Tired Eyes




Factors responsible for tired eyes (asthenopia) are not confined to ocular factors, but include other various factors (systemic disease, mental condition, environment, etc.). The combination of two or more of these factors is often responsible for eye strain.1


The most common symptom reported was eye strain, followed by ocular pain and photophobia. Reports on general symptoms, such as stiffness of shoulders and headaches, were more frequent than expected. The symptoms reported were similar in nature and severity between the two groups.2


An ophthalmologist can diagnose asthenopia by conducting either of the following tests1:

  • Repeated measurement of tensioning time and relax time for accommodation with an AccommodopolyrecorderHS 9D
  • Measurement of accommodation with an Infrared Optometer AS-157 (Photo-Electric Accomodo-Gram; PEAG)
  • Measurement of micro-accommodation with an Infrared Optometer AS-157
  • Continuous repeated measurement of accommodative near point with an Ishihara Near Point Meter


The condition should not cause you significant problems. However, if the symptoms persist, it can disturb you everyday and worsen the quality of life. A therapy with eye drops is a simple way to get better. Visit an ophthalmologist for the best choice of treatment for you.

Santen product approved and available in the Philippines

Sancoba 0.02% Ophthalmic Solution


1. Yamaji et al., 1978. Effects of Vitamin B12 Ophthalmic Solution on Eye Strain - Double-Blind Evaluation of Efficacy. Rinsho Ganka, 32(6), 1013-1025.
2. Yamaji et al., 1976. A Double Blind Study on the Effectiveness of Vitamin B12 Ophthalmic Solution on Asthenopia. Ganka Rinsho Iha, 70, 36-42.