Some believe that if they just get a new pair of glasses with the “right prescription” that they will see comfortably and well despite having naturally poor eyesight. This is true some of the time but not all of the time. Patients with strong nearsighted and farsighted prescriptions – the patients who tend to seek us out here at Brinton Vision – will often not like the quality of their glasses vision even with the “right prescription.” Glasses for myopia can make the world look smaller and glasses for hyperopia can make the world look more magnified, leading to pincushion and barrel distortion, respectively. Astigmatism correction in lenses can cause distortions in the vision, particularly when one looks to the side. Even the correct glasses prescription can require several glasses re-makes when significant astigmatism is involved.
Beyond prescription, the following nine factors can mean that even with the “right prescription” the resulting vision gives you headaches or is not what you expected.
- Bifocal, trifocal, and progressive add power
- Bifocal, trifocal, and progressive add location and height
- Optical center of lenses
- Distance between lenses (often captured by “pupillary distance” or PD)
- Frame width
- Lens height
- Bridge size
- Temple arm dimensions
- Lens width
Our testing is focused on obtaining the optimal prescription and other eye measurements for LASIK and vision correction surgery. When you’re measuring to correct for a lifetime of clear eyesight rather than a pair of glasses that may need to be renewed the next year, the way you measure is different. Since our measurements for LASIK don’t always translate across to the right glasses prescription, we offer a “glasses check” to all of our patients, which is included in their initial BVOA reservation fee. At this visit, our doctors perform testing focused more on glasses. A glasses check appointment is required to receive a glasses prescription from Brinton Vision, and even with this extra visit, if you are not satisfied with the glasses you get online or from your local optical shop, we would be happy to schedule another visit at no additional charge.