OPT-ISM Eye Care Blog
Helpful eye care tips, vision education, and modern optometry insights from OPTISM in Tampa, FL.

RGP lenses can provide sharp, stable vision for patients with astigmatism, keratoconus, and irregular corneas. Learn how eye doctors evaluate lens movement, fluorescein patterns, comfort, and corneal health during an RGP fitting.

Ehlers-Danlos syndrome affects connective tissue throughout the body, including parts of the eye. Here’s what patients should know about vision changes, dry eye, corneal problems, and warning signs.

Guillain-Barré syndrome is a rare nerve condition that can affect more than the arms and legs. In some patients, it can cause double vision, droopy eyelids, trouble moving the eyes, and dry eye from poor blinking. Here’s what patients should know about the eye-related warning signs.

If your eyes water all day but still feel dry, you may have tear film instability or meibomian gland dysfunction. Learn why dry eye can trigger reflex tearing and how treatment can help restore comfort.

A cover test is a simple but powerful eye alignment test that helps detect hidden or visible eye turns. Learn what eso, exo, hyper, tropia, and phoria mean during an eye exam.

Eye freckles are usually harmless pigmented spots, but they should be monitored. Learn the difference between choroidal, conjunctival, and iris nevi, how doctors photograph them, and which warning signs need attention.

Progressive lenses may look like regular glasses, but inside the lens is a carefully designed blend of prescriptions that helps your eyes see clearly at far, intermediate, and near distances.

A changing glasses prescription does not always mean something is wrong with your eyes. Age, dry eye, blood sugar changes, cataracts, screen use, and normal refractive shifts can all affect how clearly you see. Here’s why your prescription may change even when your eye health is normal.

Ocular coloboma results from incomplete closure of the embryonic fissure, classically producing inferior or inferonasal defects involving the iris, lens zonules, chorioretina, optic nerve, or multiple ocular structures. Clinical evaluation should distinguish typical uveal coloboma from atypical coloboma-like lesions, assess macular and optic nerve involvement, document OCT findings, and monitor for complications such as amblyopia, choroidal neovascularization, and retinal det

Doctors do not need to “sell” glasses in the exam room. They need to connect the patient’s prescription, symptoms, lifestyle, and eye health needs to a clear eyewear recommendation. Here’s how to recommend glasses, lens upgrades, and prescription sunglasses in a way that feels educational, ethical, and patient-centered.

A cataract is a clouding of the natural lens inside the eye. As the lens becomes harder, yellow, and cloudy, vision may become blurry or glary. Cataract surgery removes the cloudy lens material and replaces it with a clear implant.

Confused about whether your eye exam should be billed to vision insurance or medical insurance? You are not alone. Vision insurance typically helps with routine eye care, glasses, and contact lenses, while medical insurance is used for eye health concerns such as dry eye, red eye, diabetes, glaucoma, cataracts, or sudden vision changes. At OPT-ISM Eye Care in South Tampa, we help patients understand the difference so their visit is scheduled and billed appropriately based on

Slow adjustment to light and dark can sometimes be related to reduced blood flow to the retina or optic nerve. Learn why temporary dimming, graying, or loss of vision should be taken seriously and when carotid artery testing may be important.

Your pupils can tell your eye doctor a lot about your eye health, nerve function, and how your eyes respond to light. Learn what is normal, what may need attention, and when to schedule an eye exam.

Blue light glasses may make screens feel more comfortable for some people, but research shows they are not a cure for digital eye strain. Here’s what patients should know.

Color vision deficiency is not always simple “color blindness.” Learn how clinicians test color vision, distinguish congenital from acquired defects, and recognize medication, retinal, optic nerve, and neurologic causes of color vision changes.

Learn how OCT RNFL scans help evaluate the optic nerve and glaucoma risk by measuring retinal nerve fiber layer thickness, quadrants, clock hours, TSNIT curves, and progression.

Concussion patients may see 20/20 but still struggle with focusing, eye teaming, reading, light sensitivity, and dizziness. Here is what optometrists should know and do during a post-concussion eye exam.

The Parks 3-step test helps eye doctors evaluate vertical double vision by narrowing down which eye muscle may be causing the misalignment. This clinician-focused guide explains how to use the test, interpret hypertropia patterns, and recognize when findings may point to a superior oblique palsy or another cause of diplopia.

Diplopia requires a systematic clinical approach. This doctor-focused guide reviews how to separate monocular from binocular double vision, localize cranial nerve and eye muscle patterns, recognize urgent red flags, and understand how diabetes can contribute to microvascular ischemic cranial nerve palsies.