As our biggest seller, the PhDII has often been cited by surgeons as ‘the Swiss Army knife of ophthalmology’. The key to its versatility lies with the incremental step handle combined with incredibly useful blade geometries. The actuation thimble allows for up to 7 preset depths along with a full extension for unguarded use in the free hand mode of operating. Several different thimbles with optimized settings for the surgical preferences are available for glaucoma, cataract and astigmatic keratotomy with sufficient overlap between some of these to satisfy most surgeons even in a group setting.
|Dimensions||4.32 × .262 in|
Fine Triamond, Stegmann MicroCrescent
Refractive Cataract, Cataract Glaucoma, Miller 8, Angulated Slit Lamp
Corneal View, Inset Profile (Used w/Guide Ring or Compass), Profile (Used w/Compass)
The Stegmann MicroCrescent is considered by many to be the ultimate planar dissection blade. The diamond is Stealth faceted (big bevels down), so dissections tend to maintain the plane rather than diving deeper. The very fine, crescent shaped tip (.75 mm) can be wielded to perform practically any dissection.
The flexibility and ultimate sharpness of this diamond geometry is a favorite with many surgeons. It features long side cutting edges (4.5mm) that work for most ophthalmic dissection needs. This robust design is excellent for corneal relaxing incisions, paracentesis and wound enlargement as needed.
The Corneal View footplate provides enhanced applanation of the more central cornea. A single, central downrail supports and encircles the diamond, yet contains a central window for surgical visualization. This footplate glides smoothly along the epithelium with minimal stripping, and it can be combined with a guide ring or the Compass (see Guide Rings or Compass).
The Inset Profile footplate centers the blade within a small notch with two guide rails supporting the blade on both sides. This footplate glides smoothly along the epithelium and provides enhanced applanation and critical depth control. It is suitable for use with any of our popular LRI/AK guide rings due to the fact that the twin side rails support contact on the guide ring surface (see Guide Rings). All this means better alignment and feel for the surgeon performing arcuate keratotomy.
“The corneal incisions made with the dissecting, stiletto-like keratomes (Mastel Fine Triamond) were distinct from the other incisions, having a smoother stromal surface and much less disruption of stromal tissue. The dissecting incision using the stiletto-like diamond keratomes was ideal with respect to the degree of disruption of stromal tissue.”
Journal of Cataract and Refractive Surgery, Volume 24, Number 4, April 1998
Jacobi et. al., Giessen University, Munich, Germany, Pages 498-502