Nearly one out of 10 people between 21 to 30 years old have astigmatism more than 200 degrees (2.00D), according to the latest findings on a clinical population by optometry experts at PolyU. The prevalence of refractive astigmatism (1.00D) is even higher for people aged above 60 years old, standing at over 40 per cent.

The research team led by Dr Kee Chea-su, Assistant Professor of PolyU's School of Optometry, conducted an analysis on 2,759 clinical cases.

To avoid the onset and progression of astigmatism, Dr Kee said good habit, posture and working ergonomics when reading are the keys. Outdoor activities are also recommended for relaxing the eyes. He also encouraged the general public to have comprehensive eye examination regularly for early detection and treatment of any visual problems.

In case one has developed astigmatism, it is crucial for them to follow the optometrists' suggestions by wearing suitable glasses. However, spectacle frame in circular shape is not recommended. They may also consider wearing contact lens or receiving orthokeratology for vision correction. Dr Kee reminded that when selecting among different treatment options for astigmatism, one should also take into account the possible cause of astigmatism, the visual acuity needs, and astigmatic progression. Details>>