People who are not fit to wear contact lenses

 In the ophthalmology clinic, we can often encounter patients with uncomfortable wear. Redness, pain, tears, itching, foreign body feeling and so on are common problems. In the above, Ms. Chen's eye disease is the mismatch caused by the base arc of the Buy Lenses For Glasses. The eye is similar to a sphere, and the surface has a certain radian. Everyone's radian is different. The radian of the contact lens must match the radian of the wearer's cornea. The base arc of Ms. Chen's lens is obviously too small, and the lens is tightly fastened to the eye. Once the lens is dry and solid, it is easy to cause the acute attack of eye disease.

Purchasing contact Eyeglass Lenses Online is not only a commercial behavior, but also has a certain degree of medical professionalism. The degree of contact lens is generally lower than that of frame Glasses Lens Index, and the specific value should be obtained through conversion. Generally, it is better to choose materials with high oxygen permeability coefficient for lenses with height, such as RGP (rigid oxygen permeable contact lenses). If the astigmatism exceeds -1.5d, it is better to customize special astigmatism Transition Lenses. People with sensitive eyes can choose materials with higher water content, while those who often dry need lower water content. There are different selection methods, so they can be purchased according to the inspection results and suggestions of professional doctors.