GPC, Blepharitis, Ptosis & Tarsal Plate Evaluation

GPC, Blepharitis, Ptosis & Tarsal Plate Evaluation

Quick Answer: At every contact lens follow-up, evert the upper lid and inspect the superior tarsal conjunctiva. Papillae, injection, and scarring on the tarsal plate drive the diagnosis of Giant Papillary Conjunctivitis (GPC), the most significant lens-related complication you will manage. Lid margin disease (blepharitis) and drooping lids (ptosis) are coexisting conditions that shorten wearing time and change fitting strategy.

Giant Papillary Conjunctivitis (GPC)

GPC is an immunologic, mechanically amplified inflammatory reaction to lens deposits, proteins, and the mechanical trauma of the lens edge against the tarsal conjunctiva. It is not an infection. The hallmark finding is papillae on the superior tarsal conjunctiva — you will miss it 100% of the time if you do not evert the upper lid.

Symptoms and Signs

• Itching — the most characteristic symptom; often worse after lens removal
• Mucus discharge — stringy, clear-to-white
• Lens intolerance — patient reports the lens "just doesn't feel right anymore"
• Lens rides up — excessive movement and superior displacement under the upper lid
• Blurred vision — from mucus coating the lens surface
• Papillae on the superior tarsal conjunctiva, ranging from 0.1 mm to >1 mm

GPC Grading (0-4)

GPC Management (Escalating Steps)

1. Improve cleaning — enforce rub-and-rinse; switch to peroxide systems
2. Switch to daily disposable — eliminates deposit buildup entirely; first-line for moderate GPC
3. Shorten wearing time — reduce daily hours and total replacement frequency
4. Switch lens material — RGP lenses deposit less protein and often resolve GPC; low-water ionic materials deposit more
5. Pharmacologic — mast-cell stabilizer/antihistamine combination drops (e.g., olopatadine, alcaftadine) for moderate-to-severe cases
6. Discontinue lens wear — required for grade 3-4 until the tarsal plate normalizes; resume with a new lens type and aggressive regimen

Exam point: RGP lenses are often better tolerated in GPC because they deposit less protein and have less mechanical interaction with the tarsal conjunctiva.

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Blepharitis

Blepharitis is inflammation of the eyelids. It is not caused by the contact lens, but it directly impacts lens success through deposits, discomfort, and reduced wearing time. The two forms affect different anatomy:

Anterior Blepharitis

• Staphylococcal — collarettes around lashes, chronic lid inflammation
• Seborrheic — greasy scales at lash base, associated with seborrheic dermatitis

Posterior Blepharitis (Meibomian Gland Dysfunction, MGD)

• Plugged meibomian glands — express poorly; abnormal lipid layer
• Telangiectasia of lid margin
• Foamy tears — disrupted tear film causes rapid lens surface deposition

Impact on Contact Lens Wear

Blepharitis Management

• Warm compresses — 5-10 minutes, twice daily, to melt meibomian lipids
• Lid hygiene — lid scrubs along the lash margin (commercial pads or dilute baby shampoo)
• Lid massage — express meibomian glands after warming
• Antibiotic — topical azithromycin or oral doxycycline for MGD with inflammation
• Tear supplementation — preservative-free artificial tears
• Hold lens wear in acute exacerbations until lid margins quiet

Exam point: Treat blepharitis before refitting the lens. A lens parameter change alone will not fix deposit-driven discomfort when the lid margin is the source.

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Ptosis (Contact Lens-Induced)

Ptosis is drooping of the upper lid. Contact lens wear can cause or exacerbate ptosis through two mechanisms:

Aponeurotic Ptosis

• Cause — repeated stretching or trauma to the levator aponeurosis
• Risk factors — RGP insertion with suction, forceful lid pulling, hard lens removal
• Finding — elevated lid crease, thinning of the upper lid

Mechanical Ptosis

• Cause — weight of a heavy lens (e.g., high-plus scleral or a thick RGP) on the upper lid
• Risk factors — large-diameter, thick designs; long-term wear
• Finding — reduced marginal reflex distance (MRD) measured in primary gaze

Documentation and Action

• Measure marginal reflex distance (MRD1) and document at baseline and follow-up
• Compare to pre-fit photos if available
• Switch technique — eliminate suction use, teach two-hand insertion
• Reduce lens mass — thinner design or smaller diameter
• Refer — progressive ptosis or MRD <2 mm warrants ophthalmology referral

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Tarsal Plate Evaluation (Mandatory at Every Follow-Up)

The tarsal plate is the dense connective tissue core of the upper lid. The overlying tarsal conjunctiva is the primary site of contact lens complications. Every follow-up visit requires lid eversion — even asymptomatic patients. Early GPC is silent.

Technique

1. Instruct the patient to look down
2. Grasp lashes and lid margin with a cotton swab or forceps
3. Push down on the tarsal plate while folding the lid up over the swab
4. Inspect the superior tarsal conjunctiva under good illumination
5. Grade papillae, note injection, and check for scarring (trantas dots, conjunctival scarring suggest chronic disease)

What You Are Looking For

Exam point: The superior tarsal conjunctiva is the only location where GPC papillae appear. The inferior tarsal conjunctiva and bulbar conjunctiva are not involved in classic GPC.

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Key Takeaways

• GPC requires lid eversion to diagnose; grade 0-4 and escalate care from cleaning to discontinuation.
• Blepharitis (anterior and posterior) drives deposits and discomfort; treat the lid margin before changing the lens.
• Ptosis from contact lens wear may be aponeurotic or mechanical; document MRD and modify insertion technique.
• Tarsal plate evaluation is mandatory at every follow-up — asymptomatic patients can have grade 1-2 GPC.