Indian Journal of Clinical and Experimental Ophthalmology

Print ISSN: 2395-1443

Online ISSN: 2395-1451

CODEN : IJCEKF

Indian Journal of Clinical and Experimental Ophthalmology (IJCEO) is open access, a peer-reviewed medical journal, published quarterly, online, and in print, by the Innovative Education and Scientific Research Foundation (IESRF) since 2015. To fulfil our aim of rapid dissemination of knowledge, we publish articles ‘Ahead of Print’ on acceptance. In addition, the journal allows free access (Open Access) to its content, which is likely to attract more readers and citations of articles published in IJCEO. Manuscripts must be prepared in more...

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Get Permission Sao and Vallabha K: A profile of ocular trauma in patients attending tertiary care center, North Karnataka


Introduction

Ocular trauma is a preventable public health issue that is the leading cause of blindness in children, ophthalmic morbidity, and monocular blindness worldwide.1 One in every twenty patients who visits an ophthalmologist has an eye injury.2

Ocular injury etiologies vary across nations, regions of the world, and demographic or socio-economic strata. Ocular injuries vary significantly in type and complexity. Despite causing structural and functional visual loss, ocular trauma has profound social, economic, occupational, and medico-legal consequences. Early detection and intervention are the key to trauma management and prevention of further complications.3, 4, 5 Remote trauma and difficulty acquiring an accurate history might make epidemiological investigations challenging. Prevention strategies for ocular trauma necessitate an understanding of the cause or mechanism of injury, which may allow for better resource allocation to prevent such injuries. The crux of preserving visual function in individuals with ocular damage is accurate surgery timing and the logical use of medications and surgical methods. Whether the trauma is minor or severe, in an urban or rural setting, or involving an adult or child, the patient must be medically stabilized and the eye thoroughly assessed.6, 7

Materials and Methods

This prospective cross-sectional study was carried out in a tertiary care hospital from October 2019 To April 2021. A total of 100 cases with a history of both mechanical and non-mechanical trauma attending the casualty and outpatient departments were considered. The following parameters were analyzed: sex, age, patients' occupation, residence, financial status, time of the inflicted injury, place and way of inflicting the injury, and visual acuity on admission. In addition, the type of injury was analysed, i.e., contusion, lamellar laceration, mixed, penetrating, perforating, I.O.F.B.(intra ocular foreign body), or rupture with all resulting complications. A full history of the trauma, its nature, and its circumstances was gathered.

After explaining to the patient about the study and obtaining the patient's willful consent, a standardized proforma was completed for each patient documenting the history, clinical findings, and the investigations done. Clinical examination included Visual acuity as measured by Snellen's chart, comprehensive Slit Lamp examination, and fundus examination with an indirect ophthalmoscope were all performed. Previous treatment history, pre-existing ocular disease, and associated systemic and local findings were noted. All cases of ocular trauma, including mechanical, non-mechanical, thermal, chemical, electrical, radiational, explosive injuries and injuries affecting the globe as well as orbit and adnexa, were included. Patients who were not willing to participate in the study and foreign bodies on the ocular surface were excluded from the study. Ethical clearance from the institutional ethical committee was obtained.

Observations and Results

Of the 100 cases, 23% (n=23) of ocular trauma was in the age group 20-30 years, and the least number of cases, 2% (n=2), were seen over 70 years. The pediatric age group (16 years and younger) constituted 16% (n=16) of the cases. Ocular trauma was 83% (n=83) in males and 17% (n=17) in females. 83% (n=83) of cases were from a rural background, and 17% (n=17) were from an urban background. In 47% (n=47) of cases right eye was involved, whereas in 40% (n=40) of cases left eye was affected. In 13% (n=13) of cases, both eyes were involved. There were 38% (n=38) close globe injuries, 22% (n=22) open globe injuries, and 34% (n=34) were adnexal injuries. (Figure 1) Open and close globe injuries were further divided into three zones according to B.E.T.T. classification (Birmingham eye trauma terminology). (Figure 2) Among closed globe injuries, 20% (n=20) comprised zone 1 injuries, 2% (n=2) injuries to zone 2, and 16% (n=16) zone 3. The open-globe injury involved zone 1 in 7% (n=7) of patients (corneal tear with iris prolapse) and 9% (n=9) for zones 2 (corneoscleral tear), and 6% (n=6) zone 3 (scleral tear extending beyond equator). 54% (n=54) of Cases had ocular trauma due to road traffic accidents. There were 13% (n=13) cases of injury with a block of wood (i.e., while cutting wood for fire with an axe, a big block of wood hit the eye). (Table 1)

