# K241571: BostonSight® Specialty Lenses

- Pathway: 510(k) (Traditional)
- Applicant: Boston Foundation For Sight, Inc. D/B/A Bostonsight
- Decided: Aug 14, 2024 after 75 days
- Product code: HQD (Lens, Contact (Other Material) - Daily)
- Device class: 2
- Regulation: 21 CFR 886.5916
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 13 generations back to K943177 (1994). 61 ancestors in all.
No later device cites it as a predicate yet.
0 of 61 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K183175: BostonSight Scleral, Bostonsight (2019) Summary page 6.
- K180616: OPTIMUM GP (roflufocon D, roflurocon E) Daily Wear Contact Lens, HEXA100 (hexafocon A) Daily Wear Contact Lens, Contamac, Ltd. (2018) Summary page 7.
- K212631: Optimum Infinite (tisilfocon A) Daily Wear Contact Lenses, Contamac, Ltd. (2022) Summary page 7.
- K183167: Boston ES (enflufocon A) Rigid Gas Permeable Contact Lens; Boston EO (enflufocon B) Rigid Gas Permeable Contact Lens; Boston XO (hexafocon A) Rigid Gas Permeable Contact Lens; Boston XO2 (hexafocon B) Rigid Gas Permeable Contact Lens, Bausch & Lomb, Incorporated (2019) Summary page 7.
- K240618: Acuity 200™ (fluoroxyfocon A) Rigid Gas Permeable Contact Lens; Acuity 100™ (hexafocon A) Rigid Gas Permeable Contact Lens; Acuity 200™ with Tangible® Hydra-PEG® (fluoroxyfocon A) Rigid Gas Permeable Contact Lens; Acuity 100™ with Tangible® Hydra-PEG® (hexafocon A) Rigid Gas Permeable Contact Lens, Acuity Polymers, Inc. (2024) Summary page 7.

## Indications for use
The BostonSight® Specialty Lenses (roflufocon D, roflufocon E, tisilfocon A, hexafocon B, oprifocon A, fluoroxyfocon A) for daily wear are indicated for the correction of refractive ametropia (myopia, hyperopia, astigmatism, and presbyopia) in aphakic and non-aphakic persons with non-diseased eyes. The lenses may be prescribed in otherwise non-diseased eyes that require a gas permeable contact lens for the management of irregular corneal conditions such as keratoconus, pellucid marginal degeneration, or following penetrating keratoplasty or refractive surgery. Furthermore, eyes suffering from certain ocular surface disorders may benefit from the physical protection, aqueous hydrated environment, and the saline bath provided by scleral lens designs. The BostonSight Specialty Lenses for daily wear in the scleral lens designs are indicated for therapeutic use in eyes with ocular surface disease including, but not limited to, ocular Graft-versus-Host disease, Sjögren’s syndrome, dry eye syndrome and Filamentary Keratitis, limbal stem cell deficiency (e.g. Stevens-Johnson syndrome, chemical radiation and thermal burns), disorders of the skin (e.g. atopy, ectodermal dysplasia), neurotrophic keratitis (e.g. Herpes simplex, Herpes zoster, Familial Dysautonomia), and corneal exposure (e.g. anatomic, paralytic) that might benefit from the presence of an expanded tear reservoir and protection against an adverse environment. Additionally, the BostonSight Specialty Lenses for daily wear in the scleral lens designs are indicated for therapeutic use for the management of irregular and distorted corneal surfaces. Common causes of corneal distortion include, but are not limited to, corneal infections, trauma, tractions as a result of scar formation secondary to refractive surgery (e.g. LASIK or radial keratotomy) or corneal transplantation. Causes may also include corneal degeneration (e.g. keratoconus, keratoglobus, pellucid marginal degeneration, Salzmann's nodular degeneration) and corneal dystrophy (e.g., lattice dystrophy, granular corneal dystrophy, Reis-Bucklers dystrophy, Cogan's dystrophy). When prescribed for therapeutic use for a distorted cornea or ocular surface disease, the BostonSight Specialty Scleral Lenses for daily wear may concurrently provide correction of refractive error. Eye care practitioners may prescribe the lenses for frequent/planned replacement wear, with cleaning, disinfection and scheduled replacement. When prescribed for frequent/planned replacement wear the lens may be cleaned and disinfected using a chemical (not heat) lens care system.

Source page: https://510kreport.com/device/K241571
Methodology: https://510kreport.com/methodology