J Korean Ophthalmol Soc > Volume 58(2); 2017 > Article
Journal of the Korean Ophthalmological Society 2017;58(2):185-191.
DOI: https://doi.org/10.3341/jkos.2017.58.2.185    Published online February 15, 2017.
Positional Intraocular Pressure between Phakic and Pseudophakic Eyes after Cataract Surgery in a Single Eye.
Ko Un Shin, Jae Yeun Lee, Yu Sam Won, Joon Mo Kim
Department of Ophthalmology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea. kjoonmo1@gmail.com
수정체유화술 및 후방인공수정체삽입술 후 유수정체안과 위수정체안의 자세에 따른 안압비교
신고운⋅이재연⋅원유삼⋅김준모
성균관대학교 의과대학 강북삼성병원 안과학교실
Correspondence:  Joon Mo Kim,
Email: kjoonmo1@gmail.com
Received: 1 September 2016   • Revised: 7 December 2016   • Accepted: 17 January 2017
Abstract
PURPOSE
In the present study, the dependence of intraocular pressure (IOP) on body position was compared between pseudophakic and phakic eyes after cataract surgery performed at least 3 months prior. METHODS: IOP was measured in 214 patients over 40 years of age who received cataract surgery at least 3 months prior. The present study included 104 patients who did not have any other ocular disease which could influence visual acuity or IOP. The IOP was measured in 4 different positions, sitting, supine, right decubitus, and left decubitus by a single skilled researcher using Icare tonometer. In addition, IOP was compared between the phakic and pseudophakic eyes, specifically, the dependent eye in the decubitus position. RESULTS: The comparison between the phakic and pseudophakic eyes in patients after cataract surgery in a single eye showed IOP was not different between the sitting and supine positions; however, in the decubitus position, IOP in the dependent eye was significantly higher than the non-dependent eye (p = 0.001). Additionally, regardless of lens status, IOP was significantly higher in the dependent eye than non-dependent eye. CONCLUSIONS: Both body position and lens status can affect IOP. After cataract surgery, regardless of lens status, IOP was higher in the dependent eye than non-dependent eye of patients in the decubitus position.
Key Words: Cataract surgery;Glaucoma;Intraocular pressure;Positional intraocular pressure


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