Introduction: Axial length is one of the most important parameter for optometry and oculoplastic surgery. This variable is very crucial in biometry for the measurement of the power intraocular lens accurately in cataract surgery. Many studies were carried out in various populations to determine axial length in emmetropic eye. However, there is only one study on axial length measurement in emmetropic eye in Bangladesh. This study aimed to determine the axial length in emmetropic eye in Bangladesh. Materials and Methods: This descriptive cross sectional analytical study was conducted among 200 emmetropic eye of Bangladeshi people who were attend with the patient, in department of Ophthalmology in Rajshahi Medical college between from july 2017 to june 2018.Data was collected through face to face interview, checking visual activity by Snellen chart and axial length of eyeball by A scan ultrasonography. Results: The mean SD age of participants was 36.5(£14.5) years. Participants are almost equal in sex distribution. The mean axial length of right and left eye was 23.07£0.69 mm and 23.02 0.66 mm respectively and significant (p< 0.001). Conclusion: Optical parametry is a non-invasive diagnostic and assessment tool. So axial length measurement is help in the actual measurement of intra ocular lens inplantation of cataract surgery and it also provide supplementary information to researcher domain in the actual measurement of intraocular lens inplantation in cararact surgery and may also provide supplementary information to researcher domain.

Axial length, Cataract, Emmetropic eye.

Eye is the most important sense organ and organ of vision in human. Usually eye is so contracted that the parallel rays coming from distant object is focused at the level of retina when accommodation is at rest’. This type of eye is known as emmetropic eye and its visual acuity is 6/6.To achieve 6/6 visual acuity, the axial length should be such that the light rays are accurately focus on retina being refracted through the cornea and lens.” Measurement of axial length is important in several clinical specialties including ophthalmology specially in oculoplastic surgery. The axial length measurement is one of the main component for calculating the accuracy of intraocular lens power. Axial length is an important biometric factor that affecting refractive status. The axial length is the distance between anterior surfaces of cornea to fovea or retinal Bruch’s membrane.** There is an only one study on axial length measurement in emmetropic eye in Bangladesh’. Other studies in different countries, it was observed that axial length varies in different population. So this study may help in studying orbito-cranial growth patterns, pathological diagnosis, and surgical managements of cataract surgery and manufacturing of spectacles. As there was limited study on the context in our population, further study is need in larger population in Bangladesh need to be contemplated on axial length in emmetropic eye.