Scar Treatment — Laser and LED

Scars form when the wound healing process produces collagen in a disorganised pattern, resulting in tissue that differs from normal skin in texture, colour, elevation and elasticity. Different scar types require different approaches: atrophic scars (common in acne) are depressed below the surrounding skin surface due to collagen and tissue loss; hypertrophic scars are raised but confined to the original wound margin; keloids extend beyond the wound…

At AE Derm MUDr. Helena Závodská addresses scars using the fractional Er:YAG mode of the FOTONA 4D system. The fractional approach creates thousands of microscopic ablation channels through the epidermis and into the papillary and upper reticular dermis of the scar tissue; the heat and microtrauma at each channel boundary initiates a fresh wound-healing cascade, generating new, more normally organised collagen within the scar. The surrounding intact…

For fresh scars — within the first three to six months of formation, when the tissue is still remodelling — even conservative fractional treatment can significantly redirect healing. For established mature scars, typically several sessions spaced four to eight weeks apart are required to achieve meaningful textural and colour improvement; complete resolution is rarely achievable but substantial improvement is typical with consistent treatment.