Clinical Ophthalmology (Oct 2020)
A Review on Different Tonometers for Intraocular Pressure Measurement After Photorefractive Keratectomy or Small Incision Lenticule Extraction
Abstract
Shing Chuen Chow, Barry Yat Ming Yeung CAP Medical Center, Hong KongCorrespondence: Barry Yat Ming YeungCAP Medical Center, Rm 501-502, Hang Shing Building, 363 Nathan Road, Hong KongTel +852 23329830Fax +852 23326896Email [email protected]: This paper aims to review different tonometers for intraocular pressure measurement in eyes after photorefractive keratectomy or small incision lenticule extraction. An Entrez Pubmed search was performed on July 19th, 2020. There were 32 eligible articles investigated in the use of tonometers or biomechanical properties of cornea in post photorefractive keratectomy eyes and 11 articles investigated in post small incision lenticule extraction eyes. Corvis ST and dynamic contour tonometry were found to be accurate for intraocular pressure measurement in post photorefractive keratectomy eyes. For post small incision lenticule extraction eyes, Corvis ST was found to be more accurate than other tonometers. Other tonometers such as Goldmann applanation tonometer, noncontact tonometry, Tonopen, ocular response analyzer can also be used in post photorefractive keratectomy or small incision lenticule extraction eyes in clinical practice; however, it is important for ophthalmologists to take note of the chances of discrepancies.Keywords: tonometry, tonometer, glaucoma, photorefractive keratectomy, small incision lenticule extraction
