Outcomes of photorefractive keratectomy in patients with posterior corneal steepening.

Purpose: To assess post-operative outcomes following photorefractive keratectomy (PRK) in patients with posterior corneal steepening compared to an age, gender and refraction matched control group.

Methods: A retrospective matched case-control study that analysed outcomes of PRK in eyes with posterior corneal steepening as shown by the Sirius tomography (Sirius, CSO, Italy), versus normal eyes. Both groups were age, gender and refraction matched.

Predicting factors of ocular hypertension following keratoplasty: Indications versus the procedure.

Purpose: To assess the incidence of ocular hypertension (OHTN) following penetrating keratoplasty (PKP) versus deep anterior lamellar keratoplasty (DALK) corneal transplant surgeries, and to assess the impact of indication for transplantation versus surgery type on OHTN development.

Methods: A retrospective study of 76 eyes of 76 patients who underwent PKP or DALK between 1 January 2009 and 1 September 2014. Data included: preoperative intraocular pressure (IOP), indication and type of surgery, post-surgical IOP at 1 to 5, 14 to 21 days, 3, 6 months, 1 year and at the last follow up.