Central corneal haze increased by radial keratotomy following photorefractive keratectomy.

Purpose: To report a case of central corneal haze induced by minimally invasive radial keratotomy (mini-RK) after photorefractive keratectomy (PRK) and subsequent deep lamellar keratoplasty.

Methods: We report a case (one eye of one patient) of central corneal haze that worsened after mini-RK was performed 2 years following PRK. Four years later, a second PRK was done, myopic regression was subsequently observed, and corneal haze persisted.

Separation of corneal stroma and Descemet's membrane during deep lamellar keratoplasty.

Purpose: To study the interface of the corneal stroma and Descemet's membrane and to report the histologic findings of the deep corneal stromal tissue removed during deep lamellar keratoplasty (DLKP).

Methods: The deep stromal tissues of four corneas were removed during DLKP and were examined histologically by light microscopy (LM) and transmission electron microscopy (TEM).

Results: Descemet's membrane appeared as a smooth surface under the surgical microscope during the removal of deep corneal stroma.