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Effect of base curve radius of therapeutic lenses on epithelial healing after laser-assisted subepithelial keratectomy.

Seo JH, Wee WR, Lee JH, Kim MK - Korean J Ophthalmol (2007)

Bottom Line: Patient's age, epithelial healing time, ablation amount, and BCR were compared between these two groups.Group A (R1>R2) had 53 eyes, and Group B (R1<R2) had 39 eyes.Group A showed a shorter epithelial healing time than Group B (5.8+/-1.7 days vs. 6.7+/-2.1 days, p=0.04).

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea.

ABSTRACT

Purpose: To determine the effect of the base curve radius (BCR) of therapeutic soft contact lens (T-lens) on epithelial healing after laser-assisted subepithelial keratectomy (LASEK).

Methods: Ninety-two eyes in 47 patients with myopia were prospectively evaluated after LASEK. All the patients wore T-lenses with the BCR (R1) randomly chosen after LASEK. The T-lenses were removed after complete healing of the epithelial wounds. We calculated an estimated BCR (R2) from postoperative topography using a diopter conversion table. The patients were divided into two groups according to the differences between the BCR (R1) and the estimated BCR (R2). The flat fitting group was R1 > R2 (Group A), and the steep fitting group was R1

Results: Group A (R1>R2) had 53 eyes, and Group B (R1

Conclusions: The flat fitting group showed a shorter epithelial healing time than the steep fitting group after LASEK.

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Related in: MedlinePlus

Estimated mean and standard errors for number of days wearing therapeutic contract lens in Group A and Group B. Group A showed a shorter epithelial healing time than Group B (5.8±1.7 days vs. 6.7±2.1 days, p=0.04). This implies selecting a flat fitting BCR lens is more beneficial on wound healing than a steep fitting lens after LASEK. Group A=Patients with flat fitting (R1>R2), Group B=Patients with steep fitting (R1<R2). R 1: Base curve radius (BCR) of therapeutic contact lens (T-lens) which was randomly selected for patients who underwent LASEK. R 2: BCR of T-lens which were converted from post operative diopters of patients who underwent LASEK by using a diopter conversion table.
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Figure 1: Estimated mean and standard errors for number of days wearing therapeutic contract lens in Group A and Group B. Group A showed a shorter epithelial healing time than Group B (5.8±1.7 days vs. 6.7±2.1 days, p=0.04). This implies selecting a flat fitting BCR lens is more beneficial on wound healing than a steep fitting lens after LASEK. Group A=Patients with flat fitting (R1>R2), Group B=Patients with steep fitting (R1<R2). R 1: Base curve radius (BCR) of therapeutic contact lens (T-lens) which was randomly selected for patients who underwent LASEK. R 2: BCR of T-lens which were converted from post operative diopters of patients who underwent LASEK by using a diopter conversion table.

Mentions: The subject group had a total of 47 patients (92 eyes); group A had 53 eyes and group B had 39 eyes. In group A, the healing period after LASEK surgery was on average 5.8±1.7 days; in group B, the corneal epithelial healing period after LASEK surgery was on average 6.7±2.1 days, a statistically significant difference (p=0.04, independent T-test, Figure 1).


Effect of base curve radius of therapeutic lenses on epithelial healing after laser-assisted subepithelial keratectomy.

Seo JH, Wee WR, Lee JH, Kim MK - Korean J Ophthalmol (2007)

Estimated mean and standard errors for number of days wearing therapeutic contract lens in Group A and Group B. Group A showed a shorter epithelial healing time than Group B (5.8±1.7 days vs. 6.7±2.1 days, p=0.04). This implies selecting a flat fitting BCR lens is more beneficial on wound healing than a steep fitting lens after LASEK. Group A=Patients with flat fitting (R1>R2), Group B=Patients with steep fitting (R1<R2). R 1: Base curve radius (BCR) of therapeutic contact lens (T-lens) which was randomly selected for patients who underwent LASEK. R 2: BCR of T-lens which were converted from post operative diopters of patients who underwent LASEK by using a diopter conversion table.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2629707&req=5

Figure 1: Estimated mean and standard errors for number of days wearing therapeutic contract lens in Group A and Group B. Group A showed a shorter epithelial healing time than Group B (5.8±1.7 days vs. 6.7±2.1 days, p=0.04). This implies selecting a flat fitting BCR lens is more beneficial on wound healing than a steep fitting lens after LASEK. Group A=Patients with flat fitting (R1>R2), Group B=Patients with steep fitting (R1<R2). R 1: Base curve radius (BCR) of therapeutic contact lens (T-lens) which was randomly selected for patients who underwent LASEK. R 2: BCR of T-lens which were converted from post operative diopters of patients who underwent LASEK by using a diopter conversion table.
Mentions: The subject group had a total of 47 patients (92 eyes); group A had 53 eyes and group B had 39 eyes. In group A, the healing period after LASEK surgery was on average 5.8±1.7 days; in group B, the corneal epithelial healing period after LASEK surgery was on average 6.7±2.1 days, a statistically significant difference (p=0.04, independent T-test, Figure 1).

Bottom Line: Patient's age, epithelial healing time, ablation amount, and BCR were compared between these two groups.Group A (R1>R2) had 53 eyes, and Group B (R1<R2) had 39 eyes.Group A showed a shorter epithelial healing time than Group B (5.8+/-1.7 days vs. 6.7+/-2.1 days, p=0.04).

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea.

ABSTRACT

Purpose: To determine the effect of the base curve radius (BCR) of therapeutic soft contact lens (T-lens) on epithelial healing after laser-assisted subepithelial keratectomy (LASEK).

Methods: Ninety-two eyes in 47 patients with myopia were prospectively evaluated after LASEK. All the patients wore T-lenses with the BCR (R1) randomly chosen after LASEK. The T-lenses were removed after complete healing of the epithelial wounds. We calculated an estimated BCR (R2) from postoperative topography using a diopter conversion table. The patients were divided into two groups according to the differences between the BCR (R1) and the estimated BCR (R2). The flat fitting group was R1 > R2 (Group A), and the steep fitting group was R1

Results: Group A (R1>R2) had 53 eyes, and Group B (R1

Conclusions: The flat fitting group showed a shorter epithelial healing time than the steep fitting group after LASEK.

Show MeSH
Related in: MedlinePlus