The Stratus OCT utilizes a normal population database for RNFL measurements, developed by the manufacturer and packaged within the software. Numerous studies have confirmed that RNFL measurement is sensitive in detecting glaucoma, and the extent of RNFL damage correlates with the severity of functional deficits in the visual field.6–8 Some patients can lose up to 40% of their RNFL before any visual field defect is detected. An important approach in the detection of early structural change in glaucoma is based on assessment of the retinal nerve fiber layer (RNFL) using the optical coherence tomography (OCT). Myopia is a common ocular abnormality worldwide with a prevalence in adults of 22.7% and 26.2%, reported in the Baltimore Eye Survey and theBeaver Dam Study, respectively.1–2 Among adult Chinese in Singapore, it was estimated that 38.7% of adult Chinese were myopic and 9.1% were high myopes.3 From the clinical and socioeconomic standpoints, these are major concerns especially among East Asian countries where there are projections for increasing prevalence rate and severity of the condition.4 One of the potentially blinding ocular diseases found to have a strong relationship with myopia is glaucoma5 which is characterized by progressive degeneration of retinal ganglion cells, one of the common ocular diseases seen among Filipinos.
