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The Hersh-Greenstein 2-Point Corneal Marker is a specialized reusable ophthalmic marking instrument designed for creating initial reference marks during Corneal Tissue Addition Keratoplasty (CTAK) procedures. The double-ended configuration provides two defined marking dimensions on each instrument, allowing the surgeon to select the appropriate size combination according to the planned corneal tissue position and surgical marking requirements.
This product is available in seven verified size combinations, providing a broad range of reference dimensions for corneal surgical planning. The instrument is used during the initial marking stage of the CTAK workflow, where the center of the pupil serves as the reference point for placement.
The Hersh-Greenstein 2-Point Corneal Marker is available in the following configurations:
1.0mm & 1.25mm, 1.5mm & 1.25mm, 2.0mm & 2.25mm, 2.5mm & 2.75mm, 3.0mm & 3.25mm, 3.5mm & 3.75mm, and 3.75mm & 4.0mm.
Each configuration incorporates two defined marking dimensions in one double-ended ophthalmic instrument. This allows the surgeon to choose the appropriate marker based on the planned corneal tissue position and the required reference spacing.
The instrument uses a double-ended configuration, with each end corresponding to a specific marking dimension. This design provides two reference sizes within a single marker and reduces the need to use separate instruments for adjacent measurements.
The two-point working end is intended to create precise reference marks during the initial corneal marking stage. These marks can then assist with subsequent surgical planning and positioning during the CTAK procedure.
The primary function of the Hersh-Greenstein marker is to establish initial pupil-referenced marks during CTAK surgical preparation. The center of the pupil is used as the reference point when determining marker placement.
Once the initial marks are created, they can be used to guide subsequent optic-zone marking and femtosecond-laser channel planning according to the surgeon's established technique and the individual procedural plan.
The Hersh-Greenstein marker is designed as a reusable ophthalmic surgical instrument. Its precision working ends should be handled carefully during use, cleaning, inspection and storage to preserve the geometry of the marking surfaces.
Before each procedure, both ends should be visually inspected to confirm that the selected dimensions remain properly formed and free from visible deformation or retained residue.
This instrument is intended for ophthalmic surgeons and corneal surgery centers performing CTAK and related corneal surgical workflows that require defined two-point reference marking.
The availability of multiple size combinations allows the surgeon to select a marker that corresponds more closely to the planned corneal tissue position and intended surgical geometry.
| Product Name | Hersh-Greenstein 2-Point Corneal Marker |
|---|---|
| Instrument Type | Reusable Corneal Marker |
| Pattern | Hersh-Greenstein 2-Point |
| Configuration | Double-Ended Two-Point Marker |
| Available Size 1 | 1.0mm & 1.25mm |
| Available Size 2 | 1.5mm & 1.25mm |
| Available Size 3 | 2.0mm & 2.25mm |
| Available Size 4 | 2.5mm & 2.75mm |
| Available Size 5 | 3.0mm & 3.25mm |
| Available Size 6 | 3.5mm & 3.75mm |
| Available Size 7 | 3.75mm & 4.0mm |
| Reusable | Yes |
| Primary Application | Initial Pupil-Referenced Corneal Marking for CTAK Procedures |
| Specialty | Ophthalmology / Corneal Surgery |
| Brand | Peak Surgicals |
Clean and process the marker according to the healthcare facility's validated ophthalmic instrument-processing procedures and applicable product-specific instructions. Inspect both marking ends before each use for visible deformation, residue or surface damage. Particular attention should be given to preserving the geometry of each size-specific working end.
The product is available in seven verified two-point size combinations.
Available configurations are 1.0/1.25mm, 1.5/1.25mm, 2.0/2.25mm, 2.5/2.75mm, 3.0/3.25mm, 3.5/3.75mm and 3.75/4.0mm.
Yes. Each instrument incorporates two defined marking dimensions in a double-ended configuration.
It is designed for initial pupil-referenced corneal marking during CTAK procedures.
Yes. It is intended as a reusable ophthalmic surgical marker.
The appropriate size combination should be selected according to the planned corneal tissue position and the surgeon's procedural requirements.