One case of an open-globe injury at the workplace resulted from a projectile of oxygen piston, resulting in rupture. There was no I.O.F.B., in any case. One case of open globe injury by bull gore caused zone 3 rupture injury. Another case of a ten-year-old child playing on his terrace suffered zone 2 rupture as he tripped over an iron rod protruding from the beam. (Figure 3, Figure 4) Out of 100 cases, eyelids were involved in 85% (n=85) cases, 69% (n=69) had conjunctival involvement, 25% (n=25) had corneal involvement, 33% (n=33) of cases had iris involvement, 8% (n=8) cases of traumatic cataracts, 4% (n=4) cases of lens drop in the vitreous and 3% (n=3) cases of traumatic lens subluxation.

R.A.P.D. (relative afferent pupillary defect) was present in 27% (n=27) of cases of ocular trauma. The presence of R.A.P.D. directly correlates with the severity of trauma and final visual outcome.

A myriad of posterior segment findings was seen in the present study. 59% (n=59) of cases had posterior segment involvement, of which 22% (n=22) had berlins oedema, 1% (n=1) had a choroidal rupture, 4% (n=4) had lens drop in vitreous, 4% (n=4) had posterior vitreous detachment, 4% (n=4) had a traumatic macular hole, 2% (n=2) had traumatic optic neuropathy, and 4% (n=4) had a retinal detachment.

In this study, 43% (n=43) cases had an OTS of 1, which is related with a 90% projected outcome of NPL (no perception of light) and P.L. (perception of light) vision (i.e., 73% for no light perception plus 17% for perception of light) and just a 3% probability of vision better than 6/60. (Table 2)

Management of these diverse cases varied profoundly. Most cases 42% (n=42) were managed conservatively with medical treatment, lid tear suturing was done for 25% (n=25) cases, corneoscleral tear suturing was done for 20% (n=20) cases and 3% (n=3) underwent enucleation. Corneal tear suturing with iris abscission, vitrectomy, lens extraction, and S.F.I.O.L. (scleral fixated intraocular lens) implantation was done for 6% (n=6) of cases.

Figure 1

Type of injury

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Figure 2

Betts classification (Birmingham eye trauma terminology system)

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Table 1

Objects causing trauma

Objects

Frequency

Percent

Assault

2

2.0

Bull horn

1

1.0

Caustic lime

2

2.0

Sodium

1

1.0

Cricket ball

4

4.0

Dog bite

1

1.0

Hand

1

1.0

Hot water

2

2.0

Kerosene

1

1.0

Piston of oxygen cylinder

1

1.0

Road traffic accident

54

54.0

ROD

4

4.0

Self fall

5

5.0

Stick

6

6

Stone

1

1.0

Wood

13

13.0

Lentil stick

1

1.0

Total

100

100.0

Figure 3

Case No 98: Preoperative zone 3 rupture

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Figure 4

Case No 98: Posterative: corneo-scleral suturing

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Table 2

OTS score and likelihood of visual aquity at 6 months

Sum of raw points

OTS Category

No. of cases (In Present Study)

