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CORNEA SURGERY

 

Limbal Relaxing Incisions (LRI)
Concerning the intraoperativ aberrometry with incisional astigmatism correction you have a benefit from the virtual cylinder axle marking and the measurement of the refractiv values of the relaxing incisions. This way it is possible to optimize introperativ position und extention by real-time aberrometry.

Perforating Ceratoplastic (PKP)
Approximately 100.000 surgeries per year, 5000 of them in Germany. The cornea transplantation [1] is the most frequent transplantation in human medicine. Despite all efforts in technical improvements more then 20% of the ceratoplastic patients suffer for a irregular significant astigmatism [2].

Intraoperative corneale topography / aberrometry
The intraoperative presentation of the cornea topography would be a guarantee for a more effective reduction of astigmatism during PKP. [3]
Currently it is not possible to answer the question how far the intraoperative aberrometry could bring significant information for perforating ceratoplastic and anterior chamber conditions.

Research & Development
Our Research and Development project sponsered by civil ZIM / BMWi  contains the development of a sensoric for intraoperative cornea aberrometry & topography.

 

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Literature

[1] C. Cursiven, B. Seitz, F. Kruse (2005): Hornhauttransplantation. Glänzende Bilanz und viele Perspektiven; Deutsches Ärzteblatt; pp. 3078-3080

[2] K. William, D. Roder, A. Estermann, S. Muehlberg (1992): Factors predictive of corneal garft survival; Ophthalmology; pp. 99: 403-414

[3] Artaria (1995): Computerized corneal topographie in treatment of high grade astigmatism after perforating keratoplasty; Klein. Monatsblätter für Augenheilkunde; pp. 23: 87-90