Understanding Your Eye Prescription
Sample Prescription:
| Sphere | Cylinder | Axis | ADD | VA | |
| OS | -1.00 | -0.50 | 180 | +2.00 | 20/20 |
| OD | -1.00 | -0.50 | 180 | +2.00 | 20/20 |
Where To Start
Your prescription is made of a few measurements that help our lab to create the right lens for you. Here is a brief explanation on what each one of those measurements mean:-
Sphere: The Length of Your Eyes
- Myopia (-):The minus sign in front of the spherical number is how much minus power needed to help someone see 20/20 (or as close to that as possible). As a result of this, a myopic person can see clearly near them, but cannot see well at a distance.
- Hyperopia (+): The plus sign in front of the number is how much minus power is needed to help someone see 20/20 (or as close to that as possible). As a result of this, a hyperopic person can see clearly at a distance, but might have trouble seeing at near distances.
2. Cylinder: The Shape of Your Eyes
Our eyes are born evenly spherical in all directions. Sometimes over time, due to genetic reasons or other medical reasons, our eyes can change in shape. This is a common and known as astigmatism.
Typically with astigmatism, our eyes turn from being an even spherical shape to an oval “football” shaped eyeball. Astigmatism can be easily corrected through proper corrective vision.
