Sir, I read with interest the literature review published in this Journal1 about the importance of 3-D vision in dentistry, and the benefits of two good eyes as our profession develops ever more detailed operative techniques. The authors suggest that stereoacuity should be tested and regularly monitored in all dental students. This would put me at the bottom of the class as I have lived with a 'lazy' left eye throughout my career; it is no use at all in dentistry, reading, or anything much else for that matter.

I cannot say this lazy eye has held me back and have never felt disadvantaged in adopting to new techniques. I am now in my fourth decade of dental practice and I like to think I have made a reasonable success of my career, so anyone with similar issues reading the article should take some comfort from this.

My sporting skills, however, especially those involving a moving ball, have always been dismal, and my confident swipes at high velocity tennis, cricket and squash balls give opponents great hope, as the ball sails sweetly past my racquet/bat with monotonous regularity.

Can I suggest golf to those similarly affected, as the ball remains stationary before it is hit?