Bilateral Visual Field Defect Following Laser in Situ Keratomileusis(LASIK).
- Author:
Gil Joong YOON
1
;
Jin Hwang CHUNG
;
Tae Sung HA
Author Information
1. Department of Ophthalmology, The Chosun University Medical College.
- Publication Type:Original Article
- Keywords:
LASIK;
Vacuum ring;
Visual field defect
- MeSH:
Adult;
Atrophy;
Humans;
Intraoperative Complications;
Keratomileusis, Laser In Situ;
Male;
Microcirculation;
Optic Disk;
Scotoma;
Visual Acuity;
Visual Fields*
- From:Journal of the Korean Ophthalmological Society
2001;42(2):386-391
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
We report a 36-year-old male with the bilateral visual field defect following LASIK was observed. Preoperatively, patient had high myopia(right. -7.25 0.75x18, left. -7.5-0.5x12), normal intraocular pressure(IOP)(right/left: 16/14 mmHg), normal visual field(Humphrey 30-2 visual field)and revealed the tilted discs with symetric optic nerve head cupping(cup-to-disc ratio, 0.70), parapapillary atrophy. Bilateral LASIK keratorefractive surgery was on the same day and intraoperative complication was not noted. After the first operative visit day, examination revealed uncorreted visual acuity right 0.8 and left 0.6 but scotoma was reported. Three months later, Humphrey 30-2 visual field revealed a near-superior altitudinal defect in the right eye and nasal side visual field defect in the left eye. Best corrected visual acuity was 1.0 in the right eye, 0.8 in the left eye. Repeated visual fields over a 11-month period postoperatively showed stability of the defect, with IOP of 12 mmHg to 15 mmHg in each eye. We considered LASIK uses a microkeratome vaccum ring to make a corneal flap, transient elevation of IOP alters the microcirculation of optic nerve head and may have precipitated visual field defect.
