Air assisted lamellar keratectomy for the corneal haze model.
10.4142/jvs.2015.16.3.349
- Author:
Soohyun KIM
1
;
Young Woo PARK
;
Euiri LEE
;
Sang Wan PARK
;
Sungwon PARK
;
Jong Whi KIM
;
Je Kyung SEONG
;
Kangmoon SEO
Author Information
1. Department of Veterinary Clinical Science, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea. kmseo@snu.ac.kr
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
ablated corneal depth;
air assisted lamellar keratectomy;
canine eye;
corneal haze;
porcine eye
- MeSH:
Animals;
Cornea/*surgery;
Corneal Opacity/etiology/*surgery;
Disease Models, Animal;
Dogs;
Humans;
Ophthalmologic Surgical Procedures/*methods;
Sus scrofa;
*Wound Healing
- From:Journal of Veterinary Science
2015;16(3):349-356
- CountryRepublic of Korea
- Language:English
-
Abstract:
To standardize the corneal haze model in the resection depth and size for efficient corneal haze development, air assisted lamellar keratectomy was performed. The ex vivo porcine corneas were categorized into four groups depending on the trephined depth: 250 microm (G1), 375 microm (G2), 500 microm (G3) and 750 microm (G4). The stroma was equally ablated at the five measurement sites in all groups. Significant differences were observed between the trephined corneal depths for resection and ablated corneal thickness in G1 (p < 0.001). No significant differences were observed between the trephined corneal depth for resection and the ablated corneal thickness in G2, G3, and G4. The resection percentage was similar in all groups after microscopic imaging of corneal sections. Air assisted lamellar keratectomy (AK) and conventional keratectomy (CK) method were applied to six beagles, after which development of corneal haze was evaluated weekly until postoperative day 28. The occurrence of corneal haze in the AK group was significantly higher than that in the CK group beginning 14 days after surgery. Alpha-smooth muscle actin expression was significantly higher in the AK group (p < 0.001) than the CK group. Air assisted lamellar keratectomy was used to achieve the desired corneal thickness after resection and produce sufficient corneal haze.
