SciMed
78D Double Aspheric Lens, Anti-Reflection Coated, Slit Lamp Fundus Lens
78D Double Aspheric Lens, Anti-Reflection Coated, Slit Lamp Fundus Lens
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78D double aspheric ophthalmic diagnostic lens, the widest-field indirect fundus lens in the standard slit-lamp lens family, ideal for peripheral retinal survey, retinal tear and detachment screening, and dynamic fundoscopy in small pupils. The original 78D started the slit-lamp fundus examination revolution and remains a peripheral-retina workhorse. Small aperture ring is optimized for dynamic movement through small undilated pupils. Anti-reflection coated glass. Non-contact (patient comfort, no anesthetic drop, no coupling gel). $99.99 direct, versus $275-$450 for Volk V78 / Ocular MaxLight 78D / Nikon 78D branded equivalents.
Applications
- Peripheral retinal survey: the widest-field slit-lamp lens for scanning far-peripheral retina in one view
- Retinal tear and detachment screening: the primary diagnostic use, particularly for high-myope, trauma and PVD-symptom patients
- Diabetic retinopathy screening: peripheral hemorrhages, microaneurysms, NVE (neovascularization elsewhere)
- Lattice degeneration surveillance: annual monitoring of at-risk peripheral retina
- Post-vitrectomy periphery check: post-op peripheral inspection after retinal surgery
- Small-pupil fundus exam: the 78D's smaller aperture works through undilated pupils better than the 90D
- Dynamic fundoscopy: sweep the lens laterally for real-time wide-field survey
- Optometry teaching and residency training: the essential second lens after the 90D
Specifications
| Lens Power | 78 diopters (D), wide-field indirect biomicroscopy |
|---|---|
| Field of View | ~81° static / ~97° dynamic (widest in standard slit-lamp lens family) |
| Image Magnification | 0.93× (image slightly minified, trade-off for wide field) |
| Optics | Double aspheric glass, corrects field curvature, astigmatism, spherical aberration, and coma |
| Aperture | Small aperture ring, optimized for small pupils and dynamic fundoscopy |
| Coating | Anti-reflection multi-layer coating (reduces glare and improves peripheral contrast) |
| Contact | Non-contact (no anesthetic drop, no coupling gel, no corneal risk) |
| Case | Includes hard protective storage case |
78D vs 90D vs 60D: Which Do You Need?
| Lens | Field of View | Image Mag | Best For |
|---|---|---|---|
| 60D | ~68° | 1.15× | Highest magnification, optic nerve detail and macular pathology microscopy. Slower to use. |
| 78D (this lens) | ~81° static / ~97° dynamic | 0.93× | Widest field, peripheral retinal survey, tear/detachment screening. THE small-pupil workhorse. |
| 90D | 50° static / ~74° dynamic | 2.97× | Daily-use workhorse, balances field and mag for general fundus, optic nerve, macula. Best "first lens". |
Practical order: most practitioners buy 90D first (general workhorse), then 78D second (peripheral and tear screening). 60D is a specialist third lens for detailed macular work. For a full set, see the SciMed 20D, 78D and 90D combo pack.
Comparison to Premium Branded 78D Lenses
| Brand / Model | Power | FOV | Coating | Price |
|---|---|---|---|---|
| Volk V78 (Superfield) | 78D | ~81° static | AR and antifog | $425-$525 |
| Ocular MaxLight 78D | 78D | ~81° | Ocular's OQM coating | $350-$425 |
| Nikon 78D | 78D | ~80° | Nikon multi-coat | $275-$350 |
| SciMed 78D | 78D | ~81° static / 97° dynamic | AR multi-layer | $99.99 |
Best For
- Ophthalmology and optometry practices (peripheral retina exam is essential)
- Retina specialists (primary tool for peripheral tear/detachment screening)
- Optometry and ophthalmology residency programs (second essential fundus lens)
- Community and rural eye clinics (cost-effective peripheral screening)
- International eye NGOs, Aravind, LV Prasad, Fred Hollows, Sightsavers, ORBIS
- Backup / spare lens for busy multi-lane practices
- International DDP procurement for global eye-care programs
Not sure which power you need? Read our 20D vs 78D vs 90D lens buying guide or the complete aspheric lens guide.
Buying for a Practice, Residency, or Eye NGO?
- Volume pricing on 3+ lenses (multi-provider practice or residency cohort)
- Net-30 invoicing for verified academic, NGO and practice accounts
- SAM.gov / VA compliant for federal and academic ophthalmology
- Bundle with 20D, 90D and gonioscope lenses, SciMed complete fundus and angle exam kit at package discount
- International DDP shipping, global eye NGO and academic procurement
FAQ
90D or 78D: which first for a new residency starter kit?
90D first (the primary daily-driver). 78D second, for peripheral survey and tear/detachment screening. Most residents own both by end of PGY-1. Buying together via SciMed bundle discount is the value play (~$180 for both vs $99.99 each individually).
How does this compare to Volk V78 Superfield?
Volk V78 Superfield is the industry gold standard, 20+ years of professional use, premium AR and antifog coating, tight machining. This SciMed 78D matches the optical prescription (78D double aspheric) and similar FOV. Volk's coating longevity and longer warranty are the meaningful differences. Price differential: $99.99 vs $425-$525. For residency training, community clinic, NGO and international market, SciMed hits the value sweet spot.
Can I use this through small undilated pupils?
Yes, this is one of the 78D's strengths. The smaller aperture ring works better through undilated 3-4mm pupils than the 90D. If patient dilation is limited (post-cataract, elderly, pilocarpine users), the 78D gives you a cleaner view than the 90D can achieve.
Care and cleaning?
Wipe with lens tissue and optical cleaner between patients. Soft brush and air puff to remove dust. Never touch lens surface (skin oils degrade AR coating). Store in hard case. Do NOT use alcohol-based clinical disinfectants, only lens-cleaning-specific solutions.
User Manual (PDF)
Download the Instructions for Use (PDF)
Browse all manuals by category at scimedstore.com/pages/user-manuals. Need a digital or printed copy, or have a question? Email sales@scimedstore.com.
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