This was a single group, open-label clinical study to assess the safety and efficacy of Yung Sheng 55% Color Contact Lens for vision correction.

Inclusion Criteria:

1. The subject must sign the informed consent form.
2. The subject must be at least 20 years of age as of the date of evaluation for the study.
3. The subject must have a spherical prescription range between 0 to -12.00 diopters in each eye.
4. The subject must have manifest refraction Snellen visual acuities (VA) less than 0.8 in each naked eye.
5. The subject must have normal eyes, except ametropia.
6. The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol.
7. The subject must appear able and willing to fill the daily card.

Exclusion Criteria:

1. The subjects who need to use ophthalmic medicine for therapy.
2. The subjects who have ocular or systemic allergies or disease that may interfere with contact lens wear.
3. The subjects who have any history of ocular surgery/injury within 8 weeks prior to enrollment.
4. The subjects who have clinically significant tear secretion abnormal.
5. The subjects who enrolled in another contact lens clinical trial within 30 days prior to enrolment.