Corneal Flap
Corneal Flap - Related Videos
08:18
Engineered Vascularized Muscle Flap
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Cited by 6 •
2016
To date, thick tissue defects are typically reconstructed by applying autologous tissue flaps or engineered tissues. In this protocol, we present a new method for engineering vascularized tissue flap bearing an autologous pedicle, to serve as a substitute to autologous flaps.
07:57
An Experimental Human DIEP Flap Model to Investigate Preservation Strategies for Vascularized Composite Allografts and Free Flaps
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2025
This protocol describes the surgical technique for harvesting a human perforator flap model based on the deep inferior epigastric artery pedicle, intended for experimental research.
10:10
A Model of Free Tissue Transfer: The Rat Epigastric Free Flap
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Cited by 23 •
2017
This paper describes the steps required to raise a fasciocutaneous epigastric free flap and transfer it to the neck in the rat.
08:37
Corneal Donor Tissue Preparation for Endothelial Keratoplasty
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Cited by 31 •
2012
Endothelial corneal transplantation is a surgical technique for treatment of posterior corneal diseases. Mechanical microkeratome dissection to prepare tissue results in thinner, more symmetric grafts with less endothelial cell loss and improved outcomes. Dissections can be performed at the eye bank prior to corneal transplantation surgery.
09:18
Clark Y-14 Wing Performance: Deployment of High-lift Devices (Flaps and Slats)
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2023
Source: David Guo, College of Engineering, Technology, and Aeronautics (CETA), Southern New Hampshire University (SNHU), Manchester, New Hampshire A wing is the major lift-generating apparatus in an airplane. Wing performance can be further enhanced by deploying high-lift devices, such as flaps (at the trailing edge) and slats (at the leading edge) during takeoff or landing. In this experiment, a wind tunnel is utilized to generate certain airspeeds, and a Clark Y-14 wing with a flap and slat...
FAQs
The hinge maintains the flap’s attachment to the surrounding cornea while the surgeon accesses the stromal tissue beneath it. This allows the flap to be lifted for excimer laser treatment and then repositioned over the treated area. Preserving that attachment is therefore central to the surgical sequence and supports flap management without requiring sutures.
Both a microkeratome and a femtosecond laser can separate corneal tissue along a precise plane to create the flap. The provided context identifies them as alternative flap-creation tools but does not specify differences in their clinical performance or healing effects. Their shared purpose is to provide controlled access to the underlying stromal tissue during refractive surgery.
Reshaping the exposed stroma changes the curvature of the cornea, which changes the eye’s focusing power. During LASIK, an excimer laser performs this reshaping after the flap is lifted. The intended result is correction of refractive errors, including myopia, hyperopia, and astigmatism, by modifying the corneal surface involved in focusing.
Flap creation must be considered alongside access to the stromal tissue, the planned corneal reshaping, flap repositioning, and subsequent healing. These factors make flap management relevant to surgical planning and patient safety. Evaluating the flap process and healing also contributes to assessing the outcome of refractive eye surgery.
The sequence begins with separating a thin, hinged layer along a precise corneal plane using a microkeratome or femtosecond laser. The surgeon lifts the flap, reshapes the exposed stromal tissue with an excimer laser, and then repositions the flap. This ordered workflow provides access for treatment while restoring the flap’s position afterward.
Flap creation uses either a microkeratome or a femtosecond laser, while an excimer laser reshapes the exposed stromal tissue. These devices serve different stages of the operation: the first two create access, and the excimer laser changes corneal curvature. Together, they support the surgical workflow described for LASIK and related refractive treatment.
The refractive treatment associated with corneal flap surgery may correct myopia, hyperopia, and astigmatism. It does so by changing corneal curvature and therefore the eye’s focusing power. The flap provides access for this reshaping step, making its creation and later repositioning relevant to procedures intended to improve refractive vision.
Healing is important because the flap is created, lifted, and repositioned as part of the refractive procedure. Understanding this healing process helps clinicians plan surgery, address patient-safety considerations, and evaluate postoperative outcomes. The topic therefore extends beyond the flap-making step itself to include how the cornea recovers after treatment.