Adapting to loss of an eye

Issue: BCMJ, vol. 53, No. 10, December 2011, Page 527 WorkSafeBC

More than 90% of individuals who suddenly lose the sight in one eye do not receive in­formation from their physician regard­ing the functional implications of their new monocular status. Nor do they, or their family, receive community-based support or advice with regard to home and workplace modifications, alternative work programs, or career counseling. Despite this, the vast majority of newly monocular individuals usually learn to compensate for their disability and resume their previous work and daily activities.

The recovery period (adaptation) from sudden loss of one eye is typical­ly 1 year or less. Those who experience sudden loss of vision in one eye re­quire more time to adapt to their monocular status than those who lose their vision gradually. If peripheral vision in the affected eye is preserved, adaptation time is usually much shorter.

Monocular depth perception
Monocular individuals lose stereopsis, which is not the same as depth perception. Stereopsis is due to the parallax phenomenon when an object is viewed from slightly different angles by the right and left eye. Superimposition of the disparate images in the occipital cortex produces a three-dimensional image. Stereopsis is the only binocular clue in depth perception and is effective at only a range of 6 m (20 ft.) or less.

The many other clues that contri­bute to depth perception are all mono­cular. They include the apparent size of objects, superimposition of near objects over more distant ones, loss of contrast and color of distant ob­jects, blurring of distant objects, linear perspective—such as convergent rail tracks—and other light and shape effects.

Stereotactic clues include the muscular effort associated with convergence and accommodation.

Multiple challenges for monocular individuals
Monocular individuals frequently have psychological problems, notably loss of self-esteem, as well as fear and anxiety—particularly with regard to the health of the remaining good eye. Psychosocial problems such as diminished skills, as well as difficulty making eye contact, grasping objects, pouring drinks, and shaking hands are challenging for the individual who has recently lost sight in one eye. Occasionally, these problems may result in the individual withdrawing from social situations.

Physical problems such as eyestrain, fatigue, glare, photosensitivity, and neck pain from frequent turning of the head may also occur.
And then there are the vocational problems that arise with the use of power tools, measuring, and cutting. Career opportunities may be lost for monocular individuals where binocular status is required. 

The monocular individual may require time to adapt to the workplace situation and to gain a degree of self-confidence in this environment. During this period, the worker should avoid hazardous situations, such as working at heights or with machinery. The worker must have adequate eye protection at all times.

A first-hand perspective
The book A Singular View (5th ed., 1994 by Frank B. Brady, author and publisher), written by a newly monocular individual, provides useful insight on monocular status, as well as suggestions for ways to compensate for the condition.
—Malcolm McLean, MD
Ophthalmology Consultant
WorkSafeBC Clinical Services Department

This article is the opinion of WorkSafeBC and has not been peer reviewed by the BCMJ Editorial Board.

Malcolm McLean, MD,. Adapting to loss of an eye. BCMJ, Vol. 53, No. 10, December, 2011, Page(s) 527 - WorkSafeBC.

Above is the information needed to cite this article in your paper or presentation. The International Committee of Medical Journal Editors (ICMJE) recommends the following citation style, which is the now nearly universally accepted citation style for scientific papers:
Halpern SD, Ubel PA, Caplan AL, Marion DW, Palmer AM, Schiding JK, et al. Solid-organ transplantation in HIV-infected patients. N Engl J Med. 2002;347:284-7.

About the ICMJE and citation styles

The ICMJE is small group of editors of general medical journals who first met informally in Vancouver, British Columbia, in 1978 to establish guidelines for the format of manuscripts submitted to their journals. The group became known as the Vancouver Group. Its requirements for manuscripts, including formats for bibliographic references developed by the U.S. National Library of Medicine (NLM), were first published in 1979. The Vancouver Group expanded and evolved into the International Committee of Medical Journal Editors (ICMJE), which meets annually. The ICMJE created the Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly Work in Medical Journals to help authors and editors create and distribute accurate, clear, easily accessible reports of biomedical studies.

An alternate version of ICMJE style is to additionally list the month an issue number, but since most journals use continuous pagination, the shorter form provides sufficient information to locate the reference. The NLM now lists all authors.

BCMJ standard citation style is a slight modification of the ICMJE/NLM style, as follows:

  • Only the first three authors are listed, followed by "et al."
  • There is no period after the journal name.
  • Page numbers are not abbreviated.

For more information on the ICMJE Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly Work in Medical Journals, visit

BCMJ Guidelines for Authors

Helen Bialecki says: reply

I lost an eye about 40 years ago, are there studies on how the loss of an eye effects the mechanics of the movement of the body. what other studies have been done on this subject matter, that may interest me.
I look forward to receiving some information

Peter Wallis says: reply

I lost sight in my left eye due to giant cell arteritus about 3 years ago. I am currently 80 years old. part from the obvious loss of perception of depth I experience dizziness when moving around in confined spaces. There is still a very small amount of vision in my left eye, maybe 3 - 5% so without an eye patch it is as if I am looking through a lace curtain with colour patches.
Just a note to add to the sum of human knowledge.
Regards, Peter Wallis

Mike Vaillancourt says: reply

I lost my central field of vision in my left eye due to an arterial blockage 5.5 years ago. I had very little support after to adapt to this. Being a licensed tradesman it was devastating on my abilities.....but struggled on. Still adapting.....

Joy Clark says: reply

I lost an eye 115 days ago and I am heart broken

Leave a Reply