Au Y K, Mahjoub S B, Reynolds M D, Hart J C
Department of Ophthalmology, Louisiana State University Medical Center, Shreveport 71130-3932.
CLAO J. 1990 Oct-Dec;16(4):306-7.
Recipient tissue weakness is thought to be a cause of the high residual astigmatism that may follow penetrating keratoplasty (PK). In a rabbit model, we investigated the topographic effect of a controlled lamellar keratectomy (6 x 3 x 0.25 mm) on the recipient side following PK. Results from 10 animals indicate an overall flattening of 5 D along the axis of the keratectomy--i.e., the axis of recipient tissue weakness. Our results indicate that recipient corneal integrity may be a factor in corneal transplant topography.
受体组织薄弱被认为是穿透性角膜移植术（PK）后可能出现高残余散光的一个原因。在一个兔模型中，我们研究了在PK术后受体侧进行可控板层角膜切除术（6×3×0.25毫米）的地形学效应。10只动物的结果表明，沿角膜切除术的轴——即受体组织薄弱的轴，整体变平了5 D。我们的结果表明，受体角膜完整性可能是角膜移植地形学中的一个因素。
