OCT(Optical Coherence Tomography) is known as an effective device that provides necessary information to detect Glaucoma and Retinal disease in early phase. And OCT Reference Database collected in healthy eyes should be established to suggest in which level the patient’s results are compared to the normal eyes.
In this study, establish the reference database of 300 health eyes after pre-defined screening test.

Others

(Data gathering)

according to the pre-defined screenning test, measure the healthy eye 3times.

Arm Label

Target Number of Participant

Arm Type

Arm Description

1. average, superior, inferior, terporal and nasal thickness of retinal nerve fiber layer.
2. thickness of O'clock hour segement in retinal nerve fiber layer.
3. thickness of central fovea, inner macular and outer macular.

Gender

Age

Description

1. Age range between more than 20 ~ less than 70 years old.
2. Subjects able to understand the written informed consent and willing to participate as evidenced by signing the informed consent
3. No ocular medication (except artificial tears/moistening drops) necessary
4. Eyes with spherical power <= ±4.0D, cylindrical power <= ±3.0D
5. Corrected distance visual acuity
- ≥ 1.0 [20/20] for subjects up to 60 years;
- ≥ 0.8 [20/25] for subjects from 61 to 70 years; 
6. Intraocular pressure <= 21 mmHg
7. Normal anterior segments, i.e. no clinically-relevant abnormalities
-. Eyes with no closed iridocorneal angle structure
8. Ocular fundus: normal appearance, i.e. no clinically-relevant abnormalities (examination with undilated pupils)
9. Eyes without prior intraocular surgery (except cataract surgery) without clinically-relevant vitreal, retinal or choroidal diseases, diabetic retinopathy, or disease of the optic nerve.
10. Eyes without a history of corneal refractive surgery.

1. Amblyopia
2. Relevant opacities of the central refractive media (cornea, lens, vitreous body)
3.Drugs indicating severe general diseases (anti-diabetic pharmaceuticals
 and anti-hypertensive medication are allowed for subjects older than 70 years)
4. Eyes having experience wearing hard contact(RGB) lenses within 2 weeks from the screening date
5. Pregnant or lactating women
6. One who can influence the study results by ethically or else, accordingly considered to be ineligible

Pearson correlation coefficient between age and thickness, RNFL thickness with segmentation.

same time

O’clock hour segment thickness of RNFL

same time

Macular thickness

same time

Optic nerve head parameter area or ratio

same time