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Song and Koh: A Statistical Observation of Corneal Laceration and Factors Influencing Visual Prognosis
Original Article
Journal of the Korean Ophthalmological Society

Journal of the Korean Ophthalmological Society 2012; 53(11): 1564-1570.

Published online: 16 November 2012

DOI: https://doi.org/10.3341/jkos.2012.53.11.1564

A Statistical Observation of Corneal Laceration and Factors Influencing Visual Prognosis

Nang Hee Song, MD, Jae Woong Koh, MD, PhD

Department of Ophthalmology, Chosun University School of Medicine, Gwangju, Korea.

Address reprint requests to Jae Woong Koh, MD, PhD. Department of Ophthalmology, Chosun University Hospital, #365 Pilmun-daero, Dong-gu, Gwangju 501-717, Korea. Tel: 82-62-220-3190, Fax: 82-62-225-9839, clearcornea@naver.com

Received 20 April 2012       Accepted 27 September 2012

Copyright © 2012 The Korean Ophthalmological Society

Abstract

Purpose

To investigate the regional characteristics and the factors that influence final visual acuity in corneal laceration and use the results for prevention and treatment of corneal laceration.

Methods

Sixty-eight patients who visited the Chosun University Medical Center from January 1, 2006 to December 31, 2010 were retrospectively surveyed. The incidence of corneal laceration, sex, age, monthly and seasonal distribution, cause, site and length of corneal laceration, secondary operation, complications, and ocular trauma score were reviewed statistically. In additional, the factors influencing visual prognosis were investigated.

Results

The incidence was more common in males (94.1%) and in the 6th-decade of life (29.4%). The corneal laceration was more common in the summer (38.2%) and in September (26.5%) and the most common cause was stone (39.7%) and metal (35.3%), respectively. The corneal laceration tended to occur at the corneal center. The most common first operation was primary closure (81.9%), and the secondary operation was most often performed due to a traumatic cataract (32.1%). The factors that significantly influenced the final visual acuity were initial visual acuity, length and site of laceration, and secondary operation.

Conclusions

The present survey investigated the regional characteristics and important factors influencing final visual acuity. Results show initial visual acuity, the length and site of laceration, and the secondary operation significantly influenced final visual acuity.

Keywords: Corneal laceration, Statistical review, Visual acuity

Figures and Tables

Figure 1
Age and sex distribution. The incidence was more common in male and in the 6th decade.
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Figure 2
Monthly, seasonal distribution of ocular injury patients.
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Figure 3
The ratio in different site of cornea. The corneal laceration tended to occur at the corneal center.
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Figure 4
Final visual acuity and ocular trauma score. HM = hand motion; LP = light perception; NLP = no light perception; OTS = ocular trauma score.
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Table 1
Causes of ocular injury
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Table 2
Associated injuries of eye
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Table 3
Factors predicting visual outcome in 68 eyes with corneal laceration
jkos-53-1564-i003

NLP = no light perception; LP = light perception; HM = hand motion; S.T. = superotemporal; S.N. = superonasal; I.T. = inferotemporal; I.N. = inferonasal.

*A simplified categorical system for standardized assessment and visual prognosis in ocular injuries. It was calculated by assigning the following variables: initial visual acuity, globe rupture, endophthalmitis, perforating injury, retinal detachment, and a relative afferent pupillary defect.

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