Advantages:-
Inexpensive
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Requires little surgical skill
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Requires no sophisticated equipment, such as lasers
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Causes no permanent corneal scarring and can be used to treat visual axis
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Possibly removes more abnormal basement membrane than debridement alone
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Low recurrence rate of erosion after treatment
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Re-treatments are simple
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No chance of corneal perforation
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Causes no significant refractive shift
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Removes superficial corneal opacities, if any present
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Disadvantages:-
Eye is often painful while epithelial defect is present
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Chance of persistent epithelial defect (eg, in diabetic and neurotrophic corneas)
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