to evaluate long term safety and efficacy of the photo refractive keratectomy (prk) in myopic eyes with thin cornea, this study has been designed. in this retrospective case series study, we included 74 eyes of 38 myopic patients with preoperative central corneal thickness (cct) less than 550 micrometer who underwent for prk surgery prior to 2010 and had 4 years of mean follow up postoperativel...

purpose: to assess the agreement of ultrasonic pachymetry, the galilei dual scheimpflug analyzer and orbscan ii in measuring central corneal thickness (cct) in normal and keratoconic eyes. methods: in this prospective comparative study, cct was measured in 88 refractive surgery candidates and 76 (39 right) eyes of 45 keratoconic patients using ultrasonic pachymetry, galilei and orbscanii. readi...

We reviewed a series of recently published studies in which the anterior chamber depth (ACD) distance was measured by Pentacam or Pentacam HR and compared with other measuring devices. Since some published studies reach contradictory conclusions regarding device interchangeability and include di erent ocular conditions, for instance, phakic eyes, pseudophakic eyes, cataractous eye, and so on, t...

The patient presented herein is a 52-year-old woman suffering from primary open angle glaucoma (POAG) in both eyes. She has no history of systemic disorders and is not on any systemic medications. She underwent laser in situ keratomileusis (LASIK) 9 years ago for refractive error of -5.50-3.00×180 in both eyes, and was diagnosed with glaucoma 7 years afterwards. Her ocular examination when I sa...