of following the procedure.