The document discusses a study that evaluated the use of transpalpebral scleral tonometry for measuring intraocular pressure (IOP) in patients with refractive errors both before and after keratophotorefractive surgery. The study found that transpalpebral tonometry provided IOP measurements that more closely approximated modified applanation tonometry readings which accounted for corneal thickness, as compared to standard applanation tonometry. Transpalpebral tonometry also showed smaller differences in pre-operative and post-operative IOP measurements compared to standard applanation tonometry, demonstrating its advantage in avoiding the effects of corneal changes from refractive surgery on IOP readings.