Author

Thomas McDonald Page 3

Thomas McDonald is a staff writer at Biology Insights with a focus on everyday vision and eye health. Based in Stowe, Vermont, he spent years writing optical consumer pieces for regional publications. McDonald uses his own experience as a lifelong eyeglasses wearer to explain prescription options and lens care.

What Is 6/6 Vision? The Standard for Normal Eyesight Eyes & ENT
How Often Can You Safely Use Eye Wash?Eyes & ENT
Why Does My Contact Keep Folding When I Try to Put It In?Eyes & ENT
What Is Uncorrected Vision and How Is It Measured?Eyes & ENT
How Bad Is -2.5 Vision? What It Means for Your Eyesight Eyes & ENT
What Is 20/13 Vision and Is It Better Than 20/20?Eyes & ENT
How Long Can You Wear 2-Week Contacts?Eyes & ENT
Can You Wear Two Contacts at Once?Eyes & ENT
What Happens If Your Prescription Is Too Strong?Drugs
Can I Wear My Contacts After Dilation?Eyes & ENT
Is It Bad to Wear Two Different Prescription Glasses?Eyes & ENT
How to Safely Clean the Tip of an Eye Drop Bottle Safety
What Line Is 20/40 on the Eye Chart?Eyes & ENT
What Happens If You Use Expired Eye Wash?Eyes & ENT
Do Contacts Make Your Vision Worse?Eyes & ENT
Can I Wear Glasses and Contacts at the Same Time?Eyes & ENT
Is 1.75 Bad Eyesight? Explaining Your Eye Prescription Eyes & ENT
Can You Wear Contacts in the Rain?Eyes & ENT
Is Systane Safe for Contacts? It Depends on Type Eyes & ENT
Why Is There No PD on My Eye Prescription?Eyes & ENT
What Size Are Your Pupils Supposed to Be: Normal Ranges Eyes & ENT
What Part of Your Eye Is the Cornea, Exactly?Eyes & ENT
What Is Considered Good Vision? It’s More Than 20/20 Eyes & ENT
Why Do Glasses Prescriptions Expire? Eye Health Facts Eyes & ENT
How Bad Is -1.25 Vision? Mild, Moderate, or Serious?Eyes & ENT
Is Biotrue Contact Solution Good for Your Eyes?Eyes & ENT
How Can You Tell If Your Contacts Are Inside Out?Eyes & ENT
What Does 20/20-2 Vision Mean and Is It Good?Eyes & ENT
How to Know If You Need Reading Glasses: 5 Signs Eyes & ENT
How Do I Read My Eye Prescription? Numbers Explained Eyes & ENT