Provides perhaps the most positive fixation for corneal relaxing incisions as well as phaco incisions
Low profile design with no glare
The original Thornton Ring was designed to fixate the globe while performing Radial and Astigmatic Keratotomy (RK and AK) (original design was fixed only and not a swivel handle)
Dr. Howard Fine asked Mastel to remove a segment of the Thornton ring to allow phaco incisions, and the rest is history.
Provides a pattern for performing non-guided LRI incisions in a simple manner
Properly finished teeth may redden the conjunctiva but not lead to subconjunctival hematomas
By retropulsing the globe while applying pressure to the sclera, IOP increases which improves incision depth
Note: All modern globe fixation rings have their origins based upon designs by Spencer P. Thornton, MD.
Additional information
Ring Type
Fixed, Swivel
Diameter
12 mm, 13 mm, 14 mm, 14.75 mm
Handle
Bores, Thornton
Opening Width
9.5mm
Increments
10°, 45°
Handle Options
*Image Not To Scale*
Specifications
Degree Markings: every ten degrees with wider grooves at every 45° for cardinal references
Inner Diameter: 12, 13, 14, or 14.75 mm
Head: Fixed or Swivel
Handle: Bores or Thornton
Resources
Limbal Relaxing Incisions: A Practical Guide by Louis D Nichamin, MD is available here.
Fine Thornton Ring
$485.00 – $675.00
Description
Additional information
Fixed, Swivel
12 mm, 13 mm, 14 mm, 14.75 mm
Bores, Thornton
9.5mm
10°, 45°
Handle Options
*Image Not To Scale*
Specifications
Degree Markings: every ten degrees with wider grooves at every 45° for cardinal references
Inner Diameter: 12, 13, 14, or 14.75 mm
Head: Fixed or Swivel
Handle: Bores or Thornton
Resources
Limbal Relaxing Incisions: A Practical Guide by Louis D Nichamin, MD is available here.