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Year : 1978  |  Volume : 26  |  Issue : 4  |  Page : 52

Monocular indirect ophthalmoscopy using E.N.T. head mirror


Asansol Optical, G.T. Road, Asansol, India

Correspondence Address:
Sakti Pada Chatterji
Asansol Optical, G.T. Road, Asansol 713 301
India
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Source of Support: None, Conflict of Interest: None


PMID: 437867

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How to cite this article:
Chatterji SP, Kandu S. Monocular indirect ophthalmoscopy using E.N.T. head mirror . Indian J Ophthalmol 1978;26:52

How to cite this URL:
Chatterji SP, Kandu S. Monocular indirect ophthalmoscopy using E.N.T. head mirror . Indian J Ophthalmol [serial online] 1978 [cited 2024 Mar 29];26:52. Available from: https://journals.lww.com/ijo/pages/default.aspx/text.asp?1978/26/4/52/31506

Monocular indirect ophthalmoscopy is one very important clinical examination in hospital and office practice for an ophthalmologist. A simple modification of the standard technique by using E.N.T. head mirror in place of the conventional retinoscopy concave mirror is described hereby.


  Material and methods Top


One E.N.T. head mirror with a head band, one+13 D. sph. and a source of illumination (as in retinos­copy) are the materials required. The E.N.T. head mirror is a round, slightly concave head mirror of sufficient size and a central hole of optimum size. The examiner sits in front of the patient as in retinoscopy, except that he is about half a meter away from the patient, The head mirror is put on in such a way that the central aperture is in front of his right eye. The left hand of the examiner carries the + 13 D Lens, while the free right hand can act as the indicator by mobilising the index finger or holding a pencil torch. The retinoscopy lamp is on the left of the patient and the rest of the procedure is same as in the standard technique.


  Results Top


For last five years this procedure is being used as a routine office procedure. The inver­ted findus image is clear and bright. The extent of the fundus visible increases when the sclera is depressed by the index finger of the right hand or the scleral depressor.


  Discussion Top


Although many modifications of monocular indirect ophthalmoscopy have been carried out, the present one seems quite advantageous because of the following reasons.

  1. This is a simple and economic method.
  2. The distance between the patient and the examiner is optimum; being neither too large as in the conventional technique, nor too small as in direct ophthalmoscopy.
  3. The right hand is free as in binocular indirect ophthalmoscopy. Thus it can be used for pointing scleral depression as in the binocular indirect technique.
  4. Prolonged examination of the fundus is less tiring for the examiner as his left hand can easily rest on the patient's forehead.


The modification of the conventional procedure thus described can easily be learnt by ophthalmologists and interns in the hospital and by practitioners in their office use.


  Summary Top


A modified technique of monocular indirect ophthalmoscopy by using the ENT mirror is described. Routine use of this simple, econo­mic and practical modification is recommended for hospital and office practice[1].

 
  References Top

1.
Monocular Indirect Ophthalmoscopy in Office Practice by Mc Donald, James E., 1975, American J. of Ophthal., 79/3, 516.  Back to cited text no. 1
    




 

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Material and methods
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Summary
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