No perception of light

Light perception/ hand movements+

1/200-19/200

20/200-20/50

>20/40

0−44

1

43

74%

15%

7%

3%

1%

45−65

2

20

27%

26%

18%

15%

15%

66−80

3

11

2%

11%

15%

31%

41%

81−91

4

7

1%

2%

3%

22%

73%

92−100

5

17

0%

1%

1%

5%

94%

Figure 5

Trend of ocular trauma through the study period

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Discussion

In this study, most ocular traumas occurred between 20 and 30 years because people in their second decade of life are more active and thus more vulnerable to ocular trauma. Males 83% (n=83) were more likely to sustain traumatic injuries than females due to more males involved in driving, industrial and agricultural occupations. 56% of cases presented to casualty within six hours of injury. Only 9% of cases presented after 24 hours. Patients presenting early and promptly in this region may signify better awareness of ocular trauma in the population as our hospital is the primary referral center.

Figure 5 shows the trend of ocular trauma throughout the study period, which is from November 2019 till April 2021. There is a decrease in the total number of cases in February 2020, corresponding with the first wave of COVID-19. A similar decrease in ocular trauma is seen in February 2021, consistent with the second wave of COVID -19.

Like other studies, close globe injuries (38%) were more common than open globe (22%) injuries.8, 9, 10, 11, 12 In our study, the cornea was affected in 25% of patients. In a study by Alem et al., 39.33% of patients had a corneal tear. According to the JUDO study, the cornea was the most affected part of the eye (63.2%), which was also confirmed in Menelik II Hospital studies.13, 14, 15, 16

8% (n=8) of patients in our study showed early signs of traumatic cataracts. They were treated with cataract surgery and intraocular lens implantation whenever possible. Three patients underwent lens extraction with anterior vitrectomy for lens dislocation into the anterior chamber. Four patients with lens drop in the vitreous underwent lens extraction and scleral fixated intraocular lens implantation.

According to a blunt trauma study, hyphema is a common complication of blunt eye trauma in approximately 50% of patients.17 In our study, 19% (n=19) patients had hyphema, with five patients having total hyphema. Bed rest, pressure bandage, topical steroids, cycloplegics, and antiglaucoma therapy helped the hyphema resolve.

14% (n=14) of patients had a vitreous haemorrhage in our study, which was detected on a B-scan and treated conservatively. Nontraumatic causes account for most of the vitreous haemorrhage (diabetic retinopathy, sickle cell disease, posterior vitreous detachment, retinal vein occlusion, leukaemia). Nevertheless, trauma accounts for 12–31% and is the most common cause of vitreous haemorrhage in younger patients.14

Berlin's oedema, also known as "Commotio retina," is best described as a transient, well-defined greyish-white opacification of the retina following blunt ocular trauma. We observed twenty-two cases of commotio retinae that were treated conservatively. This injury occurs in 9% to 14% of blowout fractures, according to studies.18

Conclusion

Ocular trauma had male predilection and was common in young adults. The most common cause of eye injuries was automobile accidents. This necessitates the implementation of improved road safety measures in this region. Appropriate eye-protective devices like safety goggles, face shields, helmets, and glasses with special filters to protect from optical radiation must be worn. The need to wear protective headgear and eyewear is critical and should not be overlooked. In mechanical injury, close globe injuries included 18% (n=18) contusion and 20% (n=20) lamellar laceration. 16% (n=16) were penetrating injuries, 6% (n=6) were rupture, and 34% (n=34) were adnexal injuries in open globe injury. There were no cases of I.O.F.B. in the present study. Majority of patients presented within 6 hours of trauma to our centre. The most commonly affected structures were the eyelid and adnexa in this study. There was a significant number of berlin's oedema in this study. B.E.T.T. classification of ocular trauma at the time of presentation helps to categorize ocular injuries. Visual prognosis can be effectively explained to the patient with regular use of ocular trauma score.

Source of Funding

None.

Conflicts of Interest

The authors declare no conflicts of interest.

References

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Article type

Original Article


Article page

325-329


Authors Details

Piyushi Sao*, Vallabha K


Article History

Received : 07-03-2022

Accepted : 20-06-2022


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