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LETTER TO THE EDITOR
Year : 2020  |  Volume : 68  |  Issue : 1  |  Page : 262

Comments on: Using Brückner's test for gross keratometry screening


Department of Pediatric Ophthalmology, Jyotirmay Eye Clinic for Children <16 Years and Adult Squint and Ocular Motility Laboratory, Thane; Department of Pediatric Ophthalmology, Mahatme Eye Hospital, Nagpur, Maharashtra, India

Date of Web Publication19-Dec-2019

Correspondence Address:
Dr. Mihir Kothari
Jyotirmay Eye Clinic for Children and Adult Squint, Ocular Motility Lab and Pediatric Low Vision Center, 104, 105 Kaalika Tower, Kolbad Road, Khopat, Thane West - 400 601, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_1240_19

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How to cite this article:
Kothari M, Jahan S, Solanki M. Comments on: Using Brückner's test for gross keratometry screening. Indian J Ophthalmol 2020;68:262

How to cite this URL:
Kothari M, Jahan S, Solanki M. Comments on: Using Brückner's test for gross keratometry screening. Indian J Ophthalmol [serial online] 2020 [cited 2020 Jan 18];68:262. Available from: http://www.ijo.in/text.asp?2020/68/1/262/273187



Dear Editor,

We were impressed by the ophthalmic image [1] published in the past issue of Indian Journal of Ophthalmology for the unique use of indirect ophthalmoscope for performing Brückner test.

The Brückner test is classically performed using a direct ophthalmoscope in an undilated pupil in a dark or semi-darkened room to assess amblyogenic factors in young children. Nevertheless, it can be performed with any bright coaxial light source that is capable of obtaining pupillary trans-illumination reflex.

We found indirect ophthalmoscope could elicit the reflex only when the pupil was well dilated. In comparison with direct ophthalmoscope [Figure 1], the transpupillary reflex obtained with indirect ophthalmoscope were dull, the pattern of the crescent was inverted, laterally reversed, and large magnitude of ametropia was needed (in excess of 5D) to create abnormal crescent. Hence, ophthalmologists must continue to use a direct ophthalmoscope to perform the Brückner test. Nonetheless, if an abnormal transillumination pattern is incidentally detected using the indirect ophthalmoscope, a prompt referral is needed for detailed refractive evaluation for apparently large ametropia.
Figure 1: Comparison of Brückner test using a direct ophthalmoscope (1.1–1.4) and indirect ophthalmoscope (1.A–1.D) in a child with right eye -1.5d myopia. Note easily appreciable change in the pattern of transpupillary illumination with change in the refractive status of the eye when using direct ophthalmoscope in the upper panel in comparison with poorly appreciable effect of changes in the transpupillary illumination with refractive differences when an indirect ophthalmoscope was used to perform the Brückner test

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Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Bhayana AA. Using Brückner's test for gross keratometry screening. Indian J Ophthalmol 2019;67:1175.  Back to cited text no. 1
    